loop0: detected capacity change from 0 to 32768
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UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2941:16
index 1381 is out of range for type 's8 [1365]'
CPU: 1 PID: 5602 Comm: syz-executor.0 Not tainted 6.2.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x12a/0x1c0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0xaf/0xe0 lib/ubsan.c:282
 dbFindLeaf+0x230/0x3b0 fs/jfs/jfs_dmap.c:2941
 dbAllocDmapLev+0x9a/0x3a0 fs/jfs/jfs_dmap.c:1952
 dbAllocCtl+0xe5/0x7d0 fs/jfs/jfs_dmap.c:1808
 dbAllocAG+0x208/0x1070 fs/jfs/jfs_dmap.c:1349
 dbAlloc+0x73f/0xa30 fs/jfs/jfs_dmap.c:873
 dtSplitUp fs/jfs/jfs_dtree.c:974 [inline]
 dtInsert+0xbe1/0x6c10 fs/jfs/jfs_dtree.c:863
 jfs_mkdir+0x601/0x950 fs/jfs/namei.c:270
 vfs_mkdir+0x2d3/0x460 fs/namei.c:4036
 do_mkdirat+0x20b/0x480 fs/namei.c:4061
 __do_sys_mkdirat fs/namei.c:4076 [inline]
 __se_sys_mkdirat fs/namei.c:4074 [inline]
 __x64_sys_mkdirat+0x80/0x90 fs/namei.c:4074
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0c5ec8c0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0c5dffe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f0c5edabf80 RCX: 00007f0c5ec8c0a9
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004
RBP: 00007f0c5ece7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffee3df11cf R14: 00007f0c5dffe300 R15: 0000000000022000
 </TASK>
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