general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 0 PID: 5039 Comm: syz-executor917 Not tainted 6.5.0-rc4-next-20230804-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:generic_hwtstamp_ioctl_lower+0xf7/0x3c0 net/core/dev_ioctl.c:419
Code: 24 08 48 c1 e8 03 42 80 3c 30 00 0f 85 ad 02 00 00 48 ba 00 00 00 00 00 fc ff df 4d 8b 75 10 49 8d 7e 10 48 89 f8 48 c1 e8 03 <0f> b6 0c 10 49 8d 46 27 48 89 c6 83 e0 07 48 c1 ee 03 0f b6 14 16
RSP: 0018:ffffc90003a7f790 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff888027174000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8422693b RDI: 0000000000000010
RBP: ffffc90003a7f880 R08: 0000000000000006 R09: 0000000000000003
R10: ffffc90003a7f7eb R11: 0000000000094000 R12: 1ffff9200074fef6
R13: ffffc90003a7f8f0 R14: 0000000000000000 R15: ffffffff8b9f4300
FS: 000055555640b380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 0000000073353000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
generic_hwtstamp_get_lower net/core/dev_ioctl.c:443 [inline]
generic_hwtstamp_get_lower+0xe4/0x120 net/core/dev_ioctl.c:431
dev_set_hwtstamp_phylib+0x3ae/0x620 net/core/dev_ioctl.c:338
dev_set_hwtstamp+0x413/0x5b0 net/core/dev_ioctl.c:395
dev_ifsioc+0x629/0x1090 net/core/dev_ioctl.c:597
dev_ioctl+0x224/0x1090 net/core/dev_ioctl.c:783
sock_do_ioctl+0x1fc/0x290 net/socket.c:1206
sock_ioctl+0x205/0x6d0 net/socket.c:1309
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f8466771419
Code: 48 83 c4 28 c3 e8 d7 19 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc3b8379e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f84667be390 RCX: 00007f8466771419
RDX: 0000000020000080 RSI: 00000000000089b0 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000555500000000 R09: 0000555500000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc3b837a30
R13: 00007ffc3b837a00 R14: 0000000000000001 R15: 00007ffc3b837a30
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_hwtstamp_ioctl_lower+0xf7/0x3c0 net/core/dev_ioctl.c:419
Code: 24 08 48 c1 e8 03 42 80 3c 30 00 0f 85 ad 02 00 00 48 ba 00 00 00 00 00 fc ff df 4d 8b 75 10 49 8d 7e 10 48 89 f8 48 c1 e8 03 <0f> b6 0c 10 49 8d 46 27 48 89 c6 83 e0 07 48 c1 ee 03 0f b6 14 16
RSP: 0018:ffffc90003a7f790 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff888027174000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: ffffffff8422693b RDI: 0000000000000010
RBP: ffffc90003a7f880 R08: 0000000000000006 R09: 0000000000000003
R10: ffffc90003a7f7eb R11: 0000000000094000 R12: 1ffff9200074fef6
R13: ffffc90003a7f8f0 R14: 0000000000000000 R15: ffffffff8b9f4300
FS: 000055555640b380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc9a12e198 CR3: 0000000073353000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 24 08 and $0x8,%al
2: 48 c1 e8 03 shr $0x3,%rax
6: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
b: 0f 85 ad 02 00 00 jne 0x2be
11: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
18: fc ff df
1b: 4d 8b 75 10 mov 0x10(%r13),%r14
1f: 49 8d 7e 10 lea 0x10(%r14),%rdi
23: 48 89 f8 mov %rdi,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 0f b6 0c 10 movzbl (%rax,%rdx,1),%ecx <-- trapping instruction
2e: 49 8d 46 27 lea 0x27(%r14),%rax
32: 48 89 c6 mov %rax,%rsi
35: 83 e0 07 and $0x7,%eax
38: 48 c1 ee 03 shr $0x3,%rsi
3c: 0f b6 14 16 movzbl (%rsi,%rdx,1),%edx