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: 291 Comm: syz-executor284 Not tainted 5.10.209-syzkaller-00001-ge7daca75b4c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:do_unlinkat+0x3b2/0x8b0 fs/namei.c:4035
Code: de e8 b2 b0 b6 ff 31 c0 81 fb 00 00 20 00 0f 94 c0 41 bf ec ff ff ff 41 29 c7 e9 99 00 00 00 49 8d 7d 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 d2 25 f4 ff 49 8b 45 30 48 89 44 24 28 4c
RSP: 0018:ffffc90000b77da0 EFLAGS: 00010206
RAX: 0000000000000009 RBX: 0000000000000000 RCX: ffff88811e803b40
RDX: ffff88811e803b40 RSI: 0000000000000000 RDI: 0000000000000049
RBP: ffffc90000b77f18 R08: ffffffff81b3fa93 R09: ffffed1023923850
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000019 R14: 1ffff1102392384a R15: dffffc0000000000
FS: 00007f2253d206c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2253d20d58 CR3: 000000011e8b3000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__do_sys_unlink fs/namei.c:4088 [inline]
__se_sys_unlink fs/namei.c:4086 [inline]
__x64_sys_unlink+0x49/0x50 fs/namei.c:4086
do_syscall_64+0x34/0x70
entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f2253d7f4b9
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:00007f2253d20218 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f2253e0c3f8 RCX: 00007f2253d7f4b9
RDX: 00007f2253d7f4b9 RSI: 00000000000f4240 RDI: 0000000020000100
RBP: 00007f2253e0c3f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2253dd9024
R13: 000000000000006e R14: 0030656c69662f30 R15: 2f30656c69662f2e
Modules linked in:
---[ end trace 8c5fb027d667fa19 ]---
RIP: 0010:do_unlinkat+0x3b2/0x8b0 fs/namei.c:4035
Code: de e8 b2 b0 b6 ff 31 c0 81 fb 00 00 20 00 0f 94 c0 41 bf ec ff ff ff 41 29 c7 e9 99 00 00 00 49 8d 7d 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 d2 25 f4 ff 49 8b 45 30 48 89 44 24 28 4c
RSP: 0018:ffffc90000b77da0 EFLAGS: 00010206
RAX: 0000000000000009 RBX: 0000000000000000 RCX: ffff88811e803b40
RDX: ffff88811e803b40 RSI: 0000000000000000 RDI: 0000000000000049
RBP: ffffc90000b77f18 R08: ffffffff81b3fa93 R09: ffffed1023923850
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000019 R14: 1ffff1102392384a R15: dffffc0000000000
FS: 00007f2253d206c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000061ba0c CR3: 000000011e8b3000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: de e8 fsubrp %st,%st(0)
2: b2 b0 mov $0xb0,%dl
4: b6 ff mov $0xff,%dh
6: 31 c0 xor %eax,%eax
8: 81 fb 00 00 20 00 cmp $0x200000,%ebx
e: 0f 94 c0 sete %al
11: 41 bf ec ff ff ff mov $0xffffffec,%r15d
17: 41 29 c7 sub %eax,%r15d
1a: e9 99 00 00 00 jmp 0xb8
1f: 49 8d 7d 30 lea 0x30(%r13),%rdi
23: 48 89 f8 mov %rdi,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 05 je 0x36
31: e8 d2 25 f4 ff call 0xfff42608
36: 49 8b 45 30 mov 0x30(%r13),%rax
3a: 48 89 44 24 28 mov %rax,0x28(%rsp)
3f: 4c rex.WR