PANIC: double fault in mark_lock

Status: auto-closed as invalid on 2020/09/28 17:22
Subsystems: bpf net
[Documentation on labels]
Reported-by: syzbot+4fceeb0d2fc702d5d41e@syzkaller.appspotmail.com
First crash: 2264d, last: 2264d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
PANIC: double fault in mark_lock 0 (1) 2020/06/04 19:26

Sample crash report:
traps: PANIC: double fault, error_code: 0x0
double fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 29146 Comm: syz-executor.1 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
RIP: 0010:hlock_class kernel/locking/lockdep.c:179 [inline]
RIP: 0010:mark_lock+0x116/0xf10 kernel/locking/lockdep.c:3912
Code: 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 74 08 3c 03 0f 8e e3 0b 00 00 0f b7 55 20 66 81 e2 ff 1f 0f b7 d2 be 08 00 00 00 48 89 d0 <48> 89 14 24 48 c1 f8 06 48 8d 3c c5 a0 a9 30 8c e8 85 42 58 00 48
RSP: 0018:ffffc8fffffffff8 EFLAGS: 00010002
RAX: 000000000000002c RBX: 1ffff92000000005 RCX: ffffffff815935f7
RDX: 000000000000002c RSI: 0000000000000008 RDI: ffff88808fed2080
RBP: ffff88808fed2a10 R08: 0000000000000000 R09: fffffbfff1861559
R10: ffffffff8c30aac7 R11: fffffbfff1861558 R12: 0000000000000008
R13: ffff88808fed2080 R14: 0000000000000005 R15: ffff88808fed2a30
FS:  00000000015ee940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc8ffffffffe8 CR3: 000000009402e000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 mark_usage kernel/locking/lockdep.c:3860 [inline]
 __lock_acquire+0x9a4/0x4c50 kernel/locking/lockdep.c:4309
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4934
 rcu_lock_acquire include/linux/rcupdate.h:208 [inline]
 rcu_read_lock include/linux/rcupdate.h:601 [inline]
 sock_map_unhash+0x38/0x380 net/core/sock_map.c:1233
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
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 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 sock_map_unhash+0x303/0x380 net/core/sock_map.c:1238
 tcp_set_state+0x579/0x780 net/ipv4/tcp.c:2261
 tcp_done+0xdc/0x380 net/ipv4/tcp.c:4003
 tcp_reset+0x128/0x4e0 net/ipv4/tcp_input.c:4113
 tcp_validate_incoming+0xa51/0x16b0 net/ipv4/tcp_input.c:5514
 tcp_rcv_established+0x69a/0x1d90 net/ipv4/tcp_input.c:5722
 tcp_v6_do_rcv+0x418/0x1290 net/ipv6/tcp_ipv6.c:1449
 tcp_v6_rcv+0x2d07/0x3640 net/ipv6/tcp_ipv6.c:1682
 ip6_protocol_deliver_rcu+0x2e6/0x1660 net/ipv6/ip6_input.c:433
 ip6_input_finish+0x7f/0x160 net/ipv6/ip6_input.c:474
 NF_HOOK include/linux/netfilter.h:307 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ip6_input+0xcf/0x3d0 net/ipv6/ip6_input.c:483
 dst_input include/net/dst.h:441 [inline]
 ip6_rcv_finish+0x1d9/0x310 net/ipv6/ip6_input.c:76
 NF_HOOK include/linux/netfilter.h:307 [inline]
 NF_HOOK include/linux/netfilter.h:301 [inline]
 ipv6_rcv+0xf8/0x3f0 net/ipv6/ip6_input.c:307
 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5268
 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5382
 process_backlog+0x21e/0x7a0 net/core/dev.c:6214
 napi_poll net/core/dev.c:6659 [inline]
 net_rx_action+0x4c2/0x1070 net/core/dev.c:6727
 __do_softirq+0x26c/0x9f7 kernel/softirq.c:292
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1082
 </IRQ>
 do_softirq.part.0+0x10f/0x160 kernel/softirq.c:337
 do_softirq kernel/softirq.c:329 [inline]
 __local_bh_enable_ip+0x20e/0x270 kernel/softirq.c:189
 local_bh_enable include/linux/bottom_half.h:32 [inline]
 inet_csk_listen_stop+0x2b8/0xb20 net/ipv4/inet_connection_sock.c:1034
 tcp_close+0xe3d/0x1250 net/ipv4/tcp.c:2364
 inet_release+0xe4/0x1f0 net/ipv4/af_inet.c:428
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:475
 __sock_release+0xcd/0x280 net/socket.c:605
 sock_close+0x18/0x20 net/socket.c:1278
 __fput+0x33e/0x880 fs/file_table.c:280
 task_work_run+0xf4/0x1b0 kernel/task_work.c:123
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x2fa/0x360 arch/x86/entry/common.c:165
 prepare_exit_to_usermode arch/x86/entry/common.c:196 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
 do_syscall_64+0x6b1/0x7d0 arch/x86/entry/common.c:305
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x416661
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffefd7b28b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000416661
RDX: 0000000000000000 RSI: 0000000000000d9f RDI: 0000000000000004
RBP: 0000000000000001 R08: 000000007b7b0d9f R09: 000000007b7b0da3
R10: 00007ffefd7b29a0 R11: 0000000000000293 R12: 000000000078c900
R13: 000000000078c900 R14: ffffffffffffffff R15: 000000000078bf0c
Modules linked in:
---[ end trace 500deeb1423f1fcc ]---
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
RIP: 0010:hlock_class kernel/locking/lockdep.c:179 [inline]
RIP: 0010:mark_lock+0x116/0xf10 kernel/locking/lockdep.c:3912
Code: 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 74 08 3c 03 0f 8e e3 0b 00 00 0f b7 55 20 66 81 e2 ff 1f 0f b7 d2 be 08 00 00 00 48 89 d0 <48> 89 14 24 48 c1 f8 06 48 8d 3c c5 a0 a9 30 8c e8 85 42 58 00 48
RSP: 0018:ffffc8fffffffff8 EFLAGS: 00010002
RAX: 000000000000002c RBX: 1ffff92000000005 RCX: ffffffff815935f7
RDX: 000000000000002c RSI: 0000000000000008 RDI: ffff88808fed2080
RBP: ffff88808fed2a10 R08: 0000000000000000 R09: fffffbfff1861559
R10: ffffffff8c30aac7 R11: fffffbfff1861558 R12: 0000000000000008
R13: ffff88808fed2080 R14: 0000000000000005 R15: ffff88808fed2a30
FS:  00000000015ee940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc8ffffffffe8 CR3: 000000009402e000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/05/31 17:21 net-next-old 39884604b116 a0331e89 .config console log report ci-upstream-net-kasan-gce
* Struck through repros no longer work on HEAD.