general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] CPU: 0 PID: 332 Comm: syz-executor.0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:vfs_rename+0x106/0xef0 fs/namei.c:4371 Code: c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 a2 f7 f4 ff 48 8b 03 48 89 44 24 50 4c 89 74 24 40 4d 8d 6e 30 4c 89 eb 48 c1 eb 03 <42> 80 3c 3b 00 74 08 4c 89 ef e8 7b f7 f4 ff 49 8b 55 00 4c 89 64 RSP: 0018:ffffc90000d37c20 EFLAGS: 00010203 RAX: ffff888121c8ad00 RBX: 0000000000000007 RCX: 0000000000000000 RDX: ffff88810bce8000 RSI: 0000000000400000 RDI: 0000000000200000 RBP: ffffc90000d37d70 R08: ffffc90000d37e30 R09: 0000000000000000 R10: ffffed10234ffc72 R11: 1ffff110234ffc71 R12: ffff888121c81b00 R13: 000000000000003c R14: 000000000000000c R15: dffffc0000000000 FS: 00007f0107afa6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020007000 CR3: 000000010c0d1000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0x6f8/0xe60 fs/namei.c:4619 __do_sys_rename fs/namei.c:4670 [inline] __se_sys_rename fs/namei.c:4668 [inline] __x64_sys_rename+0x86/0x90 fs/namei.c:4668 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f0107fbada9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0107afa0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f01080e9120 RCX: 00007f0107fbada9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007f010800747a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f01080e9120 R15: 00007ffcd846a438 Modules linked in: ---[ end trace 5914bb2dd2590926 ]--- RIP: 0010:vfs_rename+0x106/0xef0 fs/namei.c:4371 Code: c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 a2 f7 f4 ff 48 8b 03 48 89 44 24 50 4c 89 74 24 40 4d 8d 6e 30 4c 89 eb 48 c1 eb 03 <42> 80 3c 3b 00 74 08 4c 89 ef e8 7b f7 f4 ff 49 8b 55 00 4c 89 64 RSP: 0018:ffffc90000d37c20 EFLAGS: 00010203 RAX: ffff888121c8ad00 RBX: 0000000000000007 RCX: 0000000000000000 RDX: ffff88810bce8000 RSI: 0000000000400000 RDI: 0000000000200000 RBP: ffffc90000d37d70 R08: ffffc90000d37e30 R09: 0000000000000000 R10: ffffed10234ffc72 R11: 1ffff110234ffc71 R12: ffff888121c81b00 R13: 000000000000003c R14: 000000000000000c R15: dffffc0000000000 FS: 00007f0107afa6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000a000 CR3: 000000010c0d1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c1 e8 03 shr $0x3,%eax 3: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 8: 74 08 je 0x12 a: 48 89 df mov %rbx,%rdi d: e8 a2 f7 f4 ff call 0xfff4f7b4 12: 48 8b 03 mov (%rbx),%rax 15: 48 89 44 24 50 mov %rax,0x50(%rsp) 1a: 4c 89 74 24 40 mov %r14,0x40(%rsp) 1f: 4d 8d 6e 30 lea 0x30(%r14),%r13 23: 4c 89 eb mov %r13,%rbx 26: 48 c1 eb 03 shr $0x3,%rbx * 2a: 42 80 3c 3b 00 cmpb $0x0,(%rbx,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 7b f7 f4 ff call 0xfff4f7b4 39: 49 8b 55 00 mov 0x0(%r13),%rdx 3d: 4c rex.WR 3e: 89 .byte 0x89 3f: 64 fs