# git rev-parse -q --verify 8bd72f8f7c64c22a621801a76c9423932844e014^{commit} 8bd72f8f7c64c22a621801a76c9423932844e014 already have revision, skipping fetch # git checkout -q -f -B kisskb 8bd72f8f7c64c22a621801a76c9423932844e014 # git clean -qxdf # < git log -1 # commit 8bd72f8f7c64c22a621801a76c9423932844e014 # Author: Mauricio Faria de Oliveira # Date: Fri Mar 30 14:28:25 2018 -0300 # # powerpc/pseries: Restore default security feature flags on setup # # After migration the security feature flags might have changed (e.g., # destination system with unpatched firmware), but some flags are not # set/clear again in init_cpu_char_feature_flags() because it assumes # the security flags to be the defaults. # # Additionally, if the H_GET_CPU_CHARACTERISTICS hypercall fails then # init_cpu_char_feature_flags() does not run again, which potentially # might leave the system in an insecure or sub-optimal configuration. # # So, just restore the security feature flags to the defaults assumed # by init_cpu_char_feature_flags() so it can set/clear them correctly, # and to ensure safe settings are in place in case the hypercall fail. # # Fixes: f636c14790ea ("powerpc/pseries: Set or clear security feature flags") # Depends-on: 19887d6a28e2 ("powerpc: Move default security feature flags") # Signed-off-by: Mauricio Faria de Oliveira # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 8bd72f8f7c64c22a621801a76c9423932844e014 # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0x33BE984C # 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 40 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe yes: write error # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-randconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/ipc/shm.c: In function 'SyS_shmdt': /kisskb/src/ipc/shm.c:1565:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/ipc/shm.c:1487:15: note: 'file' was declared here /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/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rhashtable_rehash_one': /kisskb/src/lib/rhashtable.c:269:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /kisskb/src/net/core/gen_stats.c:149:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/flow_dissector.c: In function '__skb_flow_dissect': /kisskb/src/net/core/flow_dissector.c:789:7: warning: 'vlan' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/time/tick-sched.c: In function 'tick_nohz_idle_exit': /kisskb/src/kernel/time/tick-sched.c:1074:31: warning: 'now' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_replace': /kisskb/src/drivers/dma-buf/reservation.c:210:7: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list': /kisskb/src/net/core/dev.c:3149:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/ksm.c: In function 'stable_node_dup': /kisskb/src/mm/ksm.c:1358:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/hwspinlock/hwspinlock_core.c: In function 'of_hwspin_lock_get_id': /kisskb/src/drivers/hwspinlock/hwspinlock_core.c:301:6: warning: 'id' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma/sh/rcar-dmac.c: In function 'rcar_dmac_chan_prep_sg': /kisskb/src/drivers/dma/sh/rcar-dmac.c:939:23: warning: 'high_mem_addr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/dma/sh/rcar-dmac.c:938:23: warning: 'high_dev_addr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/rmi4/rmi_f11.c: In function 'rmi_f11_finger_handler': /kisskb/src/drivers/input/rmi4/rmi_f11.c:631:3: warning: 'abs_fingers' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/mouse/cyapa.c: In function 'cyapa_irq': /kisskb/src/drivers/input/mouse/cyapa.c:717:27: warning: 'error' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/mouse/cyapa_gen3.c: In function 'cyapa_gen3_set_power_mode': /kisskb/src/drivers/input/mouse/cyapa_gen3.c:927:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/adc/qcom-pm8xxx-xoadc.c: In function 'pm8xxx_get_channel': /kisskb/src/drivers/iio/adc/qcom-pm8xxx-xoadc.c:426:27: warning: 'ch' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/tipc/socket.c: In function 'tipc_recvmsg': /kisskb/src/net/tipc/socket.c:1694:27: warning: 'copy' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/mtd/ubi/eba.c: In function 'try_write_vid_and_data': /kisskb/src/drivers/mtd/ubi/eba.c:898:7: warning: 'opnum' may be used uninitialized in this function [-Wuninitialized] WARNING: vmlinux.o(.text+0x27eb4): Section mismatch in reference from the function .fsl_add_bridge() to the function .init.text:.setup_pci_cmd() The function .fsl_add_bridge() references the function __init .setup_pci_cmd(). This is often because .fsl_add_bridge lacks a __init annotation or the annotation of .setup_pci_cmd is wrong. WARNING: 4 bad relocations c00000000001339a R_PPC64_ADDR16_HIGHEST .head.text+0x00000000000133b4 c00000000001339e R_PPC64_ADDR16_HIGHER .head.text+0x00000000000133b4 c0000000000133a6 R_PPC64_ADDR16_HI .head.text+0x00000000000133b4 c0000000000133aa R_PPC64_ADDR16_LO .head.text+0x00000000000133b4 Completed OK # rm -rf /kisskb/build/powerpc-next_powerpc-randconfig_powerpc # Build took: 0:01:02.886715