------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2783:24
index 4294967295 is out of range for type 's8[1365]' (aka 'signed char[1365]')
CPU: 0 UID: 0 PID: 105 Comm: jfsCommit Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_out_of_bounds+0x121/0x150 lib/ubsan.c:429
 dbJoin+0x2ed/0x310 fs/jfs/jfs_dmap.c:2783
 dbFreeBits+0x4db/0xd90 fs/jfs/jfs_dmap.c:2343
 dbFreeDmap fs/jfs/jfs_dmap.c:2092 [inline]
 dbFree+0x35b/0x680 fs/jfs/jfs_dmap.c:409
 txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534
 txUpdateMap+0x342/0xb10
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x49a/0xb80 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
---[ end trace ]---
Kernel panic - not syncing: UBSAN: panic_on_warn set ...
CPU: 0 UID: 0 PID: 105 Comm: jfsCommit Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 panic+0x349/0x880 kernel/panic.c:354
 check_panic_on_warn+0x86/0xb0 kernel/panic.c:243
 ubsan_epilogue lib/ubsan.c:236 [inline]
 __ubsan_handle_out_of_bounds+0x141/0x150 lib/ubsan.c:429
 dbJoin+0x2ed/0x310 fs/jfs/jfs_dmap.c:2783
 dbFreeBits+0x4db/0xd90 fs/jfs/jfs_dmap.c:2343
 dbFreeDmap fs/jfs/jfs_dmap.c:2092 [inline]
 dbFree+0x35b/0x680 fs/jfs/jfs_dmap.c:409
 txFreeMap+0x798/0xd50 fs/jfs/jfs_txnmgr.c:2534
 txUpdateMap+0x342/0xb10
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x49a/0xb80 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..