general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 6 Comm: kworker/0:0 Not tainted 5.15.77-syzkaller-00764-g7048384c9872 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: wg-crypt-wg2 wg_packet_tx_worker
RIP: 0010:em_cmp_match+0x4e/0x5f0 net/sched/em_cmp.c:25
Code: 66 fd 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 90 ec a8 fd 4c 8b 33 49 8d 5e 0a 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 0f 04 00 00 0f b7 1b 48 89 5d d0 c1 eb 08
RSP: 0018:ffffc90000066fd8 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 000000000000000a RCX: ffff88810034e2c0
RDX: 0000000000000000 RSI: ffff88811490ba00 RDI: ffff88811bd683c0
RBP: ffffc90000067010 R08: ffffffff840b00b5 R09: ffffc900000670a0
R10: fffff5200000ce24 R11: 1ffff9200000ce14 R12: ffffffff86f34d10
R13: ffff88811bd683c0 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 000000011eed7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
tcf_em_match net/sched/ematch.c:492 [inline]
__tcf_em_tree_match+0x194/0x720 net/sched/ematch.c:518
tcf_em_tree_match include/net/pkt_cls.h:463 [inline]
basic_classify+0xd8/0x250 net/sched/cls_basic.c:48
__tcf_classify net/sched/cls_api.c:1549 [inline]
tcf_classify+0x161/0x430 net/sched/cls_api.c:1589
prio_classify net/sched/sch_prio.c:42 [inline]
prio_enqueue+0x1d3/0x6a0 net/sched/sch_prio.c:75
dev_qdisc_enqueue net/core/dev.c:3792 [inline]
__dev_xmit_skb+0x35c/0x1650 net/core/dev.c:3876
__dev_queue_xmit+0x8f3/0x1b50 net/core/dev.c:4193
dev_queue_xmit+0x17/0x20 net/core/dev.c:4261
neigh_hh_output include/net/neighbour.h:508 [inline]
neigh_output include/net/neighbour.h:522 [inline]
ip_finish_output2+0xc0f/0xf00 net/ipv4/ip_output.c:228
__ip_finish_output+0x163/0x370
ip_finish_output+0x20b/0x220 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:299 [inline]
ip_output+0x1e9/0x410 net/ipv4/ip_output.c:430
dst_output include/net/dst.h:450 [inline]
ip_local_out+0x92/0xb0 net/ipv4/ip_output.c:126
iptunnel_xmit+0x4a2/0x890 net/ipv4/ip_tunnel_core.c:82
udp_tunnel_xmit_skb+0x1b6/0x2c0 net/ipv4/udp_tunnel_core.c:175
send4+0x78d/0xd20 drivers/net/wireguard/socket.c:85
wg_socket_send_skb_to_peer+0xd5/0x1d0 drivers/net/wireguard/socket.c:175
wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline]
wg_packet_tx_worker+0x202/0x560 drivers/net/wireguard/send.c:276
process_one_work+0x6db/0xc00 kernel/workqueue.c:2313
worker_thread+0xb3e/0x1340 kernel/workqueue.c:2460
kthread+0x41c/0x500 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
</TASK>
Modules linked in:
---[ end trace 96ef6555c9d22182 ]---
RIP: 0010:em_cmp_match+0x4e/0x5f0 net/sched/em_cmp.c:25
Code: 66 fd 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 90 ec a8 fd 4c 8b 33 49 8d 5e 0a 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 0f 04 00 00 0f b7 1b 48 89 5d d0 c1 eb 08
RSP: 0018:ffffc90000066fd8 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 000000000000000a RCX: ffff88810034e2c0
RDX: 0000000000000000 RSI: ffff88811490ba00 RDI: ffff88811bd683c0
RBP: ffffc90000067010 R08: ffffffff840b00b5 R09: ffffc900000670a0
R10: fffff5200000ce24 R11: 1ffff9200000ce14 R12: ffffffff86f34d10
R13: ffff88811bd683c0 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 000000011eed7000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 66 fd data16 std
2: 48 83 c3 08 add $0x8,%rbx
6: 48 89 d8 mov %rbx,%rax
9: 48 c1 e8 03 shr $0x3,%rax
d: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1)
12: 74 08 je 0x1c
14: 48 89 df mov %rbx,%rdi
17: e8 90 ec a8 fd callq 0xfda8ecac
1c: 4c 8b 33 mov (%rbx),%r14
1f: 49 8d 5e 0a lea 0xa(%r14),%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 8a 04 38 mov (%rax,%r15,1),%al <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 0f 04 00 00 jne 0x445
36: 0f b7 1b movzwl (%rbx),%ebx
39: 48 89 5d d0 mov %rbx,-0x30(%rbp)
3d: c1 eb 08 shr $0x8,%ebx