./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1937573819

<...>
DUID 00:04:f2:2d:62:da:c3:85:a0:c9:3a:ab:4f:1c:2c:dc:65:98
forked to background, child pid 3185
[   26.707775][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.717607][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.126' (ECDSA) to the list of known hosts.
execve("./syz-executor1937573819", ["./syz-executor1937573819"], 0x7ffcc6cfaf80 /* 10 vars */) = 0
brk(NULL)                               = 0x5555558c3000
brk(0x5555558c3c40)                     = 0x5555558c3c40
arch_prctl(ARCH_SET_FS, 0x5555558c3300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor1937573819", 4096) = 28
brk(0x5555558e4c40)                     = 0x5555558e4c40
brk(0x5555558e5000)                     = 0x5555558e5000
mprotect(0x7f9c90dbc000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3
setsockopt(3, SOL_SOCKET, SO_REUSEPORT, [65540], 4) = 0
bind(3, {sa_family=AF_INET6, sin6_port=htons(3618), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::", &sin6_addr), sin6_scope_id=0}, 28) = 0
exit_group(0)                           = ?
syzkaller login: [   48.798513][ T3614] 
[   48.800971][ T3614] =============================
[   48.806085][ T3614] WARNING: suspicious RCU usage
[   48.810926][ T3614] 5.19.0-syzkaller-11980-ge34cfee65ec8 #0 Not tainted
[   48.817700][ T3614] -----------------------------
[   48.822572][ T3614] include/net/sock.h:592 suspicious rcu_dereference_check() usage!
[   48.830469][ T3614] 
[   48.830469][ T3614] other info that might help us debug this:
[   48.830469][ T3614] 
[   48.840747][ T3614] 
[   48.840747][ T3614] rcu_scheduler_active = 2, debug_locks = 1
[   48.848833][ T3614] 4 locks held by syz-executor193/3614:
[   48.854400][ T3614]  #0: ffff888075e48e10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280
[   48.865008][ T3614]  #1: ffffc900014f5b28 (&table->hash[i].lock){+...}-{2:2}, at: udp_lib_unhash+0x1d5/0x730
[   48.875052][ T3614]  #2: ffffffff8d7bb7b8 (reuseport_lock){+...}-{2:2}, at: reuseport_detach_sock+0x22/0x4a0
[   48.885135][ T3614]  #3: ffff88801caba3b8 (clock-AF_INET6){++..}-{2:2}, at: bpf_sk_reuseport_detach+0x26/0x190
[   48.895358][ T3614] 
[   48.895358][ T3614] stack backtrace:
[   48.901258][ T3614] CPU: 1 PID: 3614 Comm: syz-executor193 Not tainted 5.19.0-syzkaller-11980-ge34cfee65ec8 #0
[   48.911404][ T3614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[   48.921451][ T3614] Call Trace:
[   48.924743][ T3614]  <TASK>
[   48.927671][ T3614]  dump_stack_lvl+0xcd/0x134
[   48.932258][ T3614]  bpf_sk_reuseport_detach+0x156/0x190
[   48.937713][ T3614]  reuseport_detach_sock+0x8c/0x4a0
[   48.942920][ T3614]  udp_lib_unhash+0x210/0x730
[   48.947632][ T3614]  ? udpv6_pre_connect+0x180/0x180
[   48.952742][ T3614]  sk_common_release+0xba/0x390
[   48.957593][ T3614]  inet_release+0x12e/0x270
[   48.962090][ T3614]  inet6_release+0x4c/0x70
[   48.966497][ T3614]  __sock_release+0xcd/0x280
[   48.971079][ T3614]  sock_close+0x18/0x20
[   48.975223][ T3614]  __fput+0x277/0x9d0
[   48.979202][ T3614]  ? __sock_release+0x280/0x280
[   48.984042][ T3614]  task_work_run+0xdd/0x1a0
[   48.988536][ T3614]  do_exit+0xad5/0x29b0
[   48.992772][ T3614]  ? mm_update_next_owner+0x7a0/0x7a0
[   48.998131][ T3614]  ? _raw_spin_unlock_irq+0x1f/0x40
[   49.003322][ T3614]  ? _raw_spin_unlock_irq+0x1f/0x40
[   49.008514][ T3614]  do_group_exit+0xd2/0x2f0
[   49.013012][ T3614]  __x64_sys_exit_group+0x3a/0x50
[   49.018029][ T3614]  do_syscall_64+0x35/0xb0
[   49.022437][ T3614]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   49.028323][ T3614] RIP: 0033:0x7f9c90d4e679
[   49.032815][ T3614] Code: Unable to access opcode bytes at RIP 0x7f9c90d4e64f.
[   49.040161][ T3614] RSP: 002b:00007fff17097528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
+++ exited with 0 +++
[   49.048563]