Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 3 PID: 5233 Comm: kworker/3:4 Not tainted 6.9.0-syzkaller-11952-gc760b3725e52 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: wg-crypt-wg2 wg_packet_decrypt_worker
RIP: 0010:rt6_get_pcpu_route net/ipv6/route.c:1407 [inline]
RIP: 0010:ip6_pol_route+0x3bc/0x1150 net/ipv6/route.c:2262
Code: f8 48 85 ed 0f 84 52 03 00 00 e8 7f f2 03 f8 48 8d bd 98 00 00 00 49 89 ec 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a3 08 00 00 8b 85 98 00 00 00
RSP: 0018:ffffc900005f02f0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff88805d07b980 RCX: ffffffff898a92e3
RDX: 0000000000000017 RSI: ffffffff898a92f1 RDI: 00000000000000bf
RBP: 0000000000000027 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000027 R11: 0000000000000003 R12: 0000000000000027
R13: 1ffff920000be062 R14: 0000000000000080 R15: ffffc900005f0370
FS: 0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000005721bf4c CR3: 000000000d97a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pol_lookup_func include/net/ip6_fib.h:616 [inline]
fib6_rule_lookup+0x536/0x720 net/ipv6/fib6_rules.c:116
ip6_route_input_lookup net/ipv6/route.c:2298 [inline]
ip6_route_input+0x60b/0xc10 net/ipv6/route.c:2594
ip6_rcv_finish_core.constprop.0+0x1a0/0x5d0 net/ipv6/ip6_input.c:66
ip6_list_rcv_finish.constprop.0+0x213/0xb50 net/ipv6/ip6_input.c:131
ip6_sublist_rcv net/ipv6/ip6_input.c:320 [inline]
ipv6_list_rcv+0x33d/0x450 net/ipv6/ip6_input.c:355
__netif_receive_skb_list_ptype net/core/dev.c:5667 [inline]
__netif_receive_skb_list_core+0x558/0x950 net/core/dev.c:5715
__netif_receive_skb_list net/core/dev.c:5767 [inline]
netif_receive_skb_list_internal+0x753/0xda0 net/core/dev.c:5859
gro_normal_list include/net/gro.h:515 [inline]
gro_normal_list include/net/gro.h:511 [inline]
napi_complete_done+0x23f/0x9a0 net/core/dev.c:6202
wg_packet_rx_poll+0xcb7/0x2110 drivers/net/wireguard/receive.c:488
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6721
napi_poll net/core/dev.c:6790 [inline]
net_rx_action+0x9b6/0xf10 net/core/dev.c:6906
handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
do_softirq kernel/softirq.c:455 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:442
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
wg_packet_decrypt_worker+0x35d/0x530 drivers/net/wireguard/receive.c:499
process_one_work+0x958/0x1ad0 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rt6_get_pcpu_route net/ipv6/route.c:1407 [inline]
RIP: 0010:ip6_pol_route+0x3bc/0x1150 net/ipv6/route.c:2262
Code: f8 48 85 ed 0f 84 52 03 00 00 e8 7f f2 03 f8 48 8d bd 98 00 00 00 49 89 ec 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a3 08 00 00 8b 85 98 00 00 00
RSP: 0018:ffffc900005f02f0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff88805d07b980 RCX: ffffffff898a92e3
RDX: 0000000000000017 RSI: ffffffff898a92f1 RDI: 00000000000000bf
RBP: 0000000000000027 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000027 R11: 0000000000000003 R12: 0000000000000027
R13: 1ffff920000be062 R14: 0000000000000080 R15: ffffc900005f0370
FS: 0000000000000000(0000) GS:ffff88802c300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000005721bf4c CR3: 000000000d97a000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: f8 clc
1: 48 85 ed test %rbp,%rbp
4: 0f 84 52 03 00 00 je 0x35c
a: e8 7f f2 03 f8 call 0xf803f28e
f: 48 8d bd 98 00 00 00 lea 0x98(%rbp),%rdi
16: 49 89 ec mov %rbp,%r12
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 74 08 je 0x3a
32: 3c 03 cmp $0x3,%al
34: 0f 8e a3 08 00 00 jle 0x8dd
3a: 8b 85 98 00 00 00 mov 0x98(%rbp),%eax