ci2 starts bisection 2023-02-22 22:52:20.719854266 +0000 UTC m=+32904.425582467 bisecting fixing commit since 8ed710da2873c2aeb3bb805864a699affaf1d03b building syzkaller on d88f3abb0873e90df9259d60d5bcd3ad796db6b8 ensuring issue is reproducible on original commit 8ed710da2873c2aeb3bb805864a699affaf1d03b testing commit 8ed710da2873c2aeb3bb805864a699affaf1d03b gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: e8620e175744d32b86ca3c0584ded5bf826cea5e4dbb2e3c912e1f379768a7ce run #0: OK run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: UBSAN: array-index-out-of-bounds in xtSearch run #11: crashed: UBSAN: array-index-out-of-bounds in xtLookup run #12: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #13: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #14: crashed: UBSAN: array-index-out-of-bounds in xtSearch run #15: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #16: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #17: OK run #18: OK run #19: OK testing current HEAD d8ca6dbb8de7923fcfb18e0b0b123f37c3225519 testing commit d8ca6dbb8de7923fcfb18e0b0b123f37c3225519 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: c1b66ada1f222c28fe9331602aa6d905de15a86820509b20dd4d9d5f25839279 run #0: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #1: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #2: crashed: UBSAN: array-index-out-of-bounds in xtSearch run #3: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #4: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #5: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #6: crashed: UBSAN: array-index-out-of-bounds in xtSearch run #7: crashed: UBSAN: array-index-out-of-bounds in xtTruncate run #8: OK run #9: OK revisions tested: 2, total time: 52m18.253332148s (build: 32m18.181024946s, test: 17m39.730075461s) the crash still happens on HEAD commit msg: Merge tag 'nfs-for-6.3-1' of git://git.linux-nfs.org/projects/anna/linux-nfs crash: UBSAN: array-index-out-of-bounds in xtTruncate ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:2304:9 index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]') CPU: 0 PID: 10376 Comm: syz-executor.4 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: dump_stack_lvl+0x12e/0x1d0 __ubsan_handle_out_of_bounds+0xac/0xd0 xtTruncate+0x2257/0x2c90 jfs_truncate_nolock+0x18b/0x340 jfs_truncate+0xb3/0x120 jfs_setattr+0x38b/0x630 notify_change+0x8da/0xbf0 do_truncate+0x1af/0x2b0 path_openat+0x260d/0x2b80 do_filp_open+0x25f/0x4b0 do_sys_openat2+0x100/0x420 __x64_sys_open+0x1ef/0x240 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f19cca8c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f19cd79d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f19ccbac2c0 RCX: 00007f19cca8c0d9 RDX: 0000000000000000 RSI: 000000000014d27e RDI: 0000000020000180 RBP: 00007f19ccae7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcd2d66c8f R14: 00007f19cd79d300 R15: 0000000000022000 ================================================================================