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: 1 PID: 11398 Comm: syz-executor.2 Not tainted 6.1.84-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:dbFindBits+0x1c8/0x1d0 fs/jfs/jfs_dmap.c:3028
Code: f7 56 82 07 0f 0b e8 37 c9 84 fe 48 c7 c7 e0 88 24 8b 48 c7 c6 20 86 24 8b ba d4 0b 00 00 48 c7 c1 c0 90 24 8b e8 d1 56 82 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:ffffc900031dee20 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 34b388f08c003700
RDX: ffffc90004d11000 RSI: 0000000000007840 RDI: 0000000000007841
RBP: 0000000000000020 R08: ffffffff816e1d8c R09: fffff5200063bd65
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fa83cb1f6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32d27000 CR3: 00000000213d7000 CR4: 00000000003526e0
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/0x500 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+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa83be7de69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa83cb1f0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fa83bfabf80 RCX: 00007fa83be7de69
RDX: 000000000000275a RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007fa83beca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa83bfabf80 R15: 00007ffc40715dd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x1c8/0x1d0 fs/jfs/jfs_dmap.c:3028
Code: f7 56 82 07 0f 0b e8 37 c9 84 fe 48 c7 c7 e0 88 24 8b 48 c7 c6 20 86 24 8b ba d4 0b 00 00 48 c7 c1 c0 90 24 8b e8 d1 56 82 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:ffffc900031dee20 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 34b388f08c003700
RDX: ffffc90004d11000 RSI: 0000000000007840 RDI: 0000000000007841
RBP: 0000000000000020 R08: ffffffff816e1d8c R09: fffff5200063bd65
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fa83cb1f6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32d28000 CR3: 00000000213d7000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400