BUG at fs/jfs/namei.c:514 assert(ip->i_nlink)
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kernel BUG at fs/jfs/namei.c:514!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5937 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:jfs_unlink+0x9bd/0x9f0 fs/jfs/namei.c:514
Code: e9 68 fb ff ff e8 13 79 6c fe 48 c7 c7 60 32 0b 8c 48 c7 c6 20 30 0b 8c ba 02 02 00 00 48 c7 c1 a0 32 0b 8c e8 14 92 ce fd 90 <0f> 0b e8 ec 78 6c fe 48 c7 c7 60 32 0b 8c 48 c7 c6 20 30 0b 8c ba
RSP: 0018:ffffc900035e7c00 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88805b8cbb20 RCX: a510d484bb734400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900035e7d40 R08: ffffc900035e7987 R09: 1ffff920006bcf30
R10: dffffc0000000000 R11: fffff520006bcf31 R12: 0000000000000001
R13: 1ffff920006bcf8c R14: 0000000000000000 R15: dffffc0000000000
FS:  0000555577525500(0000) GS:ffff888125555000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb15d9577b0 CR3: 000000002fc3e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vfs_unlink+0x272/0x6c0 fs/namei.c:5470
 filename_unlinkat+0x3cd/0x610 fs/namei.c:5540
 __do_sys_unlink fs/namei.c:5575 [inline]
 __se_sys_unlink+0x2e/0x140 fs/namei.c:5572
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb15d99b717
Code: 73 01 c3 48 c7 c1 e8 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 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe1bf7c848 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb15d99b717
RDX: 00007ffe1bf7c870 RSI: 00007ffe1bf7c900 RDI: 00007ffe1bf7c900
RBP: 00007ffe1bf7c900 R08: 00007ffe1bf7d900 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe1bf7d9f0
R13: 00007fb15da31ef0 R14: 0000000000014409 R15: 00007ffe1bf7eac0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_unlink+0x9bd/0x9f0 fs/jfs/namei.c:514
Code: e9 68 fb ff ff e8 13 79 6c fe 48 c7 c7 60 32 0b 8c 48 c7 c6 20 30 0b 8c ba 02 02 00 00 48 c7 c1 a0 32 0b 8c e8 14 92 ce fd 90 <0f> 0b e8 ec 78 6c fe 48 c7 c7 60 32 0b 8c 48 c7 c6 20 30 0b 8c ba
RSP: 0018:ffffc900035e7c00 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88805b8cbb20 RCX: a510d484bb734400
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc900035e7d40 R08: ffffc900035e7987 R09: 1ffff920006bcf30
R10: dffffc0000000000 R11: fffff520006bcf31 R12: 0000000000000001
R13: 1ffff920006bcf8c R14: 0000000000000000 R15: dffffc0000000000
FS:  0000555577525500(0000) GS:ffff888125555000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0008045a0 CR3: 000000002fc3e000 CR4: 00000000003526f0