------------[ cut here ]------------
atomic_read(&sk->sk_rmem_alloc)
WARNING: net/ipv4/af_inet.c:159 at inet_sock_destruct+0x616/0x750 net/ipv4/af_inet.c:159, CPU#0: rcuc/0/20
Modules linked in:
CPU: 0 UID: 0 PID: 20 Comm: rcuc/0 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
RIP: 0010:inet_sock_destruct+0x616/0x750 net/ipv4/af_inet.c:159
Code: 00 41 0f b6 74 24 12 48 c7 c7 c0 e8 9f 8c 4c 89 e2 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 10 43 39 f7 e8 cb c6 d9 f7 90 <0f> 0b 90 e9 43 fe ff ff e8 bd c6 d9 f7 90 0f 0b 90 e9 76 fe ff ff
RSP: 0018:ffffc90000197b28 EFLAGS: 00010293
RAX: ffffffff89ee24d5 RBX: dffffc0000000000 RCX: ffff88801e298000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000500 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10039f8da9 R12: ffff88801cfc6b80
R13: ffff88801cfc7260 R14: ffff88801cfc6d40 R15: ffffffff908e6ee0
FS:  0000000000000000(0000) GS:ffff888124711000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9608efda08 CR3: 0000000041fea000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __sk_destruct+0x89/0xa30 net/core/sock.c:2386
 rcu_do_batch kernel/rcu/tree.c:2650 [inline]
 rcu_core kernel/rcu/tree.c:2919 [inline]
 rcu_cpu_kthread+0xb2f/0x1700 kernel/rcu/tree.c:3007
 smpboot_thread_fn+0x5f8/0xb30 kernel/smpboot.c:162
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>