Buildresult: linus/rpc_defconfig/arm-gcc4.9 built on Dec 9 2020, 16:36

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Status:	Failed
Date/Time:	Dec 9 2020, 16:36
Duration:	0:00:26.959516
Builder:	ka4
Revision:	mm/madvise: remove racy mm ownership check (`a68a0262abdaa251e12c53715f48e698a18ef402)`
Target:	linus/rpc_defconfig/arm-gcc4.9
Branch:	linus
Compiler:	arm-gcc4.9 (arm-linux-gnueabi-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	rpc_defconfig (download)
Log:	Download original Possible errors drivers/tty/vt/vt_ioctl.c:1019:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90) make[4]: * [scripts/Makefile.build:279: drivers/tty/vt/vt_ioctl.o] Error 1 make[3]: * [scripts/Makefile.build:496: drivers/tty/vt] Error 2 make[2]: * [scripts/Makefile.build:496: drivers/tty] Error 2 make[1]: * [Makefile:1805: drivers] Error 2 fs/fat/dir.c:759:43: internal compiler error: Max. number of generated reload insns per insn is achieved (90) make[3]: * [scripts/Makefile.build:279: fs/fat/dir.o] Error 1 make[2]: * [scripts/Makefile.build:496: fs/fat] Error 2 make[1]: * [Makefile:1805: fs] Error 2 make: * [Makefile:185: __sub-make] Error 2 No warnings found in log. Full Log # git rev-parse -q --verify a68a0262abdaa251e12c53715f48e698a18ef402^{commit} a68a0262abdaa251e12c53715f48e698a18ef402 already have revision, skipping fetch # git checkout -q -f -B kisskb a68a0262abdaa251e12c53715f48e698a18ef402 # git clean -qxdf # < git log -1 # commit a68a0262abdaa251e12c53715f48e698a18ef402 # Author: Minchan Kim <minchan@kernel.org> # Date: Tue Dec 8 20:57:18 2020 -0800 # # mm/madvise: remove racy mm ownership check # # Jann spotted the security hole due to race of mm ownership check. # # If the task is sharing the mm_struct but goes through execve() before # mm_access(), it could skip process_madvise_behavior_valid check. That # makes any advice hint to reach into the remote process. # # This patch removes the mm ownership check. With it, it will lose the # ability that local process could give any advice hint with vector # interface for some reason (e.g., performance). Since there is no # concrete example in upstream yet, it would be better to remove the # abiliity at this moment and need to review when such new advice comes # up. # # Fixes: ecb8ac8b1f14 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API") # Reported-by: Jann Horn <jannh@google.com> # Suggested-by: Jann Horn <jannh@google.com> # Signed-off-by: Minchan Kim <minchan@kernel.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 a68a0262abdaa251e12c53715f48e698a18ef402 # < make -s -j 10 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- rpc_defconfig # make -s -j 10 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- /kisskb/src/drivers/tty/vt/vt_ioctl.c: In function 'vt_ioctl': /kisskb/src/drivers/tty/vt/vt_ioctl.c:1019:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90) } ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[4]: * [/kisskb/src/scripts/Makefile.build:279: drivers/tty/vt/vt_ioctl.o] Error 1 make[3]: * [/kisskb/src/scripts/Makefile.build:496: drivers/tty/vt] Error 2 make[2]: * [/kisskb/src/scripts/Makefile.build:496: drivers/tty] Error 2 make[2]: * Waiting for unfinished jobs.... make[1]: * [/kisskb/src/Makefile:1805: drivers] Error 2 make[1]: * Waiting for unfinished jobs.... /kisskb/src/fs/fat/dir.c: In function 'fat_ioctl_filldir': /kisskb/src/fs/fat/dir.c:759:43: internal compiler error: Max. number of generated reload insns per insn is achieved (90) FAT_IOCTL_FILLDIR_FUNC(fat_ioctl_filldir, __fat_dirent) ^ /kisskb/src/fs/fat/dir.c:714:9: note: in definition of macro 'FAT_IOCTL_FILLDIR_FUNC' struct dirent_type __user d2 = d1 + 1; \ ^ Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[3]: [/kisskb/src/scripts/Makefile.build:279: fs/fat/dir.o] Error 1 make[2]: * [/kisskb/src/scripts/Makefile.build:496: fs/fat] Error 2 make[2]: * Waiting for unfinished jobs.... make[1]: * [/kisskb/src/Makefile:1805: fs] Error 2 make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 10 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_rpc_defconfig_arm-gcc4.9 # Build took: 0:00:26.959516

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