general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f] CPU: 1 PID: 13371 Comm: syz.3.3820 Tainted: G W 5.10.218-syzkaller-00638-g3feee789f446 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:vfs_rename+0x106/0xeb0 fs/namei.c:4371 Code: c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 d2 05 f4 ff 48 8b 03 48 89 44 24 58 4c 89 74 24 38 4d 8d 7e 30 4d 89 fe 49 c1 ee 03 <43> 80 3c 26 00 74 08 4c 89 ff e8 ab 05 f4 ff 49 8b 07 48 89 44 24 RSP: 0018:ffffc90000ba7b80 EFLAGS: 00010206 RAX: ffff888110344480 RBX: ffff88811024ff10 RCX: 0000000000040000 RDX: ffff8881118ea780 RSI: 0000000000200000 RDI: 0000000000200000 RBP: ffffc90000ba7cd0 R08: ffffffff81b4383f R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888110344d80 R14: 0000000000000009 R15: 000000000000004a FS: 00007f6eb33306c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffd CR3: 000000011ed23000 CR4: 00000000003526a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0xa56/0x1240 fs/namei.c:4619 __do_sys_renameat2 fs/namei.c:4657 [inline] __se_sys_renameat2 fs/namei.c:4654 [inline] __x64_sys_renameat2+0xdd/0xf0 fs/namei.c:4654 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f6eb40f0bd9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6eb3330048 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007f6eb427f110 RCX: 00007f6eb40f0bd9 RDX: 0000000000000004 RSI: 0000000020000180 RDI: 0000000000000004 RBP: 00007f6eb415fe60 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200001c0 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f6eb427f110 R15: 00007fff76f69358 Modules linked in: ---[ end trace 892d8ddc5771f9dc ]--- RIP: 0010:vfs_rename+0x106/0xeb0 fs/namei.c:4371 Code: c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 d2 05 f4 ff 48 8b 03 48 89 44 24 58 4c 89 74 24 38 4d 8d 7e 30 4d 89 fe 49 c1 ee 03 <43> 80 3c 26 00 74 08 4c 89 ff e8 ab 05 f4 ff 49 8b 07 48 89 44 24 RSP: 0018:ffffc90000ba7b80 EFLAGS: 00010206 RAX: ffff888110344480 RBX: ffff88811024ff10 RCX: 0000000000040000 RDX: ffff8881118ea780 RSI: 0000000000200000 RDI: 0000000000200000 RBP: ffffc90000ba7cd0 R08: ffffffff81b4383f R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888110344d80 R14: 0000000000000009 R15: 000000000000004a FS: 00007f6eb33306c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffd CR3: 000000011ed23000 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 d2 05 f4 ff call 0xfff405e4 12: 48 8b 03 mov (%rbx),%rax 15: 48 89 44 24 58 mov %rax,0x58(%rsp) 1a: 4c 89 74 24 38 mov %r14,0x38(%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 ab 05 f4 ff call 0xfff405e4 39: 49 8b 07 mov (%r15),%rax 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 44 rex.R 3f: 24 .byte 0x24