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UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:360:4
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 1 PID: 28967 Comm: syz-executor.1 Not tainted 6.5.0-rc4-syzkaller-00251-gf0ab9f34e59e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __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
 xtSearch+0x6dc/0x1ca0 fs/jfs/jfs_xtree.c:360
 xtLookup+0x2c4/0x8e0 fs/jfs/jfs_xtree.c:152
 jfs_get_block+0x2e9/0xe60 fs/jfs/inode.c:218
 __mpage_writepage+0x90c/0x2010 fs/mpage.c:559
 write_cache_pages+0x831/0x1420 mm/page-writeback.c:2474
 mpage_writepages+0x107/0x1d0 fs/mpage.c:679
 do_writepages+0x3a6/0x670 mm/page-writeback.c:2553
 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:393
 __filemap_fdatawrite_range mm/filemap.c:426 [inline]
 file_write_and_wait_range+0x20f/0x300 mm/filemap.c:784
 jfs_fsync+0x72/0x1c0 fs/jfs/file.c:24
 vfs_fsync_range fs/sync.c:188 [inline]
 vfs_fsync fs/sync.c:202 [inline]
 do_fsync fs/sync.c:212 [inline]
 __do_sys_fsync fs/sync.c:220 [inline]
 __se_sys_fsync fs/sync.c:218 [inline]
 __x64_sys_fsync+0x198/0x1e0 fs/sync.c:218
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7feaa9a7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007feaaa8290c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00007feaa9b9c050 RCX: 00007feaa9a7cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007feaa9ac847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007feaa9b9c050 R15: 00007ffe233390e8
 </TASK>
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