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: 68 Comm: kworker/0:1 Not tainted 5.10.157-syzkaller-01102-gf3226d86f8ce #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/0x580 net/sched/em_cmp.c:25
Code: 89 fd 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 a0 61 c3 fd 4c 8b 33 49 8d 5e 0a 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 dd 03 00 00 0f b7 1b 48 89 5d d0 c1 eb 08
RSP: 0018:ffffc9000024f0f8 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 000000000000000a RCX: ffff8881065fcf00
RDX: 0000000000000000 RSI: ffff88811388d2c0 RDI: ffff8881141c2500
RBP: ffffc9000024f130 R08: ffffffff83e3b005 R09: ffffc9000024f1c0
R10: fffff52000049e48 R11: 1ffff92000049e38 R12: ffffffff868e0510
R13: ffff8881141c2500 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff773eaff8 CR3: 00000001057f0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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:467 [inline]
basic_classify+0xd8/0x250 net/sched/cls_basic.c:48
__tcf_classify net/sched/cls_api.c:1550 [inline]
tcf_classify+0x161/0x430 net/sched/cls_api.c:1587
prio_classify net/sched/sch_prio.c:42 [inline]
prio_enqueue+0x1d0/0x6a0 net/sched/sch_prio.c:75
__dev_xmit_skb net/core/dev.c:3827 [inline]
__dev_queue_xmit+0xd71/0x2a20 net/core/dev.c:4141
dev_queue_xmit+0x17/0x20 net/core/dev.c:4209
neigh_hh_output include/net/neighbour.h:508 [inline]
neigh_output include/net/neighbour.h:522 [inline]
ip_finish_output2+0xb25/0xfd0 net/ipv4/ip_output.c:237
__ip_finish_output+0x412/0x750 net/ipv4/ip_output.c:259
ip_finish_output+0x1c9/0x1e0 net/ipv4/ip_output.c:325
NF_HOOK_COND include/linux/netfilter.h:293 [inline]
ip_output+0x1e9/0x410 net/ipv4/ip_output.c:439
dst_output include/net/dst.h:443 [inline]
ip_local_out+0x92/0xb0 net/ipv4/ip_output.c:126
iptunnel_xmit+0x45e/0x830 net/ipv4/ip_tunnel_core.c:82
udp_tunnel_xmit_skb+0x1b6/0x2c0 net/ipv4/udp_tunnel_core.c:190
send4+0x609/0xd30 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+0x1f2/0x510 drivers/net/wireguard/send.c:276
process_one_work+0x726/0xc10 kernel/workqueue.c:2296
worker_thread+0xb27/0x1550 kernel/workqueue.c:2442
kthread+0x349/0x3d0 kernel/kthread.c:313
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299
Modules linked in:
---[ end trace a14651166ff1a6b6 ]---
RIP: 0010:em_cmp_match+0x4e/0x580 net/sched/em_cmp.c:25
Code: 89 fd 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 a0 61 c3 fd 4c 8b 33 49 8d 5e 0a 48 89 d8 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 dd 03 00 00 0f b7 1b 48 89 5d d0 c1 eb 08
RSP: 0018:ffffc9000024f0f8 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 000000000000000a RCX: ffff8881065fcf00
RDX: 0000000000000000 RSI: ffff88811388d2c0 RDI: ffff8881141c2500
RBP: ffffc9000024f130 R08: ffffffff83e3b005 R09: ffffc9000024f1c0
R10: fffff52000049e48 R11: 1ffff92000049e38 R12: ffffffff868e0510
R13: ffff8881141c2500 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff773eaff8 CR3: 00000001057f0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 fd mov %edi,%ebp
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 a0 61 c3 fd callq 0xfdc361bc
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 dd 03 00 00 jne 0x413
36: 0f b7 1b movzwl (%rbx),%ebx
39: 48 89 5d d0 mov %rbx,-0x30(%rbp)
3d: c1 eb 08 shr $0x8,%ebx