BUG at fs/jfs/namei.c:513 assert(ip->i_nlink)
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kernel BUG at fs/jfs/namei.c:513!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 5843 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:jfs_unlink+0x9ea/0xa20 fs/jfs/namei.c:513
Code: e9 4c fb ff ff e8 76 aa 8d fe 48 c7 c7 20 4a 43 8b 48 c7 c6 e0 47 43 8b ba 01 02 00 00 48 c7 c1 60 4a 43 8b e8 a7 9e f6 fd 90 <0f> 0b e8 4f aa 8d fe 48 c7 c7 20 4a 43 8b 48 c7 c6 e0 47 43 8b ba
RSP: 0018:ffffc90004bc7c20 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88805f47c8f0 RCX: 2ef9206547d89e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004bc7d60 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000978f29 R12: 0000000000000007
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000978f90
FS:  000055557e4e9500(0000) GS:ffff8881268c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffda71e8ff8 CR3: 000000002edc8000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vfs_unlink+0x39a/0x660 fs/namei.c:4586
 do_unlinkat+0x345/0x570 fs/namei.c:4650
 __do_sys_unlink fs/namei.c:4696 [inline]
 __se_sys_unlink fs/namei.c:4694 [inline]
 __x64_sys_unlink+0x47/0x50 fs/namei.c:4694
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3cedb3e197
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 57 00 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:00007ffda71e97e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3cedb3e197
RDX: 00007ffda71e9810 RSI: 00007ffda71e98a0 RDI: 00007ffda71e98a0
RBP: 00007ffda71e98a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffda71ea990
R13: 00007f3cedbc1c05 R14: 000000000004677d R15: 00007ffda71eba60
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_unlink+0x9ea/0xa20 fs/jfs/namei.c:513
Code: e9 4c fb ff ff e8 76 aa 8d fe 48 c7 c7 20 4a 43 8b 48 c7 c6 e0 47 43 8b ba 01 02 00 00 48 c7 c1 60 4a 43 8b e8 a7 9e f6 fd 90 <0f> 0b e8 4f aa 8d fe 48 c7 c7 20 4a 43 8b 48 c7 c6 e0 47 43 8b ba
RSP: 0018:ffffc90004bc7c20 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88805f47c8f0 RCX: 2ef9206547d89e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004bc7d60 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff52000978f29 R12: 0000000000000007
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000978f90
FS:  000055557e4e9500(0000) GS:ffff8881268c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffda71e8ff8 CR3: 000000002edc8000 CR4: 00000000003526f0