ci starts bisection 2025-02-14 07:52:47.325049825 +0000 UTC m=+35704.068340706
bisecting fixing commit since dccb07f2914cdab2ac3a5b6c98406f765acab803
building syzkaller on 4cf3f9b3f15d248d052cd369d23308c953d657d9
ensuring issue is reproducible on original commit dccb07f2914cdab2ac3a5b6c98406f765acab803

testing commit dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9b3ab8040af4f84ad9e3dabf44d99efcf13227502271e8909349abb851132aca
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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5047736a17dd1a6528f0a040aa5017b377fce5200254413079e0f9451c5c192d
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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
kconfig minimization: base=4064 full=8006 leaves diff=2014
split chunks (needed=false): <2014>
split chunk #0 of len 2014 into 5 parts
testing without sub-chunk 1/5
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 32203dd372ed6d0721142a970d5abd216945f7049fcde0e9769c0a40574573d5
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 dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8169de5278a4836ab00e30b77208809d841b148700bcb4d25f06931c9b6f3491
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 [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 696c7f605b21cb15c2785cbd0dc0163642dff420877fc54026c8477e832857d7
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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 44e009095ee6823d2ffe5129671128351e7dad7f65555ae59aa5ed2afa1a151a
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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit dccb07f2914cdab2ac3a5b6c98406f765acab803 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 611df61586e871b5ab31ab5457b8ea5e7b801814e14b6a1161ccda4cccecae5c
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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing current HEAD 128c8f96eb8638c060cd3532dc394d046ce64fe1
testing commit 128c8f96eb8638c060cd3532dc394d046ce64fe1 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2f2735ed3816f074a81d25c5636e55a27e08339254c6fa5840a575df23df2f99
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: 1h29m39.160533253s (build: 55m16.626507168s, test: 28m29.842383926s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'drm-fixes-2025-02-14' of https://gitlab.freedesktop.org/drm/kernel
crash: SYZFAIL: write(/proc/sys/fs/binfmt_misc/register) failed
2025/02/14 09:22:04 parsed 1 programs
2025/02/14 09:22:04 [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)