------------[ cut here ]------------
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2778:24
index 4294967295 is out of range for type 's8[1365]' (aka 'signed char[1365]')
CPU: 0 PID: 112 Comm: jfsCommit Not tainted 6.9.0-syzkaller-01768-ga5131c3fdf26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:114
 ubsan_epilogue lib/ubsan.c:231 [inline]
 __ubsan_handle_out_of_bounds+0x11d/0x150 lib/ubsan.c:429
 dbJoin+0x2ed/0x310 fs/jfs/jfs_dmap.c:2778
 dbFreeBits+0x4ef/0xdb0 fs/jfs/jfs_dmap.c:2338
 dbFreeDmap fs/jfs/jfs_dmap.c:2087 [inline]
 dbFree+0x357/0x670 fs/jfs/jfs_dmap.c:409
 txFreeMap+0x966/0xd50 fs/jfs/jfs_txnmgr.c:2515
 xtTruncate+0xe61/0x3270 fs/jfs/jfs_xtree.c:2467
 jfs_free_zero_link+0x46a/0x6e0 fs/jfs/namei.c:759
 jfs_evict_inode+0x35b/0x440 fs/jfs/inode.c:153
 evict+0x2a8/0x630 fs/inode.c:667
 txUpdateMap+0x825/0x9e0 fs/jfs/jfs_txnmgr.c:2367
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x496/0xb70 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x2ec/0x380 kernel/kthread.c:388
 ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
---[ end trace ]---