ci2 starts bisection 2023-04-27 00:51:57.900420148 +0000 UTC m=+10067.097956822
bisecting fixing commit since 493ffd6605b2d3d4dc7008ab927dba319f36671f
building syzkaller on 4954e4b2cf1e777715d52521afd2d9772d96f160
ensuring issue is reproducible on original commit 493ffd6605b2d3d4dc7008ab927dba319f36671f

testing commit 493ffd6605b2d3d4dc7008ab927dba319f36671f gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: be2e6e52aee68e0ed162735c38e6c7fdcd7b022de374a522a7ad7401680f0a84
run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe
run #1: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM
run #2: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM
run #3: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe
run #4: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM
run #5: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #6: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #7: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #8: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #9: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #10: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #11: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #12: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #13: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #14: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #15: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #16: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #17: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #18: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
run #19: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
testing current HEAD 6e98b09da931a00bf4e0477d0fa52748bf28fcce
testing commit 6e98b09da931a00bf4e0477d0fa52748bf28fcce gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 6af96a7c308c31ed553bb43616901aafcaf0880dd5f783c306a4b9b771c19475
all runs: crashed: UBSAN: array-index-out-of-bounds in dtSplitRoot
revisions tested: 2, total time: 42m42.163142366s (build: 34m57.369196146s, test: 6m49.787086838s)
the crash still happens on HEAD
commit msg: Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
crash: UBSAN: array-index-out-of-bounds in dtSplitRoot
loop0: detected capacity change from 0 to 32768
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:1971:9
index -2 is out of range for type 'struct dtslot[128]'
CPU: 1 PID: 5392 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 <TASK>
 dump_stack_lvl+0x12e/0x1d0
 __ubsan_handle_out_of_bounds+0xac/0xd0
 dtSplitRoot+0x7e0/0x17a0
 dtInsert+0xfed/0x6c80
 jfs_mkdir+0x610/0x970
 vfs_mkdir+0x1fc/0x370
 do_mkdirat+0x24e/0x490
 __x64_sys_mkdirat+0x84/0x90
 do_syscall_64+0x41/0xc0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f86a128b5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f86a23c2168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f86a13abf80 RCX: 00007f86a128b5a9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003
RBP: 00007f86a12e6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdec9b159f R14: 00007f86a23c2300 R15: 0000000000022000
 </TASK>
================================================================================