BUG at fs/jfs/jfs_dmap.c:3123 assert(bitno < 32)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_dmap.c:3123!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 6856 Comm: syz.3.163 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: c8 fd 90 0f 0b e8 a2 cf 66 fe 48 c7 c7 20 b8 0b 8c 48 c7 c6 60 b5 0b 8c ba 33 0c 00 00 48 c7 c1 60 c0 0b 8c e8 f3 ba c8 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:ffffc900083b7570 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 91943fb44bfb0f00
RDX: ffffc90027917000 RSI: 0000000000001a28 RDI: 0000000000001a29
RBP: 00000000ffffffff R08: ffffc900083b72e7 R09: 1ffff92001076e5c
R10: dffffc0000000000 R11: fffff52001076e5d R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f4e445d56c0(0000) GS:ffff8882a928d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005579fe4207b8 CR3: 0000000111ce0000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 dbAllocDmapLev+0x16b/0x3c0
 dbAllocCtl+0x14a/0x9c0
 dbAllocAG+0x1e6/0xf80
 dbAlloc+0x5ab/0xba0
 dtInsert+0xb27/0x5cd0
 jfs_mkdir+0x783/0xb00
 vfs_mkdir+0x413/0x630
 filename_mkdirat+0x285/0x510
 __se_sys_mkdirat+0x35/0x150
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e4639bc47
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4e445d4e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f4e445d4ee0 RCX: 00007f4e4639bc47
RDX: 00000000000001ff RSI: 00002000000005c0 RDI: 00000000ffffff9c
RBP: 0000200000000b00 R08: 0000200000000140 R09: 0000000000000000
R10: 0000200000000b00 R11: 0000000000000246 R12: 00002000000005c0
R13: 00007f4e445d4ea0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x19e/0x1a0
Code: c8 fd 90 0f 0b e8 a2 cf 66 fe 48 c7 c7 20 b8 0b 8c 48 c7 c6 60 b5 0b 8c ba 33 0c 00 00 48 c7 c1 60 c0 0b 8c e8 f3 ba c8 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:ffffc900083b7570 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 91943fb44bfb0f00
RDX: ffffc90027917000 RSI: 0000000000001a28 RDI: 0000000000001a29
RBP: 00000000ffffffff R08: ffffc900083b72e7 R09: 1ffff92001076e5c
R10: dffffc0000000000 R11: fffff52001076e5d R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f4e445d56c0(0000) GS:ffff88818dc8d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4e3c07f000 CR3: 0000000111ce0000 CR4: 00000000000006f0
