------------[ cut here ]------------
WARNING: CPU: 1 PID: 7022 at net/ipv4/af_inet.c:156 inet_sock_destruct+0x684/0x830 net/ipv4/af_inet.c:156
Modules linked in:
CPU: 1 UID: 0 PID: 7022 Comm: syz.2.316 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:inet_sock_destruct+0x684/0x830 net/ipv4/af_inet.c:156
Code: 0f 0b 90 e9 12 fe ff ff e8 c9 2a a8 f7 90 0f 0b 90 e9 5e fe ff ff e8 bb 2a a8 f7 90 0f 0b 90 e9 94 fe ff ff e8 ad 2a a8 f7 90 <0f> 0b 90 e9 d3 fe ff ff e8 6f 8a 0e f8 e9 d7 fc ff ff 4c 89 ff e8
RSP: 0018:ffffc900006a0d90 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88802b94a880 RCX: ffffffff8a1362f7
RDX: ffff888058b9c880 RSI: ffffffff8a136423 RDI: 0000000000000005
RBP: 0000000000000ffd R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000ffd R11: 0000000000000000 R12: ffff88802b94a880
R13: ffff88802b94a910 R14: ffffc900006a0e90 R15: 0000000000000002
FS: 00007fbaf0a7d6c0(0000) GS:ffff8880d67b5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff673d7dac CR3: 000000003bf7d000 CR4: 0000000000352ef0
Call Trace:
__sk_destruct+0x84/0x9a0 net/core/sock.c:2339
rcu_do_batch kernel/rcu/tree.c:2605 [inline]
rcu_core+0x799/0x1530 kernel/rcu/tree.c:2861
handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0x109/0x170 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data+0x11/0x90 kernel/kcov.c:246
Code: cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 49 89 d2 49 89 f8 49 89 f1 65 48 8b 15 b7 27 1b 12 <65> 8b 05 c8 27 1b 12 a9 00 01 ff 00 74 1d f6 c4 01 74 67 a9 00 00
RSP: 0018:ffffc90005f97718 EFLAGS: 00000202
RAX: 0000000000000002 RBX: 0000000000000002 RCX: ffffffff8a48f6ef
RDX: ffff888058b9c880 RSI: 0000000000000087 RDI: 0000000000000003
RBP: ffffffff8cf69f00 R08: 0000000000000003 R09: 0000000000000087
R10: 000000000000003a R11: 0000000000000000 R12: 000000000000003a
R13: 0000000000000003 R14: 0000000000000002 R15: ffff888059a687c0
__sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:351
rawv6_init_sk+0x4f/0x190 net/ipv6/raw.c:1178
inet6_create net/ipv6/af_inet6.c:259 [inline]
inet6_create+0xb2d/0x12b0 net/ipv6/af_inet6.c:120
__sock_create+0x335/0x8d0 net/socket.c:1589
inet_ctl_sock_create+0x94/0x230 net/ipv4/af_inet.c:1634
ndisc_net_init+0x89/0x250 net/ipv6/ndisc.c:1970
ops_init+0x1df/0x5f0 net/core/net_namespace.c:136
setup_net+0x10f/0x380 net/core/net_namespace.c:438
copy_net_ns+0x2a6/0x5f0 net/core/net_namespace.c:570
create_new_namespaces+0x3ea/0xa90 kernel/nsproxy.c:110
copy_namespaces+0x468/0x560 kernel/nsproxy.c:175
copy_process+0x2822/0x7690 kernel/fork.c:2178
kernel_clone+0xfc/0x930 kernel/fork.c:2605
__do_sys_clone+0xce/0x120 kernel/fork.c:2748
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbaefb8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbaf0a7cfe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fbaefdd5fa0 RCX: 00007fbaefb8eba9
RDX: 0000200000000740 RSI: 0000200000000180 RDI: 0000000041800000
RBP: 00007fbaefc11e19 R08: 00002000000007c0 R09: 00002000000007c0
R10: 0000200000000780 R11: 0000000000000206 R12: 0000000000000000
R13: 00007fbaefdd6038 R14: 00007fbaefdd5fa0 R15: 00007ffe73977068
----------------
Code disassembly (best guess):
0: cc int3
1: cc int3
2: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 90 nop
19: 49 89 d2 mov %rdx,%r10
1c: 49 89 f8 mov %rdi,%r8
1f: 49 89 f1 mov %rsi,%r9
22: 65 48 8b 15 b7 27 1b mov %gs:0x121b27b7(%rip),%rdx # 0x121b27e1
29: 12
* 2a: 65 8b 05 c8 27 1b 12 mov %gs:0x121b27c8(%rip),%eax # 0x121b27f9 <-- trapping instruction
31: a9 00 01 ff 00 test $0xff0100,%eax
36: 74 1d je 0x55
38: f6 c4 01 test $0x1,%ah
3b: 74 67 je 0xa4
3d: a9 .byte 0xa9