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UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2696:27
index 4294967295 is out of range for type 's8[1365]' (aka 'signed char[1365]')
CPU: 0 PID: 4964 Comm: syz.4.274 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0x118/0x140 lib/ubsan.c:282
 dbSplit+0x1fd/0x220 fs/jfs/jfs_dmap.c:2696
 dbAllocBits+0x4e5/0x9a0 fs/jfs/jfs_dmap.c:2259
 dbAllocDmap fs/jfs/jfs_dmap.c:2100 [inline]
 dbAllocDmapLev+0x24c/0x490 fs/jfs/jfs_dmap.c:2054
 dbAllocCtl+0x113/0x920 fs/jfs/jfs_dmap.c:1891
 dbAllocAG+0x28b/0x10b0 fs/jfs/jfs_dmap.c:1432
 dbAlloc+0x654/0xc90 fs/jfs/jfs_dmap.c:888
 dtSplitUp fs/jfs/jfs_dtree.c:979 [inline]
 dtInsert+0xda3/0x6b00 fs/jfs/jfs_dtree.c:868
 jfs_create+0x7b2/0xbb0 fs/jfs/namei.c:137
 vfs_create+0x306/0x490 fs/namei.c:3162
 do_mknodat+0x3f5/0x690 fs/namei.c:3994
 __do_sys_mknod fs/namei.c:4027 [inline]
 __se_sys_mknod fs/namei.c:4025 [inline]
 __x64_sys_mknod+0x8a/0xa0 fs/namei.c:4025
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2155715ff9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2153b6d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007f21558ce058 RCX: 00007f2155715ff9
RDX: 0000000000000709 RSI: 0000000000000000 RDI: 0000000020000000
RBP: 00007f2155788296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f21558ce058 R15: 00007ffd9fcb94e8
 </TASK>
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