loop3: detected capacity change from 0 to 32768
BUG at fs/jfs/jfs_dmap.c:3033 assert(bitno < 32)
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_dmap.c:3033!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 7174 Comm: syz.3.148 Not tainted 6.12.0-syzkaller #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: 92 08 90 0f 0b e8 02 30 6b fe 48 c7 c7 c0 21 43 8c 48 c7 c6 00 1f 43 8c ba d9 0b 00 00 48 c7 c1 a0 29 43 8c e8 93 7e 92 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:ffffc90002e4f240 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: d3f3d49c96628200
RDX: ffffc9000b9e3000 RSI: 0000000000003f33 RDI: 0000000000003f34
RBP: 0000000000000020 R08: ffffffff8174b0dc R09: 1ffff920005c9de4
R10: dffffc0000000000 R11: fffff520005c9de5 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f0daf5ff6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0daf5ded58 CR3: 000000006191c000 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_link+0x3b1/0x650 fs/jfs/namei.c:826
 vfs_link+0x4f0/0x6e0 fs/namei.c:4739
 do_linkat+0x555/0x6f0 fs/namei.c:4809
 __do_sys_link fs/namei.c:4843 [inline]
 __se_sys_link fs/namei.c:4841 [inline]
 __x64_sys_link+0x82/0x90 fs/namei.c:4841
 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: 0033:0x7f0dae77e719
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:00007f0daf5ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000056
RAX: ffffffffffffffda RBX: 00007f0dae935f80 RCX: 00007f0dae77e719
RDX: 0000000000000000 RSI: 0000000020000bc0 RDI: 0000000020000280
RBP: 00007f0dae7f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0dae935f80 R15: 00007ffebd9e50b8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x1ce/0x1d0 fs/jfs/jfs_dmap.c:3033
Code: 92 08 90 0f 0b e8 02 30 6b fe 48 c7 c7 c0 21 43 8c 48 c7 c6 00 1f 43 8c ba d9 0b 00 00 48 c7 c1 a0 29 43 8c e8 93 7e 92 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:ffffc90002e4f240 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: d3f3d49c96628200
RDX: ffffc9000b9e3000 RSI: 0000000000003f33 RDI: 0000000000003f34
RBP: 0000000000000020 R08: ffffffff8174b0dc R09: 1ffff920005c9de4
R10: dffffc0000000000 R11: fffff520005c9de5 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f0daf5ff6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3052c72440 CR3: 000000006191c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400