ci2 starts bisection 2024-01-09 00:59:29.295227207 +0000 UTC m=+27790.516708524
bisecting fixing commit since a507f147e6f06e86b7649b46bc1d3caa34b196d6
building syzkaller on fb427a0782000106c62de76d251e5a02de5406a9
ensuring issue is reproducible on original commit a507f147e6f06e86b7649b46bc1d3caa34b196d6

testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 34852bfd30394f02f5f2fba7efbe8dc16175c40e51ae0e7f8130197883447137
run #0: basic kernel testing failed: BUG: failed to run executor version: failed to start ./syz-executor [./syz-executor version]: fork/exec ./syz-executor:
run #1: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #2: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #3: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #4: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #5: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #6: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #7: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #8: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #9: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #10: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #11: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #12: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #13: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #14: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #15: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #16: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #17: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #18: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
run #19: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5d03228ebf5ebc9b9a0be0b968c2d316a98f462eb43d5b13cc03d06fb9525ffd
all runs: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
kconfig minimization: base=3820 full=7526 leaves diff=1996
split chunks (needed=false): <1996>
split chunk #0 of len 1996 into 5 parts
testing without sub-chunk 1/5
disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed
testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5e07f63649ef9c3fe74d86b491ffb98717f14ff1b94b21d118ad53323dff922c
all runs: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6a97c9fb299c2c4f9d4c8a650aa2139460cc1710736200655031cd446d819922
all runs: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 0da1643c8e908fc0653a71b6b86dc5c5b4aa7d1bce9c1f12df5aa9678f7a4f2e
all runs: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b5ce4b3aa9b9e9358f9947cd3e83f65e94fcda4b3fdd5c1d906a6ea46198693f
all runs: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit a507f147e6f06e86b7649b46bc1d3caa34b196d6 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ca1e8fe38bec3eccb9f90afda161c90d83a3b0c6c4ae6b6f11dde16a239b611e
all runs: crashed: KASAN: slab-out-of-bounds Read in dns_resolver_preparse
representative crash: KASAN: slab-out-of-bounds Read in dns_resolver_preparse, types: [KASAN]
the chunk can be dropped
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
determining the merge base between a507f147e6f06e86b7649b46bc1d3caa34b196d6 and ab5f3fcb7c72094684760e0cd8954d8d570b5e83
830b3c68c1fb1e9176028d02ef86f3cf76aa2476/Linux 6.1 is a merge base, check if it has the bug
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 91d9465bace3cdacbc9f547f36cac1aa5f094b4c991d7f6127378bdb2071764a
run #0: basic kernel testing failed: BUG: failed to run executor version: failed to run ["./syz-executor" "version"]: signal: segmentation fault
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
false negative chance: 0.000
reproducer does not crash the merge base, so there's no known bad commit
revisions tested: 8, total time: 1h18m17.012888655s (build: 45m21.811211901s, test: 30m9.485827989s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1