ci2 starts bisection 2024-06-13 08:25:05.981514443 +0000 UTC m=+24437.482724087
bisecting fixing commit since 909ba1f1b4146de529469910c1bd0b1248964536
building syzkaller on 20bf80e1d6eb340a35a841a099b8dca81e42ff5e
ensuring issue is reproducible on original commit 909ba1f1b4146de529469910c1bd0b1248964536

testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 676e61d4c65ab42115a42a817d999f0d569dc2c2c703f5e225fbca1e6cddbb4e
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
check whether we can drop unnecessary instrumentation
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8a143e7618014793b6042d8b9eee7bccedea2ce8585cc032e48235eb1c933119
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
the bug reproduces without the instrumentation
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
kconfig minimization: base=3820 full=7456 leaves diff=1991
split chunks (needed=false): <1991>
split chunk #0 of len 1991 into 5 parts
testing without sub-chunk 1/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 239248869dea84a15c3fea43af6477d8c549ce0e0d071db3dfba0187fb309aac
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 529448d4afc58916a07fb98b5616836559c04eaa48a5a900d6e4c357610e3c22
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed
testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 782d58c0d3512f636e4025f72de876bdab2771ef2e42ee2f7e36914222a20913
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 96d0ffafe97d219117724397ad07545a338c1a0993fc0eb0891a62fbf910d12a
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit 909ba1f1b4146de529469910c1bd0b1248964536 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c97cd507d3a55061ad6fef82634ddce50fa10f96e12a7d49610a0d0a241d4d71
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
the chunk can be dropped
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing current HEAD ae9f2a70d69e9c840ee1eda201f09662ca7e2038
testing commit ae9f2a70d69e9c840ee1eda201f09662ca7e2038 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2a026c4ff06559b9b9a3f3e55b811805262ace6a4ac2181572e8527bd9958562
all runs: crashed: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
representative crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed, types: [SYZ_FAILURE]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h29m29.291554489s (build: 44m4.924737632s, test: 42m10.737066594s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1.93
crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
2024/06/13 09:54:19 parsed 1 programs
2024/06/13 09:54:19 [FATAL] failed to run ["./syz-executor" "setup" "fault" "binfmt_misc" "swap"]: exit status 67
mkdir(/syzcgroup) failed: 17
mount(binfmt_misc) failed: 16
write(/proc/sys/fs/binfmt_misc/register) failed: 17
SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
 (errno 17: File exists)