Buildresult: linus/s390-allmodconfig/s390x-gcc4.6 built on Oct 19 2018, 02:46

kisskb

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Status:	OK
Date/Time:	Oct 19 2018, 02:46
Duration:	0:09:35.553183
Builder:	ka2
Revision:	fscache: Fix out of bound read in long cookie keys (`fa520c47eaa15b9baa8ad66ac18da4a31679693b)`
Target:	linus/s390-allmodconfig/s390x-gcc4.6
Branch:	linus
Compiler:	s390x-gcc4.6 (s390x-linux-gcc (GCC) 4.6.3)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (176) kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] arch/s390/crypto/aes_s390.c:217:1: warning: 'fallback_blk_dec' uses dynamic stack allocation [enabled by default] arch/s390/crypto/aes_s390.c:234:1: warning: 'fallback_blk_enc' uses dynamic stack allocation [enabled by default] arch/s390/crypto/aes_s390.c:486:1: warning: 'xts_fallback_decrypt' uses dynamic stack allocation [enabled by default] arch/s390/crypto/aes_s390.c:505:1: warning: 'xts_fallback_encrypt' uses dynamic stack allocation [enabled by default] security/keys/encrypted-keys/encrypted.c:337:1: warning: 'calc_hash' uses dynamic stack allocation [enabled by default] kernel/events/core.c:7651:1: warning: 'perf_log_throttle' uses dynamic stack allocation [enabled by default] kernel/events/core.c:9134:1: warning: 'perf_swevent_hrtimer' uses dynamic stack allocation [enabled by default] kernel/events/core.c:7692:1: warning: 'perf_log_itrace_start' uses dynamic stack allocation [enabled by default] kernel/events/core.c:6581:1: warning: 'perf_event_read_event' uses dynamic stack allocation [enabled by default] kernel/events/core.c:6860:1: warning: 'perf_event_task_output' uses dynamic stack allocation [enabled by default] kernel/events/core.c:7216:1: warning: 'perf_event_mmap_output' uses dynamic stack allocation [enabled by default] kernel/events/core.c:7053:1: warning: 'perf_event_namespaces_output' uses dynamic stack allocation [enabled by default] kernel/events/core.c:6954:1: warning: 'perf_event_comm_output' uses dynamic stack allocation [enabled by default] kernel/events/core.c:7580:1: warning: 'perf_event_switch_output' uses dynamic stack allocation [enabled by default] kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/events/core.c:7488:1: warning: 'perf_event_aux_event' uses dynamic stack allocation [enabled by default] kernel/events/core.c:7521:1: warning: 'perf_log_lost_samples' uses dynamic stack allocation [enabled by default] kernel/events/core.c:8331:1: warning: 'perf_tp_event' uses dynamic stack allocation [enabled by default] kernel/events/core.c:8017:1: warning: '___perf_sw_event' uses dynamic stack allocation [enabled by default] kernel/events/ring_buffer.c:238:1: warning: 'perf_output_begin_forward' uses dynamic stack allocation [enabled by default] kernel/events/ring_buffer.c:244:1: warning: 'perf_output_begin_backward' uses dynamic stack allocation [enabled by default] kernel/events/ring_buffer.c:252:1: warning: 'perf_output_begin' uses dynamic stack allocation [enabled by default] security/integrity/ima/ima_crypto.c:600:1: warning: 'calc_buffer_shash_tfm' uses dynamic stack allocation [enabled by default] security/integrity/ima/ima_crypto.c:667:1: warning: 'ima_calc_boot_aggregate_tfm' uses dynamic stack allocation [enabled by default] security/integrity/ima/ima_crypto.c:388:1: warning: 'ima_calc_file_hash_tfm' uses dynamic stack allocation [enabled by default] security/integrity/ima/ima_crypto.c:493:1: warning: 'ima_calc_field_array_hash_tfm.isra.3' uses dynamic stack allocation [enabled by default] arch/s390/kernel/perf_cpum_sf.c:1075:1: warning: 'perf_push_sample' uses dynamic stack allocation [enabled by default] drivers/atm/ambassador.c:1762:3: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] fs/afs/dynroot.c:126:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized] security/apparmor/crypto.c:64:1: warning: 'aa_calc_hash' uses dynamic stack allocation [enabled by default] security/apparmor/crypto.c:106:1: warning: 'aa_calc_profile_hash' uses dynamic stack allocation [enabled by default] crypto/seqiv.c:115:1: warning: 'seqiv_aead_encrypt' uses dynamic stack allocation [enabled by default] crypto/shash.c:141:1: warning: 'shash_final_unaligned' uses dynamic stack allocation [enabled by default] crypto/shash.c:105:1: warning: 'shash_update_unaligned' uses dynamic stack allocation [enabled by default] drivers/base/regmap/regmap.c:2511:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1833:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] crypto/hmac.c:88:1: warning: 'hmac_setkey' uses dynamic stack allocation [enabled by default] drivers/block/drbd/drbd_worker.c:325:1: warning: 'drbd_csum_ee' uses dynamic stack allocation [enabled by default] drivers/block/drbd/drbd_worker.c:352:1: warning: 'drbd_csum_bio' uses dynamic stack allocation [enabled by default] crypto/cbc.c:79:1: warning: 'crypto_cbc_decrypt' uses dynamic stack allocation [enabled by default] crypto/gcm.c:1077:1: warning: 'crypto_rfc4543_copy_src_to_dst' uses dynamic stack allocation [enabled by default] crypto/echainiv.c:88:1: warning: 'echainiv_encrypt' uses dynamic stack allocation [enabled by default] drivers/block/drbd/drbd_receiver.c:5400:1: warning: 'drbd_do_auth' uses dynamic stack allocation [enabled by default] crypto/xcbc.c:79:1: warning: 'crypto_xcbc_digest_setkey' uses dynamic stack allocation [enabled by default] kernel/smp.c:307:1: warning: 'smp_call_function_single' uses dynamic stack allocation [enabled by default] include/asm-generic/io.h:232:15: warning: 'px_is' may be used uninitialized in this function [-Wuninitialized] include/asm-generic/io.h:232:15: warning: 'px_cmd' may be used uninitialized in this function [-Wuninitialized] crypto/ccm.c:235:1: warning: 'crypto_ccm_auth' uses dynamic stack allocation [enabled by default] kernel/rseq.c:249:1: warning: 'rseq_ip_fixup' uses dynamic stack allocation [enabled by default] kernel/rseq.c:301:1: warning: 'rseq_syscall' uses dynamic stack allocation [enabled by default] crypto/cryptd.c:533:1: warning: 'cryptd_skcipher_decrypt' uses dynamic stack allocation [enabled by default] crypto/cryptd.c:505:1: warning: 'cryptd_skcipher_encrypt' uses dynamic stack allocation [enabled by default] fs/crypto/keyinfo.c:250:1: warning: 'derive_essiv_salt' uses dynamic stack allocation [enabled by default] fs/ecryptfs/crypto.c:75:1: warning: 'ecryptfs_hash_digest' uses dynamic stack allocation [enabled by default] fs/btrfs/ref-verify.c:503:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] sound/hda/hdac_regmap.c:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] mm/slub.c:2132:1: warning: 'deactivate_slab.isra.50' uses dynamic stack allocation [enabled by default] mm/slub.c:2200:1: warning: 'unfreeze_partials.isra.51' uses dynamic stack allocation [enabled by default] mm/slub.c:1832:1: warning: 'get_partial_node.isra.52' uses dynamic stack allocation [enabled by default] mm/slub.c:2587:1: warning: '___slab_alloc' uses dynamic stack allocation [enabled by default] mm/slub.c:2888:1: warning: '__slab_free' uses dynamic stack allocation [enabled by default] crypto/authenc.c:197:1: warning: 'crypto_authenc_copy_assoc' uses dynamic stack allocation [enabled by default] crypto/authencesn.c:194:1: warning: 'crypto_authenc_esn_copy' uses dynamic stack allocation [enabled by default] crypto/algif_hash.c:276:1: warning: 'hash_accept' uses dynamic stack allocation [enabled by default] fs/f2fs/file.c:2871:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] crypto/algif_aead.c:90:1: warning: 'crypto_aead_copy_sgl' uses dynamic stack allocation [enabled by default] drivers/block/cryptoloop.c:167:1: warning: 'cryptoloop_transfer' uses dynamic stack allocation [enabled by default] lib/test_ubsan.c:67:1: warning: 'test_ubsan_out_of_bounds' uses dynamic stack allocation [enabled by default] lib/test_ubsan.c:51:1: warning: 'test_ubsan_vla_bound_not_positive' uses dynamic stack allocation [enabled by default] cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] drivers/s390/net/ism_drv.c:84:1: warning: 'query_info' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:111:1: warning: 'register_sba' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:140:1: warning: 'register_ieq' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:209:1: warning: 'ism_query_rgid' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:297:1: warning: 'ism_unregister_dmb' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:311:1: warning: 'ism_add_vlan_id' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:325:1: warning: 'ism_del_vlan_id' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:353:1: warning: 'ism_signal_ieq' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:487:1: warning: 'ism_dev_init' uses dynamic stack allocation [enabled by default] drivers/s390/net/ism_drv.c:276:1: warning: 'ism_register_dmb' uses dynamic stack allocation [enabled by default] drivers/crypto/ccree/cc_cipher.c:383:1: warning: 'cc_cipher_setkey' uses dynamic stack allocation [enabled by default] lib/libcrc32c.c:59:1: warning: 'crc32c' uses dynamic stack allocation [enabled by default] drivers/crypto/chelsio/chtls/chtls_cm.c:405:1: warning: 'wait_for_states.constprop.22' uses dynamic stack allocation [enabled by default] drivers/dma-buf/reservation.c:208:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized] drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] sound/soc/codecs/arizona.c:1893:3: warning: 'aif_rx_state' may be used uninitialized in this function [-Wuninitialized] sound/soc/codecs/arizona.c:1890:3: warning: 'aif_tx_state' may be used uninitialized in this function [-Wuninitialized] drivers/crypto/mediatek/mtk-sha.c:834:1: warning: 'mtk_sha_setkey' uses dynamic stack allocation [enabled by default] drivers/crypto/mediatek/mtk-sha.c:373:1: warning: 'mtk_sha_finish_hmac' uses dynamic stack allocation [enabled by default] drivers/crypto/chelsio/chcr_algo.c:699:1: warning: 'chcr_cipher_fallback' uses dynamic stack allocation [enabled by default] drivers/crypto/chelsio/chcr_algo.c:2081:1: warning: 'chcr_ahash_setkey' uses dynamic stack allocation [enabled by default] drivers/crypto/chelsio/chcr_algo.c:3496:1: warning: 'chcr_authenc_setkey' uses dynamic stack allocation [enabled by default] drivers/crypto/qce/ablkcipher.c:229:1: warning: 'qce_ablkcipher_crypt' uses dynamic stack allocation [enabled by default] sound/soc/codecs/da7219-aad.c:321:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized] drivers/crypto/s5p-sss.c:1534:1: warning: 's5p_hash_shash_digest' uses dynamic stack allocation [enabled by default] net/bridge/netfilter/ebtables.c:1906:1: warning: 'compat_copy_everything_to_user' uses dynamic stack allocation [enabled by default] sound/soc/codecs/rt5665.c:2666:33: warning: 'val2' may be used uninitialized in this function [-Wuninitialized] sound/soc/codecs/rt5665.c:2663:33: warning: 'val1' may be used uninitialized in this function [-Wuninitialized] net/bridge/br_netlink.c:589:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2069:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2074:42: warning: 'end' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4recover.c:147:1: warning: 'nfs4_make_rec_clidname' uses dynamic stack allocation [enabled by default] drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:546:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] fs/nfs/super.c:890:1: warning: 'nfs_show_stats' uses dynamic stack allocation [enabled by default] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] drivers/input/joystick/analog.c:172:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] net/ceph/crypto.c:278:1: warning: 'ceph_aes_crypt.isra.4' uses dynamic stack allocation [enabled by default] drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/iommu/io-pgtable-arm-v7s.c:438:7: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized] drivers/infiniband/sw/rxe/rxe_req.c:506:1: warning: 'fill_packet.isra.33' uses dynamic stack allocation [enabled by default] drivers/infiniband/sw/rxe/rxe_recv.c:423:1: warning: 'rxe_rcv' uses dynamic stack allocation [enabled by default] drivers/infiniband/sw/rxe/rxe_mr.c:431:1: warning: 'rxe_mem_copy' uses dynamic stack allocation [enabled by default] drivers/infiniband/sw/rxe/rxe_icrc.c:96:1: warning: 'rxe_icrc_hdr' uses dynamic stack allocation [enabled by default] drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1447:10: warning: missing braces around initializer [-Wmissing-braces] drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1447:10: warning: (near initialization for 'task_info.process_name') [-Wmissing-braces] drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:262:10: warning: missing braces around initializer [-Wmissing-braces] drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:262:10: warning: (near initialization for 'task_info.process_name') [-Wmissing-braces] drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:102:1: warning: 'inst' may be used uninitialized in this function [-Wuninitialized] drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:102:1: warning: 'type' may be used uninitialized in this function [-Wuninitialized] drivers/md/dm-crypt.c:350:1: warning: 'crypt_iv_essiv_init' uses dynamic stack allocation [enabled by default] drivers/iio/proximity/isl29501.c:253:7: warning: 'msb' may be used uninitialized in this function [-Wuninitialized] drivers/md/dm-crypt.c:792:1: warning: 'crypt_iv_tcw_whitening.isra.25' uses dynamic stack allocation [enabled by default] drivers/md/dm-crypt.c:645:1: warning: 'crypt_iv_lmk_one.isra.26' uses dynamic stack allocation [enabled by default] drivers/md/dm-verity-fec.c:301:1: warning: 'fec_read_bufs' uses dynamic stack allocation [enabled by default] drivers/md/dm-integrity.c:1311:1: warning: 'integrity_sector_checksum' uses dynamic stack allocation [enabled by default] drivers/md/dm-integrity.c:1415:1: warning: 'integrity_metadata' uses dynamic stack allocation [enabled by default] drivers/md/dm-integrity.c:574:1: warning: 'section_mac' uses dynamic stack allocation [enabled by default] drivers/md/dm-integrity.c:1648:1: warning: '__journal_read_write' uses dynamic stack allocation [enabled by default] drivers/md/dm-integrity.c:2060:1: warning: 'do_journal_write' uses dynamic stack allocation [enabled by default] drivers/nfc/s3fwrn5/firmware.c:501:1: warning: 's3fwrn5_fw_download' uses dynamic stack allocation [enabled by default] drivers/nvme/host/lightnvm.c:625:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/pinctrl/cirrus/pinctrl-madera-core.c:659:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/pinctrl/cirrus/pinctrl-madera-core.c:660:3: warning: 'reg' may be used uninitialized in this function [-Wuninitialized] drivers/soc/qcom/rpmh.c:355:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/target/iscsi/cxgbit/cxgbit_target.c:501:1: warning: 'cxgbit_tx_datain_iso.isra.32' uses dynamic stack allocation [enabled by default] drivers/target/iscsi/iscsi_target.c:2851:1: warning: 'iscsit_send_datain' uses dynamic stack allocation [enabled by default] net/ncsi/ncsi-manage.c:625:19: warning: 'vid' may be used uninitialized in this function [-Wuninitialized] net/mac802154/llsec.c:859:1: warning: 'llsec_do_decrypt_unauth.isra.3' uses dynamic stack allocation [enabled by default] net/mac802154/llsec.c:641:1: warning: 'llsec_do_encrypt_unauth.isra.4' uses dynamic stack allocation [enabled by default] drivers/net/ppp/ppp_mppe.c:186:1: warning: 'mppe_rekey' uses dynamic stack allocation [enabled by default] drivers/net/ppp/ppp_mppe.c:670:1: warning: 'mppe_decompress' uses dynamic stack allocation [enabled by default] drivers/net/ppp/ppp_mppe.c:445:1: warning: 'mppe_compress' uses dynamic stack allocation [enabled by default] drivers/media/usb/dvb-usb/pctv452e.c:922:2: warning: value computed is not used [-Wunused-value] net/sctp/sm_make_chunk.c:1700:1: warning: 'sctp_pack_cookie.isra.9' uses dynamic stack allocation [enabled by default] net/sctp/sm_make_chunk.c:1877:1: warning: 'sctp_unpack_cookie' uses dynamic stack allocation [enabled by default] drivers/net/wan/lmc/lmc_main.c:1852:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] drivers/net/wan/lmc/lmc_main.c:1861:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] drivers/net/wan/lmc/lmc_main.c:1863:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] drivers/net/wan/lmc/lmc_main.c:1874:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] drivers/net/wan/lmc/lmc_main.c:1876:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] drivers/net/wan/lmc/lmc_main.c:1877:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] net/sctp/auth.c:778:1: warning: 'sctp_auth_calculate_hmac' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:728:1: warning: 'gss_krb5_cts_crypt' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:91:1: warning: 'krb5_encrypt' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:129:1: warning: 'krb5_decrypt' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:555:1: warning: 'gss_encrypt_xdr_buf' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:634:1: warning: 'gss_decrypt_xdr_buf' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:849:1: warning: 'gss_krb5_aes_encrypt' uses dynamic stack allocation [enabled by default] net/sunrpc/auth_gss/gss_krb5_crypto.c:942:1: warning: 'gss_krb5_aes_decrypt' uses dynamic stack allocation [enabled by default] net/rxrpc/rxkad.c:141:1: warning: 'rxkad_prime_packet_security' uses dynamic stack allocation [enabled by default] net/rxrpc/rxkad.c:564:1: warning: 'rxkad_verify_packet' uses dynamic stack allocation [enabled by default] net/rxrpc/rxkad.c:1051:1: warning: 'rxkad_decrypt_response.isra.6' uses dynamic stack allocation [enabled by default] net/rxrpc/rxkad.c:772:1: warning: 'rxkad_encrypt_response.isra.7' uses dynamic stack allocation [enabled by default] net/rxrpc/rxkad.c:313:1: warning: 'rxkad_secure_packet' uses dynamic stack allocation [enabled by default] drivers/net/tun.c:1794:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1704:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] net/sunrpc/stats.c:268:1: warning: 'rpc_clnt_show_stats' uses dynamic stack allocation [enabled by default] drivers/usb/wusbcore/crypto.c:286:1: warning: 'wusb_ccm_mac' uses dynamic stack allocation [enabled by default] drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:545:41: warning: overflow in implicit constant conversion [-Woverflow] drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c:609:16: warning: 'type' may be used uninitialized in this function [-Wuninitialized] drivers/net/ethernet/neterion/vxge/vxge-config.c:1088:1: warning: 'vxge_hw_device_hw_info_get' uses dynamic stack allocation [enabled by default] drivers/net/ethernet/mellanox/mlx5/core/fs_core.c:815:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized] scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] Full Log # git rev-parse -q --verify fa520c47eaa15b9baa8ad66ac18da4a31679693b^{commit} fa520c47eaa15b9baa8ad66ac18da4a31679693b already have revision, skipping fetch # git checkout -q -f -B kisskb fa520c47eaa15b9baa8ad66ac18da4a31679693b # git clean -qxdf # < git log -1 # commit fa520c47eaa15b9baa8ad66ac18da4a31679693b # Author: Eric Sandeen <sandeen@redhat.com> # Date: Wed Oct 17 15:23:59 2018 +0100 # # fscache: Fix out of bound read in long cookie keys # # fscache_set_key() can incur an out-of-bounds read, reported by KASAN: # # BUG: KASAN: slab-out-of-bounds in fscache_alloc_cookie+0x5b3/0x680 [fscache] # Read of size 4 at addr ffff88084ff056d4 by task mount.nfs/32615 # # and also reported by syzbot at https://lkml.org/lkml/2018/7/8/236 # # BUG: KASAN: slab-out-of-bounds in fscache_set_key fs/fscache/cookie.c:120 [inline] # BUG: KASAN: slab-out-of-bounds in fscache_alloc_cookie+0x7a9/0x880 fs/fscache/cookie.c:171 # Read of size 4 at addr ffff8801d3cc8bb4 by task syz-executor907/4466 # # This happens for any index_key_len which is not divisible by 4 and is # larger than the size of the inline key, because the code allocates exactly # index_key_len for the key buffer, but the hashing loop is stepping through # it 4 bytes (u32) at a time in the buf[] array. # # Fix this by calculating how many u32 buffers we'll need by using # DIV_ROUND_UP, and then using kcalloc() to allocate a precleared allocation # buffer to hold the index_key, then using that same count as the hashing # index limit. # # Fixes: ec0328e46d6e ("fscache: Maintain a catalogue of allocated cookies") # Reported-by: syzbot+a95b989b2dde8e806af8@syzkaller.appspotmail.com # Signed-off-by: Eric Sandeen <sandeen@redhat.com> # Cc: stable <stable@vger.kernel.org> # Signed-off-by: David Howells <dhowells@redhat.com> # Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version # < git log --format=%s --max-count=1 fa520c47eaa15b9baa8ad66ac18da4a31679693b # < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # yes \n \| make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- oldconfig yes: standard output: Broken pipe # make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/s390/crypto/aes_s390.c: In function 'fallback_blk_dec': /kisskb/src/arch/s390/crypto/aes_s390.c:217:1: warning: 'fallback_blk_dec' uses dynamic stack allocation [enabled by default] /kisskb/src/arch/s390/crypto/aes_s390.c: In function 'fallback_blk_enc': /kisskb/src/arch/s390/crypto/aes_s390.c:234:1: warning: 'fallback_blk_enc' uses dynamic stack allocation [enabled by default] /kisskb/src/arch/s390/crypto/aes_s390.c: In function 'xts_fallback_decrypt': /kisskb/src/arch/s390/crypto/aes_s390.c:486:1: warning: 'xts_fallback_decrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/arch/s390/crypto/aes_s390.c: In function 'xts_fallback_encrypt': /kisskb/src/arch/s390/crypto/aes_s390.c:505:1: warning: 'xts_fallback_encrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/security/keys/encrypted-keys/encrypted.c: In function 'calc_hash': /kisskb/src/security/keys/encrypted-keys/encrypted.c:337:1: warning: 'calc_hash' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_log_throttle': /kisskb/src/kernel/events/core.c:7651:1: warning: 'perf_log_throttle' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_swevent_hrtimer': /kisskb/src/kernel/events/core.c:9134:1: warning: 'perf_swevent_hrtimer' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_log_itrace_start': /kisskb/src/kernel/events/core.c:7692:1: warning: 'perf_log_itrace_start' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_event_read_event': /kisskb/src/kernel/events/core.c:6581:1: warning: 'perf_event_read_event' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_event_task_output': /kisskb/src/kernel/events/core.c:6860:1: warning: 'perf_event_task_output' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_event_mmap_output': /kisskb/src/kernel/events/core.c:7216:1: warning: 'perf_event_mmap_output' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_event_namespaces_output': /kisskb/src/kernel/events/core.c:7053:1: warning: 'perf_event_namespaces_output' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_event_comm_output': /kisskb/src/kernel/events/core.c:6954:1: warning: 'perf_event_comm_output' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_event_switch_output': /kisskb/src/kernel/events/core.c:7580:1: warning: 'perf_event_switch_output' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:185:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/events/core.c: In function 'perf_event_aux_event': /kisskb/src/kernel/events/core.c:7488:1: warning: 'perf_event_aux_event' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_log_lost_samples': /kisskb/src/kernel/events/core.c:7521:1: warning: 'perf_log_lost_samples' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function 'perf_tp_event': /kisskb/src/kernel/events/core.c:8331:1: warning: 'perf_tp_event' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/core.c: In function '___perf_sw_event': /kisskb/src/kernel/events/core.c:8017:1: warning: '___perf_sw_event' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin_forward': /kisskb/src/kernel/events/ring_buffer.c:238:1: warning: 'perf_output_begin_forward' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin_backward': /kisskb/src/kernel/events/ring_buffer.c:244:1: warning: 'perf_output_begin_backward' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/events/ring_buffer.c: In function 'perf_output_begin': /kisskb/src/kernel/events/ring_buffer.c:252:1: warning: 'perf_output_begin' uses dynamic stack allocation [enabled by default] /kisskb/src/security/integrity/ima/ima_crypto.c: In function 'calc_buffer_shash_tfm': /kisskb/src/security/integrity/ima/ima_crypto.c:600:1: warning: 'calc_buffer_shash_tfm' uses dynamic stack allocation [enabled by default] /kisskb/src/security/integrity/ima/ima_crypto.c: In function 'ima_calc_boot_aggregate_tfm': /kisskb/src/security/integrity/ima/ima_crypto.c:667:1: warning: 'ima_calc_boot_aggregate_tfm' uses dynamic stack allocation [enabled by default] /kisskb/src/security/integrity/ima/ima_crypto.c: In function 'ima_calc_file_hash_tfm': /kisskb/src/security/integrity/ima/ima_crypto.c:388:1: warning: 'ima_calc_file_hash_tfm' uses dynamic stack allocation [enabled by default] /kisskb/src/security/integrity/ima/ima_crypto.c: In function 'ima_calc_field_array_hash_tfm.isra.3': /kisskb/src/security/integrity/ima/ima_crypto.c:493:1: warning: 'ima_calc_field_array_hash_tfm.isra.3' uses dynamic stack allocation [enabled by default] /kisskb/src/arch/s390/kernel/perf_cpum_sf.c: In function 'perf_push_sample': /kisskb/src/arch/s390/kernel/perf_cpum_sf.c:1075:1: warning: 'perf_push_sample' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/atm/ambassador.c: In function 'do_loader_command': /kisskb/src/drivers/atm/ambassador.c:1762:3: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct loader_block ' /kisskb/src/fs/afs/dynroot.c: In function 'afs_lookup_atcell': /kisskb/src/fs/afs/dynroot.c:126:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/security/apparmor/crypto.c: In function 'aa_calc_hash': /kisskb/src/security/apparmor/crypto.c:64:1: warning: 'aa_calc_hash' uses dynamic stack allocation [enabled by default] /kisskb/src/security/apparmor/crypto.c: In function 'aa_calc_profile_hash': /kisskb/src/security/apparmor/crypto.c:106:1: warning: 'aa_calc_profile_hash' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/seqiv.c: In function 'seqiv_aead_encrypt': /kisskb/src/crypto/seqiv.c:115:1: warning: 'seqiv_aead_encrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/shash.c: In function 'shash_final_unaligned': /kisskb/src/crypto/shash.c:141:1: warning: 'shash_final_unaligned' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/shash.c: In function 'shash_update_unaligned': /kisskb/src/crypto/shash.c:105:1: warning: 'shash_update_unaligned' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2511:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1833:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/crypto/hmac.c: In function 'hmac_setkey': /kisskb/src/crypto/hmac.c:88:1: warning: 'hmac_setkey' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/block/drbd/drbd_worker.c: In function 'drbd_csum_ee': /kisskb/src/drivers/block/drbd/drbd_worker.c:325:1: warning: 'drbd_csum_ee' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/block/drbd/drbd_worker.c: In function 'drbd_csum_bio': /kisskb/src/drivers/block/drbd/drbd_worker.c:352:1: warning: 'drbd_csum_bio' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/cbc.c: In function 'crypto_cbc_decrypt': /kisskb/src/crypto/cbc.c:79:1: warning: 'crypto_cbc_decrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/gcm.c: In function 'crypto_rfc4543_copy_src_to_dst': /kisskb/src/crypto/gcm.c:1077:1: warning: 'crypto_rfc4543_copy_src_to_dst' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/echainiv.c: In function 'echainiv_encrypt': /kisskb/src/crypto/echainiv.c:88:1: warning: 'echainiv_encrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/block/drbd/drbd_receiver.c: In function 'drbd_do_auth': /kisskb/src/drivers/block/drbd/drbd_receiver.c:5400:1: warning: 'drbd_do_auth' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/xcbc.c: In function 'crypto_xcbc_digest_setkey': /kisskb/src/crypto/xcbc.c:79:1: warning: 'crypto_xcbc_digest_setkey' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/smp.c: In function 'smp_call_function_single': /kisskb/src/kernel/smp.c:307:1: warning: 'smp_call_function_single' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': /kisskb/src/include/asm-generic/io.h:232:15: warning: 'px_is' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/ata/ahci_qoriq.c:86:14: note: 'px_is' was declared here /kisskb/src/include/asm-generic/io.h:232:15: warning: 'px_cmd' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/ata/ahci_qoriq.c:86:6: note: 'px_cmd' was declared here /kisskb/src/crypto/ccm.c: In function 'crypto_ccm_auth': /kisskb/src/crypto/ccm.c:235:1: warning: 'crypto_ccm_auth' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/rseq.c: In function 'rseq_ip_fixup': /kisskb/src/kernel/rseq.c:249:1: warning: 'rseq_ip_fixup' uses dynamic stack allocation [enabled by default] /kisskb/src/kernel/rseq.c: In function 'rseq_syscall': /kisskb/src/kernel/rseq.c:301:1: warning: 'rseq_syscall' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/cryptd.c: In function 'cryptd_skcipher_decrypt': /kisskb/src/crypto/cryptd.c:533:1: warning: 'cryptd_skcipher_decrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/cryptd.c: In function 'cryptd_skcipher_encrypt': /kisskb/src/crypto/cryptd.c:505:1: warning: 'cryptd_skcipher_encrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/fs/crypto/keyinfo.c: In function 'derive_essiv_salt': /kisskb/src/fs/crypto/keyinfo.c:250:1: warning: 'derive_essiv_salt' uses dynamic stack allocation [enabled by default] /kisskb/src/fs/ecryptfs/crypto.c: In function 'ecryptfs_hash_digest': /kisskb/src/fs/ecryptfs/crypto.c:75:1: warning: 'ecryptfs_hash_digest' uses dynamic stack allocation [enabled by default] /kisskb/src/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.2': /kisskb/src/fs/btrfs/ref-verify.c:503:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/btrfs/ref-verify.c: In function 'process_leaf.isra.3': /kisskb/src/fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write': /kisskb/src/sound/hda/hdac_regmap.c:282:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/slub.c: In function 'deactivate_slab.isra.50': /kisskb/src/mm/slub.c:2132:1: warning: 'deactivate_slab.isra.50' uses dynamic stack allocation [enabled by default] /kisskb/src/mm/slub.c: In function 'unfreeze_partials.isra.51': /kisskb/src/mm/slub.c:2200:1: warning: 'unfreeze_partials.isra.51' uses dynamic stack allocation [enabled by default] /kisskb/src/mm/slub.c: In function 'get_partial_node.isra.52': /kisskb/src/mm/slub.c:1832:1: warning: 'get_partial_node.isra.52' uses dynamic stack allocation [enabled by default] /kisskb/src/mm/slub.c: In function '___slab_alloc': /kisskb/src/mm/slub.c:2587:1: warning: '___slab_alloc' uses dynamic stack allocation [enabled by default] /kisskb/src/mm/slub.c: In function '__slab_free': /kisskb/src/mm/slub.c:2888:1: warning: '__slab_free' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/authenc.c: In function 'crypto_authenc_copy_assoc': /kisskb/src/crypto/authenc.c:197:1: warning: 'crypto_authenc_copy_assoc' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/authencesn.c: In function 'crypto_authenc_esn_copy': /kisskb/src/crypto/authencesn.c:194:1: warning: 'crypto_authenc_esn_copy' uses dynamic stack allocation [enabled by default] /kisskb/src/crypto/algif_hash.c: In function 'hash_accept': /kisskb/src/crypto/algif_hash.c:276:1: warning: 'hash_accept' uses dynamic stack allocation [enabled by default] /kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents': /kisskb/src/fs/f2fs/file.c:2871:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/crypto/algif_aead.c: In function 'crypto_aead_copy_sgl': /kisskb/src/crypto/algif_aead.c:90:1: warning: 'crypto_aead_copy_sgl' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/block/cryptoloop.c: In function 'cryptoloop_transfer': /kisskb/src/drivers/block/cryptoloop.c:167:1: warning: 'cryptoloop_transfer' uses dynamic stack allocation [enabled by default] /kisskb/src/lib/test_ubsan.c: In function 'test_ubsan_out_of_bounds': /kisskb/src/lib/test_ubsan.c:67:1: warning: 'test_ubsan_out_of_bounds' uses dynamic stack allocation [enabled by default] /kisskb/src/lib/test_ubsan.c: In function 'test_ubsan_vla_bound_not_positive': /kisskb/src/lib/test_ubsan.c:51:1: warning: 'test_ubsan_vla_bound_not_positive' uses dynamic stack allocation [enabled by default] /kisskb/src/lib/test_ubsan.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'query_info': /kisskb/src/drivers/s390/net/ism_drv.c:84:1: warning: 'query_info' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'register_sba': /kisskb/src/drivers/s390/net/ism_drv.c:111:1: warning: 'register_sba' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'register_ieq': /kisskb/src/drivers/s390/net/ism_drv.c:140:1: warning: 'register_ieq' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_query_rgid': /kisskb/src/drivers/s390/net/ism_drv.c:209:1: warning: 'ism_query_rgid' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_unregister_dmb': /kisskb/src/drivers/s390/net/ism_drv.c:297:1: warning: 'ism_unregister_dmb' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_add_vlan_id': /kisskb/src/drivers/s390/net/ism_drv.c:311:1: warning: 'ism_add_vlan_id' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_del_vlan_id': /kisskb/src/drivers/s390/net/ism_drv.c:325:1: warning: 'ism_del_vlan_id' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_signal_ieq': /kisskb/src/drivers/s390/net/ism_drv.c:353:1: warning: 'ism_signal_ieq' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_dev_init': /kisskb/src/drivers/s390/net/ism_drv.c:487:1: warning: 'ism_dev_init' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/s390/net/ism_drv.c: In function 'ism_register_dmb': /kisskb/src/drivers/s390/net/ism_drv.c:276:1: warning: 'ism_register_dmb' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/ccree/cc_cipher.c: In function 'cc_cipher_setkey': /kisskb/src/drivers/crypto/ccree/cc_cipher.c:383:1: warning: 'cc_cipher_setkey' uses dynamic stack allocation [enabled by default] /kisskb/src/lib/libcrc32c.c: In function 'crc32c': /kisskb/src/lib/libcrc32c.c:59:1: warning: 'crc32c' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/chelsio/chtls/chtls_cm.c: In function 'wait_for_states.constprop.22': /kisskb/src/drivers/crypto/chelsio/chtls/chtls_cm.c:405:1: warning: 'wait_for_states.constprop.22' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_replace': /kisskb/src/drivers/dma-buf/reservation.c:208:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma-buf/reservation.c:211:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/arizona.c: In function 'arizona_hw_params': /kisskb/src/sound/soc/codecs/arizona.c:1893:3: warning: 'aif_rx_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/arizona.c:1890:3: warning: 'aif_tx_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/crypto/mediatek/mtk-sha.c: In function 'mtk_sha_setkey': /kisskb/src/drivers/crypto/mediatek/mtk-sha.c:834:1: warning: 'mtk_sha_setkey' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/mediatek/mtk-sha.c: In function 'mtk_sha_finish_hmac': /kisskb/src/drivers/crypto/mediatek/mtk-sha.c:373:1: warning: 'mtk_sha_finish_hmac' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/chelsio/chcr_algo.c: In function 'chcr_cipher_fallback': /kisskb/src/drivers/crypto/chelsio/chcr_algo.c:699:1: warning: 'chcr_cipher_fallback' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/chelsio/chcr_algo.c: In function 'chcr_ahash_setkey': /kisskb/src/drivers/crypto/chelsio/chcr_algo.c:2081:1: warning: 'chcr_ahash_setkey' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/chelsio/chcr_algo.c: In function 'chcr_authenc_setkey': /kisskb/src/drivers/crypto/chelsio/chcr_algo.c:3496:1: warning: 'chcr_authenc_setkey' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/crypto/qce/ablkcipher.c: In function 'qce_ablkcipher_crypt': /kisskb/src/drivers/crypto/qce/ablkcipher.c:229:1: warning: 'qce_ablkcipher_crypt' uses dynamic stack allocation [enabled by default] /kisskb/src/sound/soc/codecs/da7219-aad.c: In function 'da7219_aad_hptest_work': /kisskb/src/sound/soc/codecs/da7219-aad.c:321:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/crypto/s5p-sss.c: In function 's5p_hash_shash_digest': /kisskb/src/drivers/crypto/s5p-sss.c:1534:1: warning: 's5p_hash_shash_digest' uses dynamic stack allocation [enabled by default] /kisskb/src/net/bridge/netfilter/ebtables.c: In function 'compat_copy_everything_to_user': /kisskb/src/net/bridge/netfilter/ebtables.c:1906:1: warning: 'compat_copy_everything_to_user' uses dynamic stack allocation [enabled by default] /kisskb/src/sound/soc/codecs/rt5665.c: In function 'rt5665_i2s_pin_event': /kisskb/src/sound/soc/codecs/rt5665.c:2666:33: warning: 'val2' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/rt5665.c:2663:33: warning: 'val1' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info': /kisskb/src/net/bridge/br_netlink.c:589:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2069:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c:2074:42: warning: 'end' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4recover.c: In function 'nfs4_make_rec_clidname': /kisskb/src/fs/nfsd/nfs4recover.c:147:1: warning: 'nfs4_make_rec_clidname' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c: In function 'amdgpu_set_pp_od_clk_voltage': /kisskb/src/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:546:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfs/super.c: In function 'nfs_show_stats': /kisskb/src/fs/nfs/super.c:890:1: warning: 'nfs_show_stats' uses dynamic stack allocation [enabled by default] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:341:21: note: 'pdeo' was declared here /kisskb/src/drivers/input/joystick/analog.c:172:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] /kisskb/src/net/ceph/crypto.c: In function 'ceph_aes_crypt.isra.4': /kisskb/src/net/ceph/crypto.c:278:1: warning: 'ceph_aes_crypt.isra.4' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery': /kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function '__arm_v7s_map.constprop.5': /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:438:7: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/infiniband/sw/rxe/rxe_req.c: In function 'fill_packet.isra.33': /kisskb/src/drivers/infiniband/sw/rxe/rxe_req.c:506:1: warning: 'fill_packet.isra.33' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/infiniband/sw/rxe/rxe_recv.c: In function 'rxe_rcv': /kisskb/src/drivers/infiniband/sw/rxe/rxe_recv.c:423:1: warning: 'rxe_rcv' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/infiniband/sw/rxe/rxe_mr.c: In function 'rxe_mem_copy': /kisskb/src/drivers/infiniband/sw/rxe/rxe_mr.c:431:1: warning: 'rxe_mem_copy' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/infiniband/sw/rxe/rxe_icrc.c: In function 'rxe_icrc_hdr': /kisskb/src/drivers/infiniband/sw/rxe/rxe_icrc.c:96:1: warning: 'rxe_icrc_hdr' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c: In function 'gmc_v8_0_process_interrupt': /kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1447:10: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1447:10: warning: (near initialization for 'task_info.process_name') [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c: In function 'gmc_v9_0_process_interrupt': /kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:262:10: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:262:10: warning: (near initialization for 'task_info.process_name') [-Wmissing-braces] /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c: In function 'gk104_top_oneinit': /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:102:1: warning: 'inst' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c:102:1: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/md/dm-crypt.c: In function 'crypt_iv_essiv_init': /kisskb/src/drivers/md/dm-crypt.c:350:1: warning: 'crypt_iv_essiv_init' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/iio/proximity/isl29501.c: In function 'isl29501_register_write': /kisskb/src/drivers/iio/proximity/isl29501.c:253:7: warning: 'msb' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/md/dm-crypt.c: In function 'crypt_iv_tcw_whitening.isra.25': /kisskb/src/drivers/md/dm-crypt.c:792:1: warning: 'crypt_iv_tcw_whitening.isra.25' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-crypt.c: In function 'crypt_iv_lmk_one.isra.26': /kisskb/src/drivers/md/dm-crypt.c:645:1: warning: 'crypt_iv_lmk_one.isra.26' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-verity-fec.c: In function 'fec_read_bufs': /kisskb/src/drivers/md/dm-verity-fec.c:301:1: warning: 'fec_read_bufs' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-integrity.c: In function 'integrity_sector_checksum': /kisskb/src/drivers/md/dm-integrity.c:1311:1: warning: 'integrity_sector_checksum' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-integrity.c: In function 'integrity_metadata': /kisskb/src/drivers/md/dm-integrity.c:1415:1: warning: 'integrity_metadata' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-integrity.c: In function 'section_mac': /kisskb/src/drivers/md/dm-integrity.c:574:1: warning: 'section_mac' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-integrity.c: In function '__journal_read_write': /kisskb/src/drivers/md/dm-integrity.c:1648:1: warning: '__journal_read_write' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/md/dm-integrity.c: In function 'do_journal_write': /kisskb/src/drivers/md/dm-integrity.c:2060:1: warning: 'do_journal_write' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/nfc/s3fwrn5/firmware.c: In function 's3fwrn5_fw_download': /kisskb/src/drivers/nfc/s3fwrn5/firmware.c:501:1: warning: 's3fwrn5_fw_download' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/nvme/host/lightnvm.c: In function 'nvme_nvm_get_chk_meta': /kisskb/src/drivers/nvme/host/lightnvm.c:625:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/pinctrl/cirrus/pinctrl-madera-core.c: In function 'madera_mux_set_mux': /kisskb/src/drivers/pinctrl/cirrus/pinctrl-madera-core.c:659:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/pinctrl/cirrus/pinctrl-madera-core.c:660:3: warning: 'reg' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/soc/qcom/rpmh.c: In function 'rpmh_write_batch': /kisskb/src/drivers/soc/qcom/rpmh.c:355:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/target/iscsi/cxgbit/cxgbit_target.c: In function 'cxgbit_tx_datain_iso.isra.32': /kisskb/src/drivers/target/iscsi/cxgbit/cxgbit_target.c:501:1: warning: 'cxgbit_tx_datain_iso.isra.32' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/target/iscsi/iscsi_target.c: In function 'iscsit_send_datain': /kisskb/src/drivers/target/iscsi/iscsi_target.c:2851:1: warning: 'iscsit_send_datain' uses dynamic stack allocation [enabled by default] /kisskb/src/net/ncsi/ncsi-manage.c: In function 'set_one_vid': /kisskb/src/net/ncsi/ncsi-manage.c:625:19: warning: 'vid' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac802154/llsec.c: In function 'llsec_do_decrypt_unauth.isra.3': /kisskb/src/net/mac802154/llsec.c:859:1: warning: 'llsec_do_decrypt_unauth.isra.3' uses dynamic stack allocation [enabled by default] /kisskb/src/net/mac802154/llsec.c: In function 'llsec_do_encrypt_unauth.isra.4': /kisskb/src/net/mac802154/llsec.c:641:1: warning: 'llsec_do_encrypt_unauth.isra.4' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/ppp/ppp_mppe.c: In function 'mppe_rekey': /kisskb/src/drivers/net/ppp/ppp_mppe.c:186:1: warning: 'mppe_rekey' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/ppp/ppp_mppe.c: In function 'mppe_decompress': /kisskb/src/drivers/net/ppp/ppp_mppe.c:670:1: warning: 'mppe_decompress' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/ppp/ppp_mppe.c: In function 'mppe_compress': /kisskb/src/drivers/net/ppp/ppp_mppe.c:445:1: warning: 'mppe_compress' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c: In function 'pctv452e_frontend_attach': /kisskb/src/drivers/media/usb/dvb-usb/pctv452e.c:922:2: warning: value computed is not used [-Wunused-value] /kisskb/src/net/sctp/sm_make_chunk.c: In function 'sctp_pack_cookie.isra.9': /kisskb/src/net/sctp/sm_make_chunk.c:1700:1: warning: 'sctp_pack_cookie.isra.9' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sctp/sm_make_chunk.c: In function 'sctp_unpack_cookie': /kisskb/src/net/sctp/sm_make_chunk.c:1877:1: warning: 'sctp_unpack_cookie' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/wan/lmc/lmc_main.c: In function 'lmc_softreset': /kisskb/src/drivers/net/wan/lmc/lmc_main.c:1852:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct tulip_desc_t ' /kisskb/src/drivers/net/wan/lmc/lmc_main.c:1861:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct tulip_desc_t ' /kisskb/src/drivers/net/wan/lmc/lmc_main.c:1863:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct tulip_desc_t ' /kisskb/src/drivers/net/wan/lmc/lmc_main.c:1874:9: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct tulip_desc_t ' /kisskb/src/drivers/net/wan/lmc/lmc_main.c:1876:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct tulip_desc_t ' /kisskb/src/drivers/net/wan/lmc/lmc_main.c:1877:5: warning: passing argument 1 of 'virt_to_bus' discards 'volatile' qualifier from pointer target type [enabled by default] /kisskb/src/include/asm-generic/io.h:1074:29: note: expected 'void ' but argument is of type 'volatile struct tulip_desc_t ' /kisskb/src/net/sctp/auth.c: In function 'sctp_auth_calculate_hmac': /kisskb/src/net/sctp/auth.c:778:1: warning: 'sctp_auth_calculate_hmac' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'gss_krb5_cts_crypt': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:728:1: warning: 'gss_krb5_cts_crypt' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'krb5_encrypt': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:91:1: warning: 'krb5_encrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'krb5_decrypt': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:129:1: warning: 'krb5_decrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'gss_encrypt_xdr_buf': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:555:1: warning: 'gss_encrypt_xdr_buf' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'gss_decrypt_xdr_buf': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:634:1: warning: 'gss_decrypt_xdr_buf' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'gss_krb5_aes_encrypt': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:849:1: warning: 'gss_krb5_aes_encrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c: In function 'gss_krb5_aes_decrypt': /kisskb/src/net/sunrpc/auth_gss/gss_krb5_crypto.c:942:1: warning: 'gss_krb5_aes_decrypt' uses dynamic stack allocation [enabled by default] /kisskb/src/net/rxrpc/rxkad.c: In function 'rxkad_prime_packet_security': /kisskb/src/net/rxrpc/rxkad.c:141:1: warning: 'rxkad_prime_packet_security' uses dynamic stack allocation [enabled by default] /kisskb/src/net/rxrpc/rxkad.c: In function 'rxkad_verify_packet': /kisskb/src/net/rxrpc/rxkad.c:564:1: warning: 'rxkad_verify_packet' uses dynamic stack allocation [enabled by default] /kisskb/src/net/rxrpc/rxkad.c: In function 'rxkad_decrypt_response.isra.6': /kisskb/src/net/rxrpc/rxkad.c:1051:1: warning: 'rxkad_decrypt_response.isra.6' uses dynamic stack allocation [enabled by default] /kisskb/src/net/rxrpc/rxkad.c: In function 'rxkad_encrypt_response.isra.7': /kisskb/src/net/rxrpc/rxkad.c:772:1: warning: 'rxkad_encrypt_response.isra.7' uses dynamic stack allocation [enabled by default] /kisskb/src/net/rxrpc/rxkad.c: In function 'rxkad_secure_packet': /kisskb/src/net/rxrpc/rxkad.c:313:1: warning: 'rxkad_secure_packet' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1794:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1704:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/sunrpc/stats.c: In function 'rpc_clnt_show_stats': /kisskb/src/net/sunrpc/stats.c:268:1: warning: 'rpc_clnt_show_stats' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/usb/wusbcore/crypto.c: In function 'wusb_ccm_mac': /kisskb/src/drivers/usb/wusbcore/crypto.c:286:1: warning: 'wusb_ccm_mac' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c: In function 'mvpp2_setup_bm_pool': /kisskb/src/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c:545:41: warning: overflow in implicit constant conversion [-Woverflow] /kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c: In function 'hclgevf_bind_ring_to_vector': /kisskb/src/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c:609:16: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/ethernet/neterion/vxge/vxge-config.c: In function 'vxge_hw_device_hw_info_get': /kisskb/src/drivers/net/ethernet/neterion/vxge/vxge-config.c:1088:1: warning: 'vxge_hw_device_hw_info_get' uses dynamic stack allocation [enabled by default] /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c: In function 'update_root_ft_create': /kisskb/src/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c:815:5: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/scripts/unifdef.c: In function 'Mpass': /kisskb/src/scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] static void Mpass (void) { strncpy(keyword, "if ", 4); Pelif(); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Completed OK # rm -rf /kisskb/build/linus_s390-allmodconfig_s390x # Build took: 0:09:35.553183

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