Buildresult: linus/ia64-defconfig/ia64-gcc4.9 built on Dec 9 2020, 12:10

kisskb

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Status:	OK
Date/Time:	Dec 9 2020, 12:10
Duration:	0:03:36.403439
Builder:	ka1
Revision:	afs: Fix memory leak when mounting with multiple source parameters (`4cb682964706deffb4861f0a91329ab3a705039f)`
Target:	linus/ia64-defconfig/ia64-gcc4.9
Branch:	linus
Compiler:	ia64-gcc4.9 (ia64-linux-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	defconfig (download)
Log:	Download original Possible warnings (5) arch/ia64/configs/generic_defconfig:58:warning: override: reassigning to symbol ATA arch/ia64/configs/generic_defconfig:59:warning: override: reassigning to symbol ATA_PIIX <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] Full Log # git rev-parse -q --verify 4cb682964706deffb4861f0a91329ab3a705039f^{commit} 4cb682964706deffb4861f0a91329ab3a705039f already have revision, skipping fetch # git checkout -q -f -B kisskb 4cb682964706deffb4861f0a91329ab3a705039f # git clean -qxdf # < git log -1 # commit 4cb682964706deffb4861f0a91329ab3a705039f # Author: David Howells <dhowells@redhat.com> # Date: Tue Dec 8 23:52:03 2020 +0000 # # afs: Fix memory leak when mounting with multiple source parameters # # There's a memory leak in afs_parse_source() whereby multiple source= # parameters overwrite fc->source in the fs_context struct without freeing # the previously recorded source. # # Fix this by only permitting a single source parameter and rejecting with # an error all subsequent ones. # # This was caught by syzbot with the kernel memory leak detector, showing # something like the following trace: # # unreferenced object 0xffff888114375440 (size 32): # comm "repro", pid 5168, jiffies 4294923723 (age 569.948s) # backtrace: # slab_post_alloc_hook+0x42/0x79 # __kmalloc_track_caller+0x125/0x16a # kmemdup_nul+0x24/0x3c # vfs_parse_fs_string+0x5a/0xa1 # generic_parse_monolithic+0x9d/0xc5 # do_new_mount+0x10d/0x15a # do_mount+0x5f/0x8e # __do_sys_mount+0xff/0x127 # do_syscall_64+0x2d/0x3a # entry_SYSCALL_64_after_hwframe+0x44/0xa9 # # Fixes: 13fcc6837049 ("afs: Add fs_context support") # Reported-by: syzbot+86dc6632faaca40133ab@syzkaller.appspotmail.com # Signed-off-by: David Howells <dhowells@redhat.com> # cc: Randy Dunlap <rdunlap@infradead.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-ld --version # < git log --format=%s --max-count=1 4cb682964706deffb4861f0a91329ab3a705039f # < make -s -j 8 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux- defconfig arch/ia64/configs/generic_defconfig:58:warning: override: reassigning to symbol ATA arch/ia64/configs/generic_defconfig:59:warning: override: reassigning to symbol ATA_PIIX # < make -s -j 8 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux- help # make -s -j 8 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux- olddefconfig # make -s -j 8 ARCH=ia64 O=/kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] In file included from /kisskb/src/arch/ia64/include/uapi/asm/intrinsics.h:22:0, from /kisskb/src/arch/ia64/include/asm/intrinsics.h:11, from /kisskb/src/arch/ia64/include/asm/timex.h:14, from /kisskb/src/include/linux/timex.h:65, from /kisskb/src/include/linux/time32.h:13, from /kisskb/src/include/linux/time.h:73, from /kisskb/src/fs/nfs/read.c:11: /kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion': /kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] ((__typeof__((ptr))) __xchg((unsigned long) (x), (ptr), sizeof((ptr)))) ^ /kisskb/src/fs/nfs/read.c:196:5: note: in expansion of macro 'xchg' xchg(&nfs_req_openctx(req)->error, error); ^ /kisskb/src/fs/nfs/read.c: In function 'nfs_readpage': /kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] ((__typeof__((ptr))) __xchg((unsigned long) (x), (ptr), sizeof((ptr)))) ^ /kisskb/src/fs/nfs/read.c:355:2: note: in expansion of macro 'xchg' xchg(&ctx->error, 0); ^ No errors detected in 22334 functions. Completed OK # rm -rf /kisskb/build/linus_ia64-defconfig_ia64-gcc4.9 # Build took: 0:03:36.403439

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