BUG at fs/jfs/jfs_dmap.c:3028 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3028!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 9469 Comm: syz.6.365 Not tainted 6.16.0-rc3-syzkaller-00044-g7595b66ae9de #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3028
Code: ec fd 90 0f 0b e8 52 d8 84 fe 48 c7 c7 80 b1 c3 8b 48 c7 c6 c0 ae c3 8b ba d4 0b 00 00 48 c7 c1 60 b9 c3 8b e8 53 16 ec 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:ffffc90004cf7570 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 2c5d54c5b03e1400
RDX: ffffc9000b4f9000 RSI: 0000000000002e79 RDI: 0000000000002e7a
RBP: 00000000ffffffff R08: ffffc90004cf7287 R09: 1ffff9200099ee50
R10: dffffc0000000000 R11: fffff5200099ee51 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f965de6b6c0(0000) GS:ffff888125d83000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f965de4ad58 CR3: 0000000028ca4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1977
 dbAllocCtl+0x14a/0x9b0 fs/jfs/jfs_dmap.c:1817
 dbAllocAG+0x1e8/0xf10 fs/jfs/jfs_dmap.c:1353
 dbAlloc+0x5a8/0xba0 fs/jfs/jfs_dmap.c:877
 dtSplitUp fs/jfs/jfs_dtree.c:982 [inline]
 dtInsert+0xad5/0x5f40 fs/jfs/jfs_dtree.c:871
 jfs_link+0x312/0x550 fs/jfs/namei.c:826
 vfs_link+0x4ed/0x6e0 fs/namei.c:4863
 do_linkat+0x272/0x560 fs/namei.c:4933
 __do_sys_link fs/namei.c:4967 [inline]
 __se_sys_link fs/namei.c:4965 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4965
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f965cf8e929
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:00007f965de6b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007f965d1b5fa0 RCX: 00007f965cf8e929
RDX: 0000000000000000 RSI: 0000200000000240 RDI: 00002000000001c0
RBP: 00007f965d010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f965d1b5fa0 R15: 00007ffe8659d7e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3028
Code: ec fd 90 0f 0b e8 52 d8 84 fe 48 c7 c7 80 b1 c3 8b 48 c7 c6 c0 ae c3 8b ba d4 0b 00 00 48 c7 c1 60 b9 c3 8b e8 53 16 ec 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:ffffc90004cf7570 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 2c5d54c5b03e1400
RDX: ffffc9000b4f9000 RSI: 0000000000002e79 RDI: 0000000000002e7a
RBP: 00000000ffffffff R08: ffffc90004cf7287 R09: 1ffff9200099ee50
R10: dffffc0000000000 R11: fffff5200099ee51 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f965de6b6c0(0000) GS:ffff888125c83000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd804e95368 CR3: 0000000028ca4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400