./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3774581547

<...>
forked to background, child pid 3186[   27.199172][ T3187] 8021q: adding VLAN 0 to HW filter on device bond0

no interfaces have a carrier
[   27.221993][ T3187] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.1.55' (ECDSA) to the list of known hosts.
execve("./syz-executor3774581547", ["./syz-executor3774581547"], 0x7ffe086e0ce0 /* 10 vars */) = 0
brk(NULL)                               = 0x555555e29000
brk(0x555555e29c40)                     = 0x555555e29c40
arch_prctl(ARCH_SET_FS, 0x555555e29300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor3774581547", 4096) = 28
brk(0x555555e4ac40)                     = 0x555555e4ac40
brk(0x555555e4b000)                     = 0x555555e4b000
mprotect(0x7f8b41d92000, 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_INET, SOCK_STREAM, IPPROTO_IP) = 3
setsockopt(3, SOL_SOCKET, SO_REUSEPORT, [4100], 4) = 0
listen(3, 0)                            = 0
exit_group(0)                           = ?
syzkaller login: [   50.301990][ T3607] 
[   50.304430][ T3607] =============================
[   50.309260][ T3607] WARNING: suspicious RCU usage
[   50.314146][ T3607] 6.0.0-rc1-syzkaller-00066-g3b06a2755758 #0 Not tainted
[   50.321233][ T3607] -----------------------------
[   50.326093][ T3607] include/net/sock.h:592 suspicious rcu_dereference_check() usage!
[   50.334011][ T3607] 
[   50.334011][ T3607] other info that might help us debug this:
[   50.334011][ T3607] 
[   50.344298][ T3607] 
[   50.344298][ T3607] rcu_scheduler_active = 2, debug_locks = 1
[   50.352411][ T3607] 5 locks held by syz-executor377/3607:
[   50.357979][ T3607]  #0: ffff88807357dc10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280
[   50.368566][ T3607]  #1: ffff88807e749930 (sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_close+0x1e/0xc0
[   50.377613][ T3607]  #2: ffffc90001315d50 (&h->lhash2[i].lock){+.+.}-{2:2}, at: inet_unhash+0x345/0x680
[   50.387221][ T3607]  #3: ffffffff8d7bc038 (reuseport_lock){+...}-{2:2}, at: reuseport_detach_sock+0x22/0x4a0
[   50.397291][ T3607]  #4: ffff88807e749bb8 (clock-AF_INET){++..}-{2:2}, at: bpf_sk_reuseport_detach+0x26/0x190
[   50.407452][ T3607] 
[   50.407452][ T3607] stack backtrace:
[   50.413386][ T3607] CPU: 1 PID: 3607 Comm: syz-executor377 Not tainted 6.0.0-rc1-syzkaller-00066-g3b06a2755758 #0
[   50.423798][ T3607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[   50.433853][ T3607] Call Trace:
[   50.437131][ T3607]  <TASK>
[   50.440060][ T3607]  dump_stack_lvl+0xcd/0x134
[   50.444667][ T3607]  bpf_sk_reuseport_detach+0x156/0x190
[   50.450119][ T3607]  reuseport_detach_sock+0x8c/0x4a0
[   50.455312][ T3607]  reuseport_stop_listen_sock+0x6d/0x500
[   50.460944][ T3607]  inet_unhash+0x3b1/0x680
[   50.465350][ T3607]  tcp_set_state+0x198/0x7e0
[   50.469948][ T3607]  ? tcp_wmem_schedule+0x210/0x210
[   50.475058][ T3607]  ? find_held_lock+0x2d/0x110
[   50.479835][ T3607]  ? tcp_close+0x1e/0xc0
[   50.484110][ T3607]  __tcp_close+0xbfd/0xf50
[   50.488568][ T3607]  tcp_close+0x29/0xc0
[   50.492645][ T3607]  inet_release+0x12e/0x270
[   50.497164][ T3607]  __sock_release+0xcd/0x280
[   50.501763][ T3607]  sock_close+0x18/0x20
[   50.505927][ T3607]  __fput+0x277/0x9d0
[   50.509917][ T3607]  ? __sock_release+0x280/0x280
[   50.514781][ T3607]  task_work_run+0xdd/0x1a0
[   50.519301][ T3607]  do_exit+0xad5/0x29b0
[   50.523488][ T3607]  ? mm_update_next_owner+0x7a0/0x7a0
[   50.528869][ T3607]  ? _raw_spin_unlock_irq+0x1f/0x40
[   50.534078][ T3607]  ? _raw_spin_unlock_irq+0x1f/0x40
[   50.539293][ T3607]  do_group_exit+0xd2/0x2f0
[   50.543810][ T3607]  __x64_sys_exit_group+0x3a/0x50
[   50.548875][ T3607]  do_syscall_64+0x35/0xb0
[   50.553299][ T3607]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   50.559200][ T3607] RIP: 0033:0x7f8b41d24639
[   50.563619][ T3607] Code: Unable to access opcode bytes at RIP 0x7f8b41d2460f.
[   50.570984][ T3607] RSP: 002b:00007ffc4af87918 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   50.579405][ T3607] RAX: ffffffffffffffda RBX: 00007f8b41d98270 RCX: 00007f8b41d24639
[   50.587381][ T3607] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
[   50.595372][ T3607] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000
+++ exited with 0 +++
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