# git rev-parse -q --verify 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71^{commit} 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71 already have revision, skipping fetch # git checkout -q -f -B kisskb 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71 # git clean -qxdf # < git log -1 # commit 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71 # Author: Linus Torvalds # Date: Tue Jun 15 09:26:19 2021 -0700 # # proc: only require mm_struct for writing # # Commit 591a22c14d3f ("proc: Track /proc/$pid/attr/ opener mm_struct") we # started using __mem_open() to track the mm_struct at open-time, so that # we could then check it for writes. # # But that also ended up making the permission checks at open time much # stricter - and not just for writes, but for reads too. And that in turn # caused a regression for at least Fedora 29, where NIC interfaces fail to # start when using NetworkManager. # # Since only the write side wanted the mm_struct test, ignore any failures # by __mem_open() at open time, leaving reads unaffected. The write() # time verification of the mm_struct pointer will then catch the failure # case because a NULL pointer will not match a valid 'current->mm'. # # Link: https://lore.kernel.org/netdev/YMjTlp2FSJYvoyFa@unreal/ # Fixes: 591a22c14d3f ("proc: Track /proc/$pid/attr/ opener mm_struct") # Reported-and-tested-by: Leon Romanovsky # Cc: Kees Cook # Cc: Christian Brauner # Cc: Andrea Righi # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71 # < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- randconfig # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- help # make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- olddefconfig .config:6988:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD # make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- /kisskb/src/arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum /kisskb/src/arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:27, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/latent_entropy_plugin.c:78: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\ ^ /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:44, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/latent_entropy_plugin.c:78: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:27, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/structleak_plugin.c:32: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\ ^ /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:44, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/structleak_plugin.c:32: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:27, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/stackleak_plugin.c:30: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\ ^ /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:44, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/stackleak_plugin.c:30: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:27, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/randomize_layout_plugin.c:19: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:102:21: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\ ^ /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/config/elfos.h:170:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ In file included from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/tm.h:44, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/gcc-plugin.h:31, from /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/plugin.h:23, from /kisskb/src/scripts/gcc-plugins/gcc-common.h:9, from /kisskb/src/scripts/gcc-plugins/randomize_layout_plugin.c:19: /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/../lib/gcc/aarch64-buildroot-linux-gnu/5.4.0/plugin/include/defaults.h:126:24: warning: invalid suffix on literal; C++11 requires a space between literal and string macro [-Wliteral-suffix] fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ ^ cc1plus: warning: unrecognized command line option '-Wno-format-diag' cc1plus: warning: unrecognized command line option '-Wno-format-diag' cc1plus: warning: unrecognized command line option '-Wno-format-diag' cc1plus: warning: unrecognized command line option '-Wno-format-diag' Completed OK # rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 # Build took: 0:04:40.835249