general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 288 Comm: syz-executor338 Not tainted 5.15.189-syzkaller-00091-gf32b52534f1d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:dir_rename fs/incfs/vfs.c:1402 [inline]
RIP: 0010:dir_rename_wrap+0x167/0x6a0 fs/incfs/vfs.c:91
Code: 89 e7 e8 fc 44 a5 ff 4d 8b 34 24 eb 08 e8 11 ca 66 ff 45 31 f6 49 83 c6 08 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 cb 44 a5 ff 4d 8b 36 4d 85 f6 0f 84
RSP: 0018:ffffc900009e7a40 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff888121532860 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900009e7b70 R08: dffffc0000000000 R09: fffff5200013cf39
R10: fffff5200013cf39 R11: 1ffff9200013cf38 R12: ffff888120d84078
R13: 1ffff9200013cf54 R14: 0000000000000008 R15: ffff888121532800
FS: 00005555630cf480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 0000000124854000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
vfs_rename+0xbb6/0x10d0 fs/namei.c:4832
do_renameat2+0x7ed/0xf60 fs/namei.c:4985
__do_sys_rename fs/namei.c:5031 [inline]
__se_sys_rename fs/namei.c:5029 [inline]
__x64_sys_rename+0x86/0x90 fs/namei.c:5029
x64_sys_call+0x680/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:83
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f151a37ac49
Code: 48 83 c4 28 c3 e8 67 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd30c09d38 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 0073646165725f67 RCX: 00007f151a37ac49
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000200000000040
RBP: 00007ffd30c09d48 R08: 00007ffd30c09d48 R09: 00007f151a347bf0
R10: 00007ffd30c09d40 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd30c09fa8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
Modules linked in:
---[ end trace ab98c4e68a86fa72 ]---
RIP: 0010:dir_rename fs/incfs/vfs.c:1402 [inline]
RIP: 0010:dir_rename_wrap+0x167/0x6a0 fs/incfs/vfs.c:91
Code: 89 e7 e8 fc 44 a5 ff 4d 8b 34 24 eb 08 e8 11 ca 66 ff 45 31 f6 49 83 c6 08 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 cb 44 a5 ff 4d 8b 36 4d 85 f6 0f 84
RSP: 0018:ffffc900009e7a40 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff888121532860 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900009e7b70 R08: dffffc0000000000 R09: fffff5200013cf39
R10: fffff5200013cf39 R11: 1ffff9200013cf38 R12: ffff888120d84078
R13: 1ffff9200013cf54 R14: 0000000000000008 R15: ffff888121532800
FS: 00005555630cf480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ac2918d388 CR3: 0000000124854000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 e7 mov %esp,%edi
2: e8 fc 44 a5 ff call 0xffa54503
7: 4d 8b 34 24 mov (%r12),%r14
b: eb 08 jmp 0x15
d: e8 11 ca 66 ff call 0xff66ca23
12: 45 31 f6 xor %r14d,%r14d
15: 49 83 c6 08 add $0x8,%r14
19: 4c 89 f0 mov %r14,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 4c 89 f7 mov %r14,%rdi
33: e8 cb 44 a5 ff call 0xffa54503
38: 4d 8b 36 mov (%r14),%r14
3b: 4d 85 f6 test %r14,%r14
3e: 0f .byte 0xf
3f: 84 .byte 0x84