BUG at fs/jfs/jfs_dmap.c:3036 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3036!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 6824 Comm: syz.3.126 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3036
Code: ec fd 90 0f 0b e8 42 b4 84 fe 48 c7 c7 c0 07 24 8b 48 c7 c6 00 05 24 8b ba dc 0b 00 00 48 c7 c1 a0 0f 24 8b e8 e3 e2 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:ffffc900068a7448 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 946db7c5663fda00
RDX: ffffc90012338000 RSI: 00000000000008ac RDI: 00000000000008ad
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000d14e2d R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f1e1a4b96c0(0000) GS:ffff888126bc8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e1a4b8f98 CR3: 0000000066798000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1985
 dbAllocCtl+0x14a/0x9c0 fs/jfs/jfs_dmap.c:1825
 dbAllocAG+0x1e6/0xff0 fs/jfs/jfs_dmap.c:1353
 dbAlloc+0x5a8/0xba0 fs/jfs/jfs_dmap.c:877
 ea_get+0x98b/0x1330 fs/jfs/xattr.c:516
 __jfs_setxattr+0x57c/0x1120 fs/jfs/xattr.c:727
 jfs_initxattrs+0x18c/0x260 fs/jfs/xattr.c:1040
 security_inode_init_security+0x2a0/0x3f0 security/security.c:1891
 jfs_init_security+0x91/0xe0 fs/jfs/xattr.c:1052
 jfs_mkdir+0x28d/0xa70 fs/jfs/namei.c:240
 vfs_mkdir+0x306/0x510 fs/namei.c:4453
 do_mkdirat+0x247/0x590 fs/namei.c:4486
 __do_sys_mkdirat fs/namei.c:4503 [inline]
 __se_sys_mkdirat fs/namei.c:4501 [inline]
 __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4501
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1e1c6bd717
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 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:00007f1e1a4b8e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f1e1a4b8ef0 RCX: 00007f1e1c6bd717
RDX: 00000000000001ff RSI: 00002000000000c0 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000000c0
R13: 00007f1e1a4b8eb0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3036
Code: ec fd 90 0f 0b e8 42 b4 84 fe 48 c7 c7 c0 07 24 8b 48 c7 c6 00 05 24 8b ba dc 0b 00 00 48 c7 c1 a0 0f 24 8b e8 e3 e2 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:ffffc900068a7448 EFLAGS: 00010246
RAX: 0000000000000030 RBX: 0000000000000000 RCX: 946db7c5663fda00
RDX: ffffc90012338000 RSI: 00000000000008ac RDI: 00000000000008ad
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000d14e2d R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020
FS:  00007f1e1a4b96c0(0000) GS:ffff888126bc8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e1a4b8f98 CR3: 0000000066798000 CR4: 00000000003526f0