BUG at fs/jfs/jfs_dmap.c:3036 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3036!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6077 Comm: syz.3.9 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:dbFindBits+0x19e/0x1a0
Code: e9 fd 90 0f 0b e8 e2 1a 81 fe 48 c7 c7 00 db c3 8b 48 c7 c6 40 d8 c3 8b ba dc 0b 00 00 48 c7 c1 e0 e2 c3 8b e8 d3 0e e9 fd 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:ffffc900032cf330 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 1b1c9c718ad4a400
RDX: ffffc90028477000 RSI: 00000000000009af RDI: 00000000000009b0
RBP: 00000000ffffffff R08: ffff888136624253 R09: 1ffff11026cc484a
R10: dffffc0000000000 R11: ffffed1026cc484b R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f892bdb86c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001600 CR3: 0000000027f1a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 dbAllocNear+0x244/0x3d0
 dbAlloc+0x933/0xba0
 extAlloc+0x54a/0xfb0
 jfs_get_block+0x346/0xab0
 __block_write_begin_int+0x6b5/0x1900
 block_write_begin+0x8a/0x120
 jfs_write_begin+0x35/0x80
 generic_perform_write+0x2c5/0x900
 generic_file_write_iter+0x117/0x550
 vfs_write+0x5c9/0xb30
 __x64_sys_pwrite64+0x193/0x220
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f892af8ebe9
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:00007f892bdb8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007f892b1b5fa0 RCX: 00007f892af8ebe9
RDX: 000000000000fdef RSI: 0000200000000140 RDI: 0000000000000005
RBP: 00007f892b011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000e7c R11: 0000000000000246 R12: 0000000000000000
R13: 00007f892b1b6038 R14: 00007f892b1b5fa0 R15: 00007ffe115b0038
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x19e/0x1a0
Code: e9 fd 90 0f 0b e8 e2 1a 81 fe 48 c7 c7 00 db c3 8b 48 c7 c6 40 d8 c3 8b ba dc 0b 00 00 48 c7 c1 e0 e2 c3 8b e8 d3 0e e9 fd 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:ffffc900032cf330 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 1b1c9c718ad4a400
RDX: ffffc90028477000 RSI: 00000000000009af RDI: 00000000000009b0
RBP: 00000000ffffffff R08: ffff888136624253 R09: 1ffff11026cc484a
R10: dffffc0000000000 R11: ffffed1026cc484b R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f892bdb86c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555566d44608 CR3: 0000000027f1a000 CR4: 00000000000006f0
