BUG at fs/jfs/jfs_dmap.c:3028 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3028!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4086 Comm: syz.4.93 Not tainted 6.1.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:dbFindBits+0x1c8/0x1d0 fs/jfs/jfs_dmap.c:3028
Code: de d4 9c 07 0f 0b e8 c7 4c 84 fe 48 c7 c7 20 b5 44 8b 48 c7 c6 60 b2 44 8b ba d4 0b 00 00 48 c7 c1 00 bd 44 8b e8 b8 d4 9c 07 <0f> 0b 66 0f 1f 44 00 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 50
RSP: 0018:ffffc90008e36e20 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 7dc28d434400be00
RDX: ffffc90005b62000 RSI: 0000000000010387 RDI: 0000000000010388
RBP: 0000000000000020 R08: ffffffff816e3d8c R09: fffff520011c6d65
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fdd844c16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdd835fdfb8 CR3: 00000000592b3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dbAllocDmapLev+0x1e5/0x490 fs/jfs/jfs_dmap.c:1983
 dbAllocCtl+0x113/0x920 fs/jfs/jfs_dmap.c:1823
 dbAllocAG+0x28b/0x10b0 fs/jfs/jfs_dmap.c:1364
 dbAlloc+0x654/0xc90 fs/jfs/jfs_dmap.c:888
 dtSplitUp fs/jfs/jfs_dtree.c:979 [inline]
 dtInsert+0xda3/0x6b00 fs/jfs/jfs_dtree.c:868
 jfs_create+0x7b2/0xbb0 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3484 [inline]
 open_last_lookups fs/namei.c:3552 [inline]
 path_openat+0x12f1/0x2e60 fs/namei.c:3782
 do_filp_open+0x230/0x480 fs/namei.c:3812
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdd837799f9
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:00007fdd844c1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fdd83915f80 RCX: 00007fdd837799f9
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fdd837e78ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdd83915f80 R15: 00007ffc911852a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x1c8/0x1d0 fs/jfs/jfs_dmap.c:3028
Code: de d4 9c 07 0f 0b e8 c7 4c 84 fe 48 c7 c7 20 b5 44 8b 48 c7 c6 60 b2 44 8b ba d4 0b 00 00 48 c7 c1 00 bd 44 8b e8 b8 d4 9c 07 <0f> 0b 66 0f 1f 44 00 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 50
RSP: 0018:ffffc90008e36e20 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 7dc28d434400be00
RDX: ffffc90005b62000 RSI: 0000000000010387 RDI: 0000000000010388
RBP: 0000000000000020 R08: ffffffff816e3d8c R09: fffff520011c6d65
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fdd844c16c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1657ee8178 CR3: 00000000592b3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400