================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2848:24
index 4294967295 is out of range for type 's8[1365]' (aka 'signed char[1365]')
CPU: 1 PID: 278 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 ubsan_epilogue+0xa/0x30 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
 dbJoin+0xca7/0xd40 fs/jfs/jfs_dmap.c:2848
 dbFreeBits+0x49f/0xd40 fs/jfs/jfs_dmap.c:2408
 dbFreeDmap fs/jfs/jfs_dmap.c:2157 [inline]
 dbFree+0x31c/0x640 fs/jfs/jfs_dmap.c:398
 txFreeMap+0x9e2/0xde0 fs/jfs/jfs_txnmgr.c:2550
 xtTruncate+0xccf/0x2d10 fs/jfs/jfs_xtree.c:3428
 jfs_free_zero_link+0x358/0x4b0 fs/jfs/namei.c:758
 jfs_evict_inode+0x34c/0x430 fs/jfs/inode.c:159
 evict+0x4b6/0x8b0 fs/inode.c:647
 txLazyCommit fs/jfs/jfs_txnmgr.c:2699 [inline]
 jfs_lazycommit+0x445/0xb60 fs/jfs/jfs_txnmgr.c:2767
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
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