# git rev-parse -q --verify 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9^{commit} 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9 already have revision, skipping fetch # git checkout -q -f -B kisskb 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9 # git clean -qxdf # < git log -1 # commit 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9 # Author: Ram Pai # Date: Mon Dec 3 12:43:22 2018 -0800 # # powerpc/pkeys: Copy pkey-tracking-information at fork() # # At fork(), the pkey tracking information is not copied over to the # mm_struct of the child. This can cause the child to erroneously # allocate keys that were already allocated. Any allocated execute-only # key is lost as well. # # Add code; called by dup_mmap(), to copy the pkey state from parent to # child explicitly. # # This problem was originally found by Dave Hansen on x86, which turns # out to be a problem on powerpc as well. # # Fixes: cf43d3b26452 ("powerpc: Enable pkey subsystem") # Cc: stable@vger.kernel.org # v4.16+ # Signed-off-by: Ram Pai # Reviewed-by: Thiago Jung Bauermann # [mpe: Return early if pkey_disabled is true] # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 416b2bfbaccf8fd50c8e77778bd47f95f12f13d9 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0xAA3774DF # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig # yes \n | make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents': /kisskb/src/fs/f2fs/file.c:2926:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/file.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.5': /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': /kisskb/src/fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/btrfs/ref-verify.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [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/fs/proc/inode.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/fs/f2fs/segment.c: In function 'f2fs_flush_sit_entries': /kisskb/src/fs/f2fs/segment.c:3784:5: warning: array subscript is below array bounds [-Warray-bounds] /kisskb/src/fs/f2fs/segment.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info.isra.25': /kisskb/src/net/bridge/br_netlink.c:589:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/ncsi/ncsi-manage.c: In function 'set_one_vid': /kisskb/src/net/ncsi/ncsi-manage.c:626:5: warning: 'vid' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/ata/ahci_qoriq.c: In function 'ahci_qoriq_hardreset': /kisskb/src/arch/powerpc/include/asm/io.h:162:1: 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/arch/powerpc/include/asm/io.h:162:1: 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/drivers/ata/ahci_qoriq.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/ncsi/ncsi-manage.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/net/core/rtnetlink.c: In function 'rtnl_newlink': /kisskb/src/net/core/rtnetlink.c:3224:1: warning: the frame size of 1248 bytes is larger than 1024 bytes [-Wframe-larger-than=] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/rtnetlink.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/base/regmap/regmap.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [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/drivers/dma-buf/reservation.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [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/i2c/i2c-core-base.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/staging/comedi/drivers/pcl816.c: In function 'pcl816_ai_setup_chanlist': /kisskb/src/drivers/staging/comedi/drivers/pcl816.c:148:6: warning: 'last_chan' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/comedi/drivers/pcl816.c:157:15: note: 'last_chan' was declared here /kisskb/src/drivers/staging/comedi/drivers/pcl816.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /kisskb/src/drivers/staging/comedi/drivers/pcl818.c: In function 'pcl818_ai_setup_chanlist': /kisskb/src/drivers/staging/comedi/drivers/pcl818.c:337:6: warning: 'last_chan' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/staging/comedi/drivers/pcl818.c:347:15: note: 'last_chan' was declared here /kisskb/src/drivers/staging/comedi/drivers/pcl818.c: At top level: cc1: warning: unrecognized command line option "-Wno-maybe-uninitialized" [enabled by default] /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(); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~ ./usr/include/linux/v4l2-controls.h:1105: found __[us]{8,16,32,64} type without #include Completed OK # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc # Build took: 0:02:40.610503