general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f] CPU: 1 PID: 292 Comm: syz-executor293 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 RIP: 0010:vfs_rename+0x103/0xda0 fs/namei.c:4376 Code: c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 05 0a f4 ff 48 8b 03 48 89 44 24 48 4c 89 74 24 20 4d 8d 7e 30 4d 89 fe 49 c1 ee 03 <43> 80 3c 26 00 74 08 4c 89 ff e8 de 09 f4 ff 49 8b 07 48 89 44 24 RSP: 0018:ffffc90000b57ba0 EFLAGS: 00010203 RAX: ffff88811c4f2d00 RBX: ffff88811c46d690 RCX: ffff88811e7713c0 RDX: ffff88811e7713c0 RSI: 0000000000400000 RDI: 0000000000200000 RBP: ffffc90000b57cf0 R08: ffffffff81b416cc R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811c4edb00 R14: 0000000000000007 R15: 000000000000003c FS: 00007f12c24746c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020007000 CR3: 000000011991d000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0x88d/0x1130 fs/namei.c:4605 __do_sys_rename fs/namei.c:4656 [inline] __se_sys_rename fs/namei.c:4654 [inline] __x64_sys_rename+0x86/0x90 fs/namei.c:4654 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f12c24f4939 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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:00007f12c2474218 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f12c2585408 RCX: 00007f12c24f4939 RDX: 00007f12c24d20a6 RSI: 0000000020000140 RDI: 0000000020000100 RBP: 00007f12c2585400 R08: 00007ffc67d370e7 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f12c25520a4 R13: 000000000000006e R14: 0030656c69662f30 R15: 00007f12c25500a0 Modules linked in: ---[ end trace ab7c42a90b1fb67e ]--- RIP: 0010:vfs_rename+0x103/0xda0 fs/namei.c:4376 Code: c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 05 0a f4 ff 48 8b 03 48 89 44 24 48 4c 89 74 24 20 4d 8d 7e 30 4d 89 fe 49 c1 ee 03 <43> 80 3c 26 00 74 08 4c 89 ff e8 de 09 f4 ff 49 8b 07 48 89 44 24 RSP: 0018:ffffc90000b57ba0 EFLAGS: 00010203 RAX: ffff88811c4f2d00 RBX: ffff88811c46d690 RCX: ffff88811e7713c0 RDX: ffff88811e7713c0 RSI: 0000000000400000 RDI: 0000000000200000 RBP: ffffc90000b57cf0 R08: ffffffff81b416cc R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811c4edb00 R14: 0000000000000007 R15: 000000000000003c FS: 00007f12c24746c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020007000 CR3: 000000011991d000 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 20 00 cmpb $0x0,(%rax,%r12,1) 8: 74 08 je 0x12 a: 48 89 df mov %rbx,%rdi d: e8 05 0a f4 ff call 0xfff40a17 12: 48 8b 03 mov (%rbx),%rax 15: 48 89 44 24 48 mov %rax,0x48(%rsp) 1a: 4c 89 74 24 20 mov %r14,0x20(%rsp) 1f: 4d 8d 7e 30 lea 0x30(%r14),%r15 23: 4d 89 fe mov %r15,%r14 26: 49 c1 ee 03 shr $0x3,%r14 * 2a: 43 80 3c 26 00 cmpb $0x0,(%r14,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ff mov %r15,%rdi 34: e8 de 09 f4 ff call 0xfff40a17 39: 49 8b 07 mov (%r15),%rax 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 44 rex.R 3f: 24 .byte 0x24