./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3205355340

<...>
Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts.
execve("./syz-executor3205355340", ["./syz-executor3205355340"], 0x7ffcf3862a20 /* 10 vars */) = 0
brk(NULL)                               = 0x555555e32000
brk(0x555555e32c40)                     = 0x555555e32c40
arch_prctl(ARCH_SET_FS, 0x555555e32300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor3205355340", 4096) = 28
brk(0x555555e53c40)                     = 0x555555e53c40
brk(0x555555e54000)                     = 0x555555e54000
mprotect(0x7f4752a32000, 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
bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SK_REUSEPORT, insn_cnt=3, insns=0x20000040, license="syzkaller", log_level=1, log_size=195, log_buf="", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72) = 3
socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
setsockopt(4, SOL_SOCKET, SO_REUSEPORT, "\xbb\x57\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 60) = 0
setsockopt(4, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, [3], 4) = 0
exit_group(0)                           = ?
syzkaller login: [   49.264655][ T3607] 
[   49.267103][ T3607] =============================
[   49.271967][ T3607] WARNING: suspicious RCU usage
[   49.276802][ T3607] 5.19.0-syzkaller-11980-ge34cfee65ec8 #0 Not tainted
[   49.283590][ T3607] -----------------------------
[   49.288419][ T3607] include/net/sock.h:592 suspicious rcu_dereference_check() usage!
[   49.296334][ T3607] 
[   49.296334][ T3607] other info that might help us debug this:
[   49.296334][ T3607] 
[   49.306606][ T3607] 
[   49.306606][ T3607] rcu_scheduler_active = 2, debug_locks = 1
[   49.314712][ T3607] 3 locks held by syz-executor320/3607:
[   49.320302][ T3607]  #0: ffff88807f0cac10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280
[   49.330886][ T3607]  #1: ffffffff8d7bb7b8 (reuseport_lock){+...}-{2:2}, at: reuseport_detach_sock+0x22/0x4a0
[   49.340947][ T3607]  #2: ffff888026ca8af8 (clock-AF_INET){++..}-{2:2}, at: bpf_sk_reuseport_detach+0x26/0x190
[   49.351080][ T3607] 
[   49.351080][ T3607] stack backtrace:
[   49.356968][ T3607] CPU: 0 PID: 3607 Comm: syz-executor320 Not tainted 5.19.0-syzkaller-11980-ge34cfee65ec8 #0
[   49.367127][ T3607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[   49.377169][ T3607] Call Trace:
[   49.380435][ T3607]  <TASK>
[   49.383371][ T3607]  dump_stack_lvl+0xcd/0x134
[   49.387955][ T3607]  bpf_sk_reuseport_detach+0x156/0x190
[   49.393407][ T3607]  reuseport_detach_sock+0x8c/0x4a0
[   49.398597][ T3607]  ? netlink_has_listeners+0x21c/0x3d0
[   49.404131][ T3607]  __sk_free+0x130/0x460
[   49.408379][ T3607]  sk_common_release+0x292/0x390
[   49.413329][ T3607]  inet_release+0x12e/0x270
[   49.417830][ T3607]  __sock_release+0xcd/0x280
[   49.422412][ T3607]  sock_close+0x18/0x20
[   49.426559][ T3607]  __fput+0x277/0x9d0
[   49.430533][ T3607]  ? __sock_release+0x280/0x280
[   49.435396][ T3607]  task_work_run+0xdd/0x1a0
[   49.439908][ T3607]  do_exit+0xad5/0x29b0
[   49.444061][ T3607]  ? mm_update_next_owner+0x7a0/0x7a0
[   49.449420][ T3607]  ? _raw_spin_unlock_irq+0x1f/0x40
[   49.454608][ T3607]  ? _raw_spin_unlock_irq+0x1f/0x40
[   49.459805][ T3607]  do_group_exit+0xd2/0x2f0
[   49.464303][ T3607]  __x64_sys_exit_group+0x3a/0x50
[   49.469330][ T3607]  do_syscall_64+0x35/0xb0
[   49.473738][ T3607]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   49.479634][ T3607] RIP: 0033:0x7f47529c4849
[   49.484052][ T3607] Code: Unable to access opcode bytes at RIP 0x7f47529c481f.
[   49.491404][ T3607] RSP: 002b:00007ffc23fe9f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   49.499806][ T3607] RAX: ffffffffffffffda RBX: 00007f4752a38270 RCX: 00007f47529c4849
[   49.507768][ T3607] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
+++ exited with 0 +++
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