Warning: Permanently added '10.128.15.218' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 263.776786][ T9640] Set syz2 is full, maxelem 65536 reached [ 368.779073][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 368.785928][ C0] rcu: 0-....: (10499 ticks this GP) idle=6c6/1/0x4000000000000002 softirq=17542/17542 fqs=5209 [ 368.796712][ C0] (t=10500 jiffies g=9581 q=1573) [ 368.801862][ C0] NMI backtrace for cpu 0 [ 368.806175][ C0] CPU: 0 PID: 9641 Comm: syz-executor229 Not tainted 5.5.0-rc7-syzkaller #0 [ 368.814965][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 368.825096][ C0] Call Trace: [ 368.828383][ C0] [ 368.831314][ C0] dump_stack+0x197/0x210 [ 368.835651][ C0] nmi_cpu_backtrace.cold+0x70/0xb2 [ 368.840898][ C0] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 368.846524][ C0] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 368.852503][ C0] arch_trigger_cpumask_backtrace+0x14/0x20 [ 368.858462][ C0] rcu_dump_cpu_stacks+0x183/0x1cf [ 368.863608][ C0] ? find_next_bit+0x107/0x130 [ 368.868367][ C0] rcu_sched_clock_irq.cold+0x509/0xc0d [ 368.873954][ C0] ? raise_softirq+0x138/0x340 [ 368.878758][ C0] update_process_times+0x2d/0x70 [ 368.883835][ C0] tick_sched_handle+0xa2/0x190 [ 368.888684][ C0] tick_sched_timer+0x53/0x140 [ 368.893446][ C0] __hrtimer_run_queues+0x364/0xe40 [ 368.898630][ C0] ? tick_sched_do_timer+0x1b0/0x1b0 [ 368.903911][ C0] ? hrtimer_init+0x330/0x330 [ 368.908687][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 368.914405][ C0] ? ktime_get_update_offsets_now+0x2ce/0x430 [ 368.920595][ C0] hrtimer_interrupt+0x314/0x770 [ 368.925566][ C0] smp_apic_timer_interrupt+0x160/0x610 [ 368.931107][ C0] apic_timer_interrupt+0xf/0x20 [ 368.936031][ C0] [ 368.938956][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 [ 368.945009][ C0] Code: cc cc cc cc cc cc cc cc cc 65 48 8b 04 25 c0 1e 02 00 48 8b 80 98 13 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 55 <48> 89 e5 65 48 8b 04 25 c0 1e 02 00 65 8b 15 14 27 8d 7e 81 e2 00 [ 368.964607][ C0] RSP: 0018:ffffc900020a6e18 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 368.973051][ C0] RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff86765e6f [ 368.981018][ C0] RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000004 [ 368.989031][ C0] RBP: ffffc900020a6ed8 R08: ffff8880a287e340 R09: ffffed1012509d43 [ 368.996995][ C0] R10: ffffed1012509d42 R11: ffff88809284ea17 R12: ffff88809284ea40 [ 369.004956][ C0] R13: ffff8880a2cb8700 R14: 0000000000000002 R15: dffffc0000000000 [ 369.012979][ C0] ? hash_ip4_expire.isra.0+0x2af/0x8d0 [ 369.018524][ C0] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 369.024242][ C0] ? hash_ip4_expire.isra.0+0x3df/0x8d0 [ 369.029773][ C0] hash_ip4_add+0x178/0x1b6c [ 369.034355][ C0] hash_ip4_uadt+0x546/0x7a0 [ 369.038942][ C0] ? hash_ip6_add+0x1d70/0x1d70 [ 369.043788][ C0] ? hash_ip6_uadt+0x670/0x670 [ 369.048594][ C0] ? __kasan_check_write+0x14/0x20 [ 369.053769][ C0] call_ad+0x1a0/0x5a0 [ 369.057841][ C0] ? start_msg+0x220/0x220 [ 369.062299][ C0] ? nla_memcpy+0xb0/0xb0 [ 369.066626][ C0] ? __nla_parse+0x43/0x60 [ 369.071041][ C0] ip_set_ad.isra.0+0x572/0xb20 [ 369.075877][ C0] ? ip_set_nfnl_get_byindex+0x460/0x460 [ 369.081516][ C0] ? nla_memcpy+0xb0/0xb0 [ 369.085925][ C0] ? lock_downgrade+0x920/0x920 [ 369.090815][ C0] ip_set_uadd+0x37/0x50 [ 369.095083][ C0] ? ip_set_udel+0x50/0x50 [ 369.099559][ C0] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 369.104502][ C0] ? nfnetlink_bind+0x2c0/0x2c0 [ 369.109358][ C0] ? __kasan_check_read+0x11/0x20 [ 369.114366][ C0] ? __lock_acquire+0x8a0/0x4a00 [ 369.119310][ C0] ? save_stack+0x5c/0x90 [ 369.123629][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.129904][ C0] ? apparmor_capable+0x497/0x900 [ 369.134930][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.141199][ C0] ? __kasan_check_read+0x11/0x20 [ 369.146246][ C0] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 369.151699][ C0] netlink_rcv_skb+0x177/0x450 [ 369.156511][ C0] ? nfnetlink_bind+0x2c0/0x2c0 [ 369.161355][ C0] ? netlink_ack+0xb50/0xb50 [ 369.165934][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.172162][ C0] ? ns_capable_common+0x93/0x100 [ 369.177217][ C0] ? ns_capable+0x20/0x30 [ 369.181540][ C0] ? __netlink_ns_capable+0x104/0x140 [ 369.186907][ C0] nfnetlink_rcv+0x1ba/0x460 [ 369.191621][ C0] ? nfnetlink_rcv_batch+0x17b0/0x17b0 [ 369.197066][ C0] ? netlink_deliver_tap+0x24a/0xbe0 [ 369.202340][ C0] ? __kasan_check_write+0x14/0x20 [ 369.207449][ C0] netlink_unicast+0x58c/0x7d0 [ 369.212207][ C0] ? netlink_attachskb+0x870/0x870 [ 369.217304][ C0] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 369.223149][ C0] ? __check_object_size+0x3d/0x437 [ 369.228348][ C0] netlink_sendmsg+0x91c/0xea0 [ 369.233115][ C0] ? netlink_unicast+0x7d0/0x7d0 [ 369.238138][ C0] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 369.243682][ C0] ? apparmor_socket_sendmsg+0x2a/0x30 [ 369.249171][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.255461][ C0] ? security_socket_sendmsg+0x8d/0xc0 [ 369.260910][ C0] ? netlink_unicast+0x7d0/0x7d0 [ 369.265906][ C0] sock_sendmsg+0xd7/0x130 [ 369.270322][ C0] ____sys_sendmsg+0x753/0x880 [ 369.275089][ C0] ? kernel_sendmsg+0x50/0x50 [ 369.279748][ C0] ? lockdep_init_map+0x1be/0x6d0 [ 369.284767][ C0] ___sys_sendmsg+0x100/0x170 [ 369.289437][ C0] ? sendmsg_copy_msghdr+0x70/0x70 [ 369.294539][ C0] ? __kasan_check_read+0x11/0x20 [ 369.299590][ C0] ? __lock_acquire+0x8a0/0x4a00 [ 369.304508][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.310779][ C0] ? __this_cpu_preempt_check+0x35/0x190 [ 369.316470][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.322705][ C0] ? percpu_counter_add_batch+0x13c/0x190 [ 369.328439][ C0] ? __fd_install+0x1bc/0x640 [ 369.333111][ C0] ? find_held_lock+0x35/0x130 [ 369.337870][ C0] ? __fd_install+0x1bc/0x640 [ 369.342559][ C0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 369.348793][ C0] ? __fget_light+0x1a9/0x230 [ 369.353515][ C0] ? __fdget+0x1b/0x20 [ 369.357617][ C0] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 369.363923][ C0] __sys_sendmsg+0x105/0x1d0 [ 369.368522][ C0] ? __sys_sendmsg_sock+0xc0/0xc0 [ 369.373562][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 369.379015][ C0] ? do_syscall_64+0x26/0x790 [ 369.383671][ C0] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 369.389728][ C0] ? do_syscall_64+0x26/0x790 [ 369.394395][ C0] __x64_sys_sendmsg+0x78/0xb0 [ 369.399144][ C0] do_syscall_64+0xfa/0x790 [ 369.403633][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 369.409506][ C0] RIP: 0033:0x441579 [ 369.413405][ C0] Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 369.433106][ C0] RSP: 002b:00007fff87115418 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 369.441512][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441579 [ 369.449476][ C0] RDX: 0000000000000000 RSI: 0000000020000d00 RDI: 0000000000000004 [ 369.457443][ C0] RBP: 0000000000040333 R08: 00000000004002c8 R09: 00000000004002c8 [ 369.465408][ C0] R10: 00000000004002c8 R11: 0000000000000246 R12: 00000000004023a0 [ 369.473366][ C0] R13: 0000000000402430 R14: 0000000000000000 R15: 0000000000000000