netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 19563 Comm: syz-executor.2 Not tainted 5.15.148-syzkaller-00718-g993bed180178 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:dequeue_head net/sched/sch_fq_codel.c:120 [inline]
RIP: 0010:fq_codel_drop net/sched/sch_fq_codel.c:168 [inline]
RIP: 0010:fq_codel_enqueue+0xd45/0x1540 net/sched/sch_fq_codel.c:230
Code: 5c 24 08 4c 89 6c 24 38 4c 89 f0 48 8b 4c 24 30 42 80 3c 31 00 74 08 4c 89 e7 e8 36 09 aa fd 4d 8b 24 24 4d 89 e5 49 c1 ed 03 <43> 80 7c 35 00 00 74 08 4c 89 e7 e8 1b 09 aa fd 49 8b 1c 24 48 8b
RSP: 0018:ffffc90000faf5a0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1103495a000
RDX: ffff8881a4ad0000 RSI: 00000000000001b0 RDI: 00000000000001b1
RBP: ffffc90000faf708 R08: ffffffff840826c2 R09: ffffffff83e41446
R10: 0000000000000002 R11: ffff88819a1ca780 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007faced4176c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001540 CR3: 00000001a4e6b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000000000f
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
dev_qdisc_enqueue+0x50/0x190 net/core/dev.c:3819
__dev_xmit_skb net/core/dev.c:3903 [inline]
__dev_queue_xmit+0xd8a/0x2e70 net/core/dev.c:4220
dev_queue_xmit+0x17/0x20 net/core/dev.c:4288
packet_snd net/packet/af_packet.c:3039 [inline]
packet_sendmsg+0x47a9/0x6350 net/packet/af_packet.c:3070
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
__sys_sendto+0x564/0x720 net/socket.c:2058
__do_sys_sendto net/socket.c:2070 [inline]
__se_sys_sendto net/socket.c:2066 [inline]
__x64_sys_sendto+0xe5/0x100 net/socket.c:2066
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7facee695da9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007faced4170c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007facee7c3f80 RCX: 00007facee695da9
RDX: 0000000000000015 RSI: 0000000020000000 RDI: 0000000000000009
RBP: 00007facee6e247a R08: 0000000020000140 R09: 0000000000000014
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007facee7c3f80 R15: 00007ffdc732bc78
</TASK>
Modules linked in:
---[ end trace 3e00b251e64d08b9 ]---
RIP: 0010:dequeue_head net/sched/sch_fq_codel.c:120 [inline]
RIP: 0010:fq_codel_drop net/sched/sch_fq_codel.c:168 [inline]
RIP: 0010:fq_codel_enqueue+0xd45/0x1540 net/sched/sch_fq_codel.c:230
Code: 5c 24 08 4c 89 6c 24 38 4c 89 f0 48 8b 4c 24 30 42 80 3c 31 00 74 08 4c 89 e7 e8 36 09 aa fd 4d 8b 24 24 4d 89 e5 49 c1 ed 03 <43> 80 7c 35 00 00 74 08 4c 89 e7 e8 1b 09 aa fd 49 8b 1c 24 48 8b
RSP: 0018:ffffc90000faf5a0 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff1103495a000
RDX: ffff8881a4ad0000 RSI: 00000000000001b0 RDI: 00000000000001b1
RBP: ffffc90000faf708 R08: ffffffff840826c2 R09: ffffffff83e41446
R10: 0000000000000002 R11: ffff88819a1ca780 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007faced4176c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001540 CR3: 00000001a4e6b000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000000000f
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 5c pop %rsp
1: 24 08 and $0x8,%al
3: 4c 89 6c 24 38 mov %r13,0x38(%rsp)
8: 4c 89 f0 mov %r14,%rax
b: 48 8b 4c 24 30 mov 0x30(%rsp),%rcx
10: 42 80 3c 31 00 cmpb $0x0,(%rcx,%r14,1)
15: 74 08 je 0x1f
17: 4c 89 e7 mov %r12,%rdi
1a: e8 36 09 aa fd call 0xfdaa0955
1f: 4d 8b 24 24 mov (%r12),%r12
23: 4d 89 e5 mov %r12,%r13
26: 49 c1 ed 03 shr $0x3,%r13
* 2a: 43 80 7c 35 00 00 cmpb $0x0,0x0(%r13,%r14,1) <-- trapping instruction
30: 74 08 je 0x3a
32: 4c 89 e7 mov %r12,%rdi
35: e8 1b 09 aa fd call 0xfdaa0955
3a: 49 8b 1c 24 mov (%r12),%rbx
3e: 48 rex.W
3f: 8b .byte 0x8b