./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2121000866

<...>
forked to background, child pid 3185
no interfaces have a carrier
[   26.264448][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0
[   26.278770][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.98' (ECDSA) to the list of known hosts.
execve("./syz-executor2121000866", ["./syz-executor2121000866"], 0x7ffe52e15e20 /* 10 vars */) = 0
brk(NULL)                               = 0x555555706000
brk(0x555555706c40)                     = 0x555555706c40
arch_prctl(ARCH_SET_FS, 0x555555706300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2121000866", 4096) = 28
brk(0x555555727c40)                     = 0x555555727c40
brk(0x555555728000)                     = 0x555555728000
mprotect(0x7f102a1e6000, 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_STREAM, IPPROTO_IP) = 3
setsockopt(3, SOL_SOCKET, SO_REUSEPORT, [1], 4) = 0
listen(3, 0)                            = 0
exit_group(0)                           = ?
syzkaller login: [   49.415115][ T3606] 
[   49.417563][ T3606] =============================
[   49.422398][ T3606] WARNING: suspicious RCU usage
[   49.427286][ T3606] 5.19.0-syzkaller-11980-ge34cfee65ec8 #0 Not tainted
[   49.434081][ T3606] -----------------------------
[   49.438960][ T3606] include/net/sock.h:592 suspicious rcu_dereference_check() usage!
[   49.446912][ T3606] 
[   49.446912][ T3606] other info that might help us debug this:
[   49.446912][ T3606] 
[   49.457174][ T3606] 
[   49.457174][ T3606] rcu_scheduler_active = 2, debug_locks = 1
[   49.465274][ T3606] 5 locks held by syz-executor212/3606:
[   49.470808][ T3606]  #0: ffff8880758f9a10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280
[   49.481395][ T3606]  #1: ffff88807deb8130 (sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_close+0x1e/0xc0
[   49.490529][ T3606]  #2: ffffc90001336bd0 (&h->lhash2[i].lock){+.+.}-{2:2}, at: inet_unhash+0x345/0x680
[   49.500152][ T3606]  #3: ffffffff8d7bb7b8 (reuseport_lock){+...}-{2:2}, at: reuseport_detach_sock+0x22/0x4a0
[   49.510242][ T3606]  #4: ffff88807deb83b8 (clock-AF_INET6){++..}-{2:2}, at: bpf_sk_reuseport_detach+0x26/0x190
[   49.520485][ T3606] 
[   49.520485][ T3606] stack backtrace:
[   49.526402][ T3606] CPU: 0 PID: 3606 Comm: syz-executor212 Not tainted 5.19.0-syzkaller-11980-ge34cfee65ec8 #0
[   49.536542][ T3606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[   49.546696][ T3606] Call Trace:
[   49.549966][ T3606]  <TASK>
[   49.552890][ T3606]  dump_stack_lvl+0xcd/0x134
[   49.557495][ T3606]  bpf_sk_reuseport_detach+0x156/0x190
[   49.562952][ T3606]  reuseport_detach_sock+0x8c/0x4a0
[   49.568150][ T3606]  reuseport_stop_listen_sock+0x6d/0x500
[   49.573779][ T3606]  inet_unhash+0x3b1/0x680
[   49.578187][ T3606]  tcp_set_state+0x198/0x7e0
[   49.582790][ T3606]  ? tcp_wmem_schedule+0x210/0x210
[   49.587894][ T3606]  ? find_held_lock+0x2d/0x110
[   49.592651][ T3606]  ? tcp_close+0x1e/0xc0
[   49.596926][ T3606]  __tcp_close+0xbfd/0xf50
[   49.601427][ T3606]  tcp_close+0x29/0xc0
[   49.605490][ T3606]  inet_release+0x12e/0x270
[   49.610009][ T3606]  inet6_release+0x4c/0x70
[   49.614458][ T3606]  __sock_release+0xcd/0x280
[   49.619055][ T3606]  sock_close+0x18/0x20
[   49.623221][ T3606]  __fput+0x277/0x9d0
[   49.627203][ T3606]  ? __sock_release+0x280/0x280
[   49.632072][ T3606]  task_work_run+0xdd/0x1a0
[   49.636569][ T3606]  do_exit+0xad5/0x29b0
[   49.640727][ T3606]  ? mm_update_next_owner+0x7a0/0x7a0
[   49.646090][ T3606]  ? _raw_spin_unlock_irq+0x1f/0x40
[   49.651282][ T3606]  ? _raw_spin_unlock_irq+0x1f/0x40
[   49.656475][ T3606]  do_group_exit+0xd2/0x2f0
[   49.660969][ T3606]  __x64_sys_exit_group+0x3a/0x50
[   49.665998][ T3606]  do_syscall_64+0x35/0xb0
[   49.670425][ T3606]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   49.676312][ T3606] RIP: 0033:0x7f102a178639
[   49.680719][ T3606] Code: Unable to access opcode bytes at RIP 0x7f102a17860f.
[   49.688069][ T3606] RSP: 002b:00007ffe50991188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   49.696471][ T3606] RAX: ffffffffffffffda RBX: 00007f102a1ec270 RCX: 00007f102a178639
[   49.704430][ T3606] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
+++ exited with 0 +++
[   49.712390][ T3606] RBP: 0000000000000000 R08