BUG at fs/jfs/jfs_dmap.c:3033 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3033!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 14480 Comm: syz.8.1036 Not tainted 6.12.0-syzkaller-00971-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:dbFindBits+0x1ce/0x1d0 fs/jfs/jfs_dmap.c:3033
Code: 93 08 90 0f 0b e8 32 b5 6a fe 48 c7 c7 00 32 43 8c 48 c7 c6 40 2f 43 8c ba d9 0b 00 00 48 c7 c1 e0 39 43 8c e8 f3 8b 93 08 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41
RSP: 0018:ffffc9000bca6e20 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: d4e1cd90ab786900
RDX: ffffc900113da000 RSI: 0000000000002c40 RDI: 0000000000002c41
RBP: 0000000000000020 R08: ffffffff8174b30c R09: fffffbfff1cfa3fc
R10: dffffc0000000000 R11: fffffbfff1cfa3fc R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f894f0b66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555bf0c36950 CR3: 00000000673f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dbAllocDmapLev+0x1e9/0x4a0 fs/jfs/jfs_dmap.c:1985
 dbAllocCtl+0x113/0x920 fs/jfs/jfs_dmap.c:1825
 dbAllocAG+0x28f/0x10b0 fs/jfs/jfs_dmap.c:1364
 dbAlloc+0x658/0xca0 fs/jfs/jfs_dmap.c:888
 dtSplitUp fs/jfs/jfs_dtree.c:981 [inline]
 dtInsert+0xd7a/0x6c10 fs/jfs/jfs_dtree.c:870
 jfs_create+0x7ba/0xbb0 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3649 [inline]
 open_last_lookups fs/namei.c:3748 [inline]
 path_openat+0x1c03/0x3590 fs/namei.c:3984
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1398
 do_sys_open fs/open.c:1413 [inline]
 __do_sys_openat fs/open.c:1429 [inline]
 __se_sys_openat fs/open.c:1424 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1424
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f894e37e759
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:00007f894f0b6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f894e536058 RCX: 00007f894e37e759
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f894e3f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f894e536058 R15: 00007ffda904e878
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x1ce/0x1d0 fs/jfs/jfs_dmap.c:3033
Code: 93 08 90 0f 0b e8 32 b5 6a fe 48 c7 c7 00 32 43 8c 48 c7 c6 40 2f 43 8c ba d9 0b 00 00 48 c7 c1 e0 39 43 8c e8 f3 8b 93 08 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41
RSP: 0018:ffffc9000bca6e20 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: d4e1cd90ab786900
RDX: ffffc900113da000 RSI: 0000000000002c40 RDI: 0000000000002c41
RBP: 0000000000000020 R08: ffffffff8174b30c R09: fffffbfff1cfa3fc
R10: dffffc0000000000 R11: fffffbfff1cfa3fc R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f894f0b66c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0c06509178 CR3: 00000000673f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400