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: 0 UID: 0 PID: 6314 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+0x9bc/0x9f0 fs/jfs/namei.c:514
Code: fe e9 68 fb ff ff e8 33 e6 71 fe 48 c7 c7 a0 85 c5 8b 48 c7 c6 60 83 c5 8b ba 02 02 00 00 48 c7 c1 e0 85 c5 8b e8 c4 92 d6 fd <0f> 0b e8 0d e6 71 fe 48 c7 c7 a0 85 c5 8b 48 c7 c6 60 83 c5 8b ba
RSP: 0018:ffffc90003407c00 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88805d7031f8 RCX: 2b36b219cb0ebf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003407d40 R08: ffffc90003407987 R09: 1ffff92000680f30
R10: dffffc0000000000 R11: fffff52000680f31 R12: 0000000000000001
R13: 1ffff92000680f8c R14: 0000000000000000 R15: dffffc0000000000
FS:  000055555d708500(0000) GS:ffff888125a1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555d72ba68 CR3: 0000000048a10000 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+0xe8/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb0f4f9b717
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:00007fffa98aea38 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb0f4f9b717
RDX: 00007fffa98aea60 RSI: 00007fffa98aeaf0 RDI: 00007fffa98aeaf0
RBP: 00007fffa98aeaf0 R08: 00007fffa98afaf0 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007fffa98afbe0
R13: 00007fb0f5031ef0 R14: 000000000001e734 R15: 00007fffa98b0cb0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_unlink+0x9bc/0x9f0 fs/jfs/namei.c:514
Code: fe e9 68 fb ff ff e8 33 e6 71 fe 48 c7 c7 a0 85 c5 8b 48 c7 c6 60 83 c5 8b ba 02 02 00 00 48 c7 c1 e0 85 c5 8b e8 c4 92 d6 fd <0f> 0b e8 0d e6 71 fe 48 c7 c7 a0 85 c5 8b 48 c7 c6 60 83 c5 8b ba
RSP: 0018:ffffc90003407c00 EFLAGS: 00010246
RAX: 000000000000002d RBX: ffff88805d7031f8 RCX: 2b36b219cb0ebf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003407d40 R08: ffffc90003407987 R09: 1ffff92000680f30
R10: dffffc0000000000 R11: fffff52000680f31 R12: 0000000000000001
R13: 1ffff92000680f8c R14: 0000000000000000 R15: dffffc0000000000
FS:  000055555d708500(0000) GS:ffff888125b1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00839f000 CR3: 0000000048a10000 CR4: 00000000003526f0