================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2874:6 index 196694 is out of range for type 's8[1365]' (aka 'signed char[1365]') CPU: 0 PID: 111 Comm: jfsCommit Not tainted 6.7.0-rc3-syzkaller-00033-g3b47bc037bd4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_out_of_bounds+0x11c/0x150 lib/ubsan.c:348 dbAdjTree+0x474/0x4f0 fs/jfs/jfs_dmap.c:2874 dbJoin+0x210/0x2d0 fs/jfs/jfs_dmap.c:2841 dbFreeBits+0x4eb/0xda0 fs/jfs/jfs_dmap.c:2338 dbFreeDmap fs/jfs/jfs_dmap.c:2087 [inline] dbFree+0x343/0x650 fs/jfs/jfs_dmap.c:409 txFreeMap+0x96a/0xd50 fs/jfs/jfs_txnmgr.c:2515 xtTruncate+0xe65/0x3270 fs/jfs/jfs_xtree.c:2467 jfs_free_zero_link+0x46e/0x6e0 fs/jfs/namei.c:759 jfs_evict_inode+0x35f/0x440 fs/jfs/inode.c:153 evict+0x2a4/0x630 fs/inode.c:666 txUpdateMap+0x829/0x9e0 fs/jfs/jfs_txnmgr.c:2367 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x47a/0xb70 fs/jfs/jfs_txnmgr.c:2732 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 ================================================================================