general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f] CPU: 0 PID: 15341 Comm: syz.8.3868 Tainted: G W 5.10.236-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 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 c2 22 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 9b 22 f4 ff 49 8b 07 48 89 44 24 RSP: 0018:ffffc90000c97ba0 EFLAGS: 00010206 RAX: ffff88812a58b600 RBX: ffff88810047dad0 RCX: 0000000000080000 RDX: ffff8881145862c0 RSI: 0000000000400000 RDI: 0000000000200000 RBP: ffffc90000c97cf0 R08: ffffffff81b43b7f R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812a588d80 R14: 0000000000000009 R15: 0000000000000048 FS: 00007f872426c6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000013e209000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_renameat2+0xa56/0x1240 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: 0033:0x7f8725c24169 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:00007f872426c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f8725e4c080 RCX: 00007f8725c24169 RDX: 0000000000000000 RSI: 00002000000000c0 RDI: 0000200000000100 RBP: 00007f8725ca6a68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8725e4c080 R15: 00007ffd2f673a68 Modules linked in: ---[ end trace a7ccfece4b48c795 ]--- 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 c2 22 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 9b 22 f4 ff 49 8b 07 48 89 44 24 RSP: 0018:ffffc90000c97ba0 EFLAGS: 00010206 RAX: ffff88812a58b600 RBX: ffff88810047dad0 RCX: 0000000000080000 RDX: ffff8881145862c0 RSI: 0000000000400000 RDI: 0000000000200000 RBP: ffffc90000c97cf0 R08: ffffffff81b43b7f R09: 0000000000000000 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88812a588d80 R14: 0000000000000009 R15: 0000000000000048 FS: 00007f872426c6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f347adb2000 CR3: 000000013e209000 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 c2 22 f4 ff call 0xfff422d4 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 9b 22 f4 ff call 0xfff422d4 39: 49 8b 07 mov (%r15),%rax 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 44 rex.R 3f: 24 .byte 0x24