UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:627:34
index -999035904 is out of range for type 'atomic_t [128]'
CPU: 1 PID: 25751 Comm: syz-executor.4 Not tainted 6.1.0-rc1-next-20221020-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 ubsan_epilogue+0xb/0x50 lib/ubsan.c:151
 __ubsan_handle_divrem_overflow.cold-0xa/0xf1
 dbNextAG+0x55d/0x5f0 fs/jfs/jfs_dmap.c:627
 dbAlloc+0x3e6/0xa70 fs/jfs/jfs_dmap.c:862
 dtSplitUp+0x365/0x5130 fs/jfs/jfs_dtree.c:974
 dtInsert+0x82b/0xa10 fs/jfs/jfs_dtree.c:863
 jfs_create+0x5b7/0xac0 fs/jfs/namei.c:137
 lookup_open.isra.0+0xf05/0x12a0 fs/namei.c:3413
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x990/0x2850 fs/namei.c:3710
 do_filp_open+0x1b6/0x400 fs/namei.c:3740
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_creat fs/open.c:1402 [inline]
 __se_sys_creat fs/open.c:1396 [inline]
 __x64_sys_creat+0xc9/0x120 fs/open.c:1396
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9aa088b5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007f9aa19fd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f9aa09abf80 RCX: 00007f9aa088b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200054c0
RBP: 00007f9aa08e6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe699d2a8f R14: 00007f9aa19fd300 R15: 0000000000022000
 </TASK>
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