Buildresult: linus/axs103_smp_defconfig/arc-gcc10 built on Jun 16 2021, 06:12

kisskb

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Status:	OK
Date/Time:	Jun 16 2021, 06:12
Duration:	0:01:32.091616
Builder:	blade4b
Revision:	proc: only require mm_struct for writing (`94f0b2d4a1d0c52035aef425da5e022bd2cb1c71)`
Target:	linus/axs103_smp_defconfig/arc-gcc10
Branch:	linus
Compiler:	arc-gcc10 (arc-linux-gcc (GCC) 10.1.0 / GNU ld (GNU Binutils) 2.34)
Config:	axs103_smp_defconfig (download)
Log:	Download original Possible warnings (1) arch/arc/Makefile:27: WARNING CONFIG_ARC_TUNE_MCPU flag '' is unknown, fallback to '' Full Log # 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 <torvalds@linux-foundation.org> # 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 <leon@kernel.org> # Cc: Kees Cook <keescook@chromium.org> # Cc: Christian Brauner <christian.brauner@ubuntu.com> # Cc: Andrea Righi <andrea.righi@canonical.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-10.1.0-nolibc/arc-linux/bin/arc-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-10.1.0-nolibc/arc-linux/bin/arc-linux-ld --version # < git log --format=%s --max-count=1 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71 # < make -s -j 24 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/arc-linux/bin/arc-linux- axs103_smp_defconfig # Added to kconfig CONFIG_INITRAMFS_SOURCE="" # < make -s -j 24 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/arc-linux/bin/arc-linux- help /kisskb/src/arch/arc/Makefile:27: WARNING CONFIG_ARC_TUNE_MCPU flag '' is unknown, fallback to '' # make -s -j 24 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/arc-linux/bin/arc-linux- olddefconfig # make -s -j 24 ARCH=arc O=/kisskb/build/linus_axs103_smp_defconfig_arc-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/arc-linux/bin/arc-linux- Completed OK # rm -rf /kisskb/build/linus_axs103_smp_defconfig_arc-gcc10 # Build took: 0:01:32.091616

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