BUG at fs/jfs/jfs_dmap.c:3033 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3033!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 9088 Comm: syz.7.319 Not tainted 6.12.0-syzkaller-01782-gbf9aa14fc523 #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: 93 08 90 0f 0b e8 c2 8f 6a fe 48 c7 c7 00 35 43 8c 48 c7 c6 40 32 43 8c ba d9 0b 00 00 48 c7 c1 e0 3c 43 8c e8 73 fe 93 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: 0000:ffffc9000b827280 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 3b465eb683edee00
RDX: ffffc9000bc31000 RSI: 0000000000003b63 RDI: 0000000000003b64
RBP: 0000000000000020 R08: ffffffff8174cffc R09: 1ffff92001704dec
R10: dffffc0000000000 R11: fffff52001704ded R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f8d971406c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d9711fd58 CR3: 000000006de90000 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_mknod+0x6f6/0xa50 fs/jfs/namei.c:1410
 vfs_mknod+0x36d/0x3b0 fs/namei.c:4189
 do_mknodat+0x3ec/0x5b0
 __do_sys_mknod fs/namei.c:4272 [inline]
 __se_sys_mknod fs/namei.c:4270 [inline]
 __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4270
 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: 0033:0x7f8d9637e819
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:00007f8d97140038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007f8d96535fa0 RCX: 00007f8d9637e819
RDX: 000000000000070f RSI: 000000000000c000 RDI: 0000000020000000
RBP: 00007f8d963f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8d96535fa0 R15: 00007ffe60718b68
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x1ce/0x1d0 fs/jfs/jfs_dmap.c:3033
Code: 93 08 90 0f 0b e8 c2 8f 6a fe 48 c7 c7 00 35 43 8c 48 c7 c6 40 32 43 8c ba d9 0b 00 00 48 c7 c1 e0 3c 43 8c e8 73 fe 93 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: 0000:ffffc9000b827280 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 3b465eb683edee00
RDX: ffffc9000bc31000 RSI: 0000000000003b63 RDI: 0000000000003b64
RBP: 0000000000000020 R08: ffffffff8174cffc R09: 1ffff92001704dec
R10: dffffc0000000000 R11: fffff52001704ded R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f8d971406c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d970ddd58 CR3: 000000006de90000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400