./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2762003124 <...> Warning: Permanently added '10.128.1.23' (ED25519) to the list of known hosts. execve("./syz-executor2762003124", ["./syz-executor2762003124"], 0x7ffe57110890 /* 10 vars */) = 0 brk(NULL) = 0x555560bd6000 brk(0x555560bd6d00) = 0x555560bd6d00 arch_prctl(ARCH_SET_FS, 0x555560bd6380) = 0 set_tid_address(0x555560bd6650) = 5825 set_robust_list(0x555560bd6660, 24) = 0 rseq(0x555560bd6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2762003124", 4096) = 28 getrandom("\x48\x44\xcb\x55\x9e\x75\x6e\x42", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555560bd6d00 brk(0x555560bf7d00) = 0x555560bf7d00 brk(0x555560bf8000) = 0x555560bf8000 mprotect(0x7fcefa1db000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555560bd6650) = 5826 ./strace-static-x86_64: Process 5826 attached [pid 5826] set_robust_list(0x555560bd6660, 24) = 0 [pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5826] getppid() = 0 [pid 5826] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5826] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5826] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5826] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5826] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5826] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5826] unshare(CLONE_NEWNS) = 0 [pid 5826] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5826] unshare(CLONE_NEWIPC) = 0 [pid 5826] unshare(CLONE_NEWCGROUP) = 0 [pid 5826] unshare(CLONE_NEWUTS) = 0 [pid 5826] unshare(CLONE_SYSVSEM) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "16777216", 8) = 8 [pid 5826] close(3) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "536870912", 9) = 9 [pid 5826] close(3) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1024", 4) = 4 [pid 5826] close(3) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "8192", 4) = 4 [pid 5826] close(3) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1024", 4) = 4 [pid 5826] close(3) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1024", 4) = 4 [pid 5826] close(3) = 0 [pid 5826] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5826] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5826] close(3) = 0 [pid 5826] getpid() = 1 [pid 5826] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 85.826371][ T5826] dump_stack_lvl+0x189/0x250 [ 85.826397][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.826421][ T5826] ? print_lock_name+0xde/0x100 [ 85.826442][ T5826] __might_resched+0x495/0x610 [ 85.826460][ T5826] ? __pfx___might_resched+0x10/0x10 [ 85.826472][ T5826] ? stack_depot_save_flags+0x42b/0x910 [ 85.826503][ T5826] __mutex_lock+0x106/0xe80 [ 85.826523][ T5826] ? ip6_route_add+0xf6/0x2f0 [ 85.826539][ T5826] ? inet6_rtm_newroute+0x284/0x1c50 [ 85.826554][ T5826] ? netlink_rcv_skb+0x219/0x490 [ 85.826570][ T5826] ? netlink_unicast+0x758/0x8d0 [ 85.826584][ T5826] ? netlink_sendmsg+0x805/0xb30 [ 85.826599][ T5826] ? __sock_sendmsg+0x219/0x270 [ 85.826619][ T5826] ? ____sys_sendmsg+0x505/0x830 [ 85.826636][ T5826] ? ___sys_sendmsg+0x21f/0x2a0 [ 85.826653][ T5826] ? __x64_sys_sendmsg+0x19b/0x260 [ 85.826669][ T5826] ? do_syscall_64+0xf6/0x210 [ 85.826688][ T5826] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.826704][ T5826] ? pcpu_alloc_noprof+0x284/0x16b0 [ 85.826727][ T5826] ? __pfx___mutex_lock+0x10/0x10 [ 85.826749][ T5826] ? ip_tun_parse_opts+0x118/0xf20 [ 85.826774][ T5826] ? __pfx_ip_tun_parse_opts+0x10/0x10 [ 85.826794][ T5826] pcpu_alloc_noprof+0x284/0x16b0 [ 85.826816][ T5826] ? ip_tun_build_state+0x12e/0x6b0 [ 85.826834][ T5826] ? rcu_is_watching+0x15/0xb0 [ 85.826856][ T5826] ? trace_kmalloc+0x1f/0xd0 [ 85.826876][ T5826] dst_cache_init+0x37/0xc0 [ 85.826893][ T5826] ip_tun_build_state+0x193/0x6b0 [ 85.826912][ T5826] ? __pfx_ip_tun_build_state+0x10/0x10 [ 85.826927][ T5826] ? __lock_acquire+0xaac/0xd20 [ 85.826967][ T5826] ? lwtunnel_build_state+0xe2/0x4c0 [ 85.826991][ T5826] lwtunnel_build_state+0x381/0x4c0 [ 85.827013][ T5826] ? lwtunnel_build_state+0xe2/0x4c0 [ 85.827035][ T5826] fib_nh_common_init+0x129/0x460 [ 85.827058][ T5826] ? __pfx_fib_nh_common_init+0x10/0x10 [ 85.827076][ T5826] ? fib6_nh_init+0xbb9/0x2030 [ 85.827097][ T5826] fib6_nh_init+0x15e4/0x2030 [ 85.827128][ T5826] ? __pfx_fib6_nh_init+0x10/0x10 [ 85.827143][ T5826] ? kasan_save_track+0x4f/0x80 [ 85.827159][ T5826] ? __kasan_kmalloc+0x93/0xb0 [ 85.827176][ T5826] ? rcu_is_watching+0x15/0xb0 [ 85.827203][ T5826] ? pcpu_alloc_noprof+0xd4b/0x16b0 [ 85.827226][ T5826] ? __mutex_unlock_slowpath+0x1cd/0x700 [ 85.827252][ T5826] ? pcpu_memcg_post_alloc_hook+0x131/0x700 [ 85.827273][ T5826] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 85.827299][ T5826] ? __pfx_pcpu_memcg_post_alloc_hook+0x10/0x10 [ 85.827321][ T5826] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 85.827339][ T5826] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 85.827366][ T5826] ? __lock_acquire+0xaac/0xd20 [ 85.827389][ T5826] ip6_route_info_create_nh+0x139/0x870 [ 85.827413][ T5826] ? __pfx_ip6_route_info_create_nh+0x10/0x10 [ 85.827433][ T5826] ? ip6_route_info_create+0x629/0xa70 [ 85.827454][ T5826] ? ip6_route_add+0x4d/0x2f0 [ 85.827471][ T5826] ip6_route_add+0xf6/0x2f0 [ 85.827487][ T5826] ? inet6_rtm_newroute+0x274/0x1c50 [ 85.827505][ T5826] inet6_rtm_newroute+0x284/0x1c50 [ 85.827525][ T5826] ? kasan_quarantine_put+0xdd/0x220 [ 85.827541][ T5826] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.827565][ T5826] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 85.827580][ T5826] ? nlmon_xmit+0xb0/0x100 [ 85.827598][ T5826] ? kmem_cache_free+0x192/0x3f0 [ 85.827623][ T5826] ? __local_bh_enable_ip+0x12d/0x1c0 [ 85.827645][ T5826] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.827665][ T5826] ? __local_bh_enable_ip+0x12d/0x1c0 [ 85.827686][ T5826] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 85.827715][ T5826] ? aa_get_newest_label+0xf7/0x5d0 [ 85.827760][ T5826] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 85.827776][ T5826] rtnetlink_rcv_msg+0x7cc/0xb70 [ 85.827796][ T5826] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 85.827812][ T5826] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 85.827833][ T5826] ? ref_tracker_free+0x63a/0x7d0 [ 85.827847][ T5826] ? __copy_skb_header+0xa7/0x550 [ 85.827875][ T5826] netlink_rcv_skb+0x219/0x490 [ 85.827893][ T5826] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 85.827911][ T5826] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 85.827947][ T5826] ? netlink_deliver_tap+0x2e/0x1b0 [ 85.827963][ T5826] ? netlink_deliver_tap+0x2e/0x1b0 [ 85.827986][ T5826] netlink_unicast+0x758/0x8d0 [ 85.828012][ T5826] netlink_sendmsg+0x805/0xb30 [ 85.828038][ T5826] ? __pfx_netlink_sendmsg+0x10/0x10 [ 85.828059][ T5826] ? aa_sock_msg_perm+0x94/0x160 [ 85.828076][ T5826] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 85.828093][ T5826] ? __pfx_netlink_sendmsg+0x10/0x10 [ 85.828110][ T5826] __sock_sendmsg+0x219/0x270 [ 85.828136][ T5826] ____sys_sendmsg+0x505/0x830 [ 85.828162][ T5826] ? __pfx_____sys_sendmsg+0x10/0x10 [ 85.828191][ T5826] ? import_iovec+0x74/0xa0 [ 85.828215][ T5826] ___sys_sendmsg+0x21f/0x2a0 [ 85.828237][ T5826] ? __pfx____sys_sendmsg+0x10/0x10 [ 85.828258][ T5826] ? do_raw_spin_lock+0x121/0x290 [ 85.828298][ T5826] ? _raw_spin_lock_irq+0xae/0xf0 [ 85.828341][ T5826] __x64_sys_sendmsg+0x19b/0x260 [ 85.828364][ T5826] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 85.828404][ T5826] do_syscall_64+0xf6/0x210 [ 85.828426][ T5826] ? clear_bhb_loop+0x45/0xa0 [ 85.828446][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.828461][ T5826] RIP: 0033:0x7fcefa1628d9 [ 85.828487][ T5826] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 85.828500][ T5826] RSP: 002b:00007ffd70357898 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 85.828516][ T5826] RAX: ffffffffffffffda RBX: 00007fcefa1b04ad RCX: 00007fcefa1628d9 [ 85.828527][ T5826] RDX: 000000001000c840 RSI: 00002000000000c0 RDI: 0000000000000004 [ 85.828537][ T5826] RBP: 00007fcefa1b047d R08: 0000000000000000 R09: 0000555500000000 [ 85.828548][ T5826] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcefa1b03e5 [ 85.828558][ T5826] R13: 0000000000000001 R14: 00007ffd703578e0 R15: 0000000000000003 [ 85.828583][ T5826] [ 85.828599][ T5826] [ 86.423613][ T5826] ============================= [ 86.428432][ T5826] [ BUG: Invalid wait context ] [ 86.433250][ T5826] 6.15.0-rc4-syzkaller-00746-g836b313a14a3 #0 Tainted: G W [ 86.441895][ T5826] ----------------------------- [ 86.446716][ T5826] syz-executor276/5826 is trying to lock: [ 86.452410][ T5826] ffffffff8e021688 (pcpu_alloc_mutex){+.+.}-{4:4}, at: pcpu_alloc_noprof+0x284/0x16b0 [ 86.461980][ T5826] other info that might help us debug this: [ 86.467853][ T5826] context-{5:5} [ 86.471282][ T5826] 1 lock held by syz-executor276/5826: [ 86.476713][ T5826] #0: ffffffff8df3b860 (rcu_read_lock){....}-{1:3}, at: ip6_route_add+0x4d/0x2f0 [ 86.485908][ T5826] stack backtrace: [ 86.489606][ T5826] CPU: 0 UID: 0 PID: 5826 Comm: syz-executor276 Tainted: G W 6.15.0-rc4-syzkaller-00746-g836b313a14a3 #0 PREEMPT(full) [ 86.489619][ T5826] Tainted: [W]=WARN [ 86.489622][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 [ 86.489627][ T5826] Call Trace: [ 86.489632][ T5826] [ 86.489636][ T5826] dump_stack_lvl+0x189/0x250 [ 86.489653][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.489665][ T5826] ? __pfx__printk+0x10/0x10 [ 86.489674][ T5826] ? print_lock_name+0xde/0x100 [ 86.489683][ T5826] __lock_acquire+0xbcf/0xd20 [ 86.489696][ T5826] ? pcpu_alloc_noprof+0x284/0x16b0 [ 86.489708][ T5826] lock_acquire+0x120/0x360 [ 86.489719][ T5826] ? pcpu_alloc_noprof+0x284/0x16b0 [ 86.489733][ T5826] __mutex_lock+0x182/0xe80 [ 86.489746][ T5826] ? pcpu_alloc_noprof+0x284/0x16b0 [ 86.489757][ T5826] ? ip6_route_add+0xf6/0x2f0 [ 86.489766][ T5826] ? inet6_rtm_newroute+0x284/0x1c50 [ 86.489774][ T5826] ? netlink_rcv_skb+0x219/0x490 [ 86.489784][ T5826] ? netlink_unicast+0x758/0x8d0 [ 86.489791][ T5826] ? netlink_sendmsg+0x805/0xb30 [ 86.489800][ T5826] ? __sock_sendmsg+0x219/0x270 [ 86.489813][ T5826] ? ____sys_sendmsg+0x505/0x830 [ 86.489822][ T5826] ? ___sys_sendmsg+0x21f/0x2a0 [ 86.489832][ T5826] ? __x64_sys_sendmsg+0x19b/0x260 [ 86.489842][ T5826] ? do_syscall_64+0xf6/0x210 [ 86.489854][ T5826] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.489863][ T5826] ? pcpu_alloc_noprof+0x284/0x16b0 [ 86.489874][ T5826] ? __pfx___mutex_lock+0x10/0x10 [ 86.489886][ T5826] ? ip_tun_parse_opts+0x118/0xf20 [ 86.489897][ T5826] ? __pfx_ip_tun_parse_opts+0x10/0x10 [ 86.489907][ T5826] pcpu_alloc_noprof+0x284/0x16b0 [ 86.489919][ T5826] ? ip_tun_build_state+0x12e/0x6b0 [ 86.489928][ T5826] ? rcu_is_watching+0x15/0xb0 [ 86.489941][ T5826] ? trace_kmalloc+0x1f/0xd0 [ 86.489952][ T5826] dst_cache_init+0x37/0xc0 [ 86.489960][ T5826] ip_tun_build_state+0x193/0x6b0 [ 86.489969][ T5826] ? __pfx_ip_tun_build_state+0x10/0x10 [ 86.489978][ T5826] ? __lock_acquire+0xaac/0xd20 [ 86.489992][ T5826] ? lwtunnel_build_state+0xe2/0x4c0 [ 86.490010][ T5826] lwtunnel_build_state+0x381/0x4c0 [ 86.490022][ T5826] ? lwtunnel_build_state+0xe2/0x4c0 [ 86.490034][ T5826] fib_nh_common_init+0x129/0x460 [ 86.490044][ T5826] ? __pfx_fib_nh_common_init+0x10/0x10 [ 86.490052][ T5826] ? fib6_nh_init+0xbb9/0x2030 [ 86.490062][ T5826] fib6_nh_init+0x15e4/0x2030 [ 86.490075][ T5826] ? __pfx_fib6_nh_init+0x10/0x10 [ 86.490083][ T5826] ? kasan_save_track+0x4f/0x80 [ 86.490092][ T5826] ? __kasan_kmalloc+0x93/0xb0 [ 86.490102][ T5826] ? rcu_is_watching+0x15/0xb0 [ 86.490116][ T5826] ? pcpu_alloc_noprof+0xd4b/0x16b0 [ 86.490128][ T5826] ? __mutex_unlock_slowpath+0x1cd/0x700 [ 86.490141][ T5826] ? pcpu_memcg_post_alloc_hook+0x131/0x700 [ 86.490153][ T5826] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 86.490164][ T5826] ? __pfx_pcpu_memcg_post_alloc_hook+0x10/0x10 [ 86.490176][ T5826] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 86.490186][ T5826] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 86.490199][ T5826] ? __lock_acquire+0xaac/0xd20 [ 86.490211][ T5826] ip6_route_info_create_nh+0x139/0x870 [ 86.490222][ T5826] ? __pfx_ip6_route_info_create_nh+0x10/0x10 [ 86.490232][ T5826] ? ip6_route_info_create+0x629/0xa70 [ 86.490242][ T5826] ? ip6_route_add+0x4d/0x2f0 [ 86.490251][ T5826] ip6_route_add+0xf6/0x2f0 [ 86.490260][ T5826] ? inet6_rtm_newroute+0x274/0x1c50 [ 86.490269][ T5826] inet6_rtm_newroute+0x284/0x1c50 [ 86.490277][ T5826] ? kasan_quarantine_put+0xdd/0x220 [ 86.490287][ T5826] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.490299][ T5826] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 86.490307][ T5826] ? nlmon_xmit+0xb0/0x100 [ 86.490319][ T5826] ? kmem_cache_free+0x192/0x3f0 [ 86.490330][ T5826] ? __local_bh_enable_ip+0x12d/0x1c0 [ 86.490343][ T5826] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.490354][ T5826] ? __local_bh_enable_ip+0x12d/0x1c0 [ 86.490366][ T5826] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 86.490380][ T5826] ? aa_get_newest_label+0xf7/0x5d0 [ 86.490395][ T5826] ? __pfx_inet6_rtm_newroute+0x10/0x10 [ 86.490402][ T5826] rtnetlink_rcv_msg+0x7cc/0xb70 [ 86.490412][ T5826] ? rtnetlink_rcv_msg+0x1ab/0xb70 [ 86.490420][ T5826] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 86.490429][ T5826] ? ref_tracker_free+0x63a/0x7d0 [ 86.490438][ T5826] ? __copy_skb_header+0xa7/0x550 [ 86.490451][ T5826] netlink_rcv_skb+0x219/0x490 [ 86.490460][ T5826] ? __pfx_rtnetlink_rcv_msg+0x10/0x10 [ 86.490469][ T5826] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 86.490481][ T5826] ? netlink_deliver_tap+0x2e/0x1b0 [ 86.490489][ T5826] ? netlink_deliver_tap+0x2e/0x1b0 [ 86.490499][ T5826] netlink_unicast+0x758/0x8d0 [ 86.490509][ T5826] netlink_sendmsg+0x805/0xb30 [ 86.490520][ T5826] ? __pfx_netlink_sendmsg+0x10/0x10 [ 86.490530][ T5826] ? aa_sock_msg_perm+0x94/0x160 [ 86.490539][ T5826] ? bpf_lsm_socket_sendmsg+0x9/0x20 [ 86.490548][ T5826] ? __pfx_netlink_sendmsg+0x10/0x10 [ 86.490558][ T5826] __sock_sendmsg+0x219/0x270 [ 86.490571][ T5826] ____sys_sendmsg+0x505/0x830 [ 86.490582][ T5826] ? __pfx_____sys_sendmsg+0x10/0x10 [ 86.490594][ T5826] ? import_iovec+0x74/0xa0 [ 86.490607][ T5826] ___sys_sendmsg+0x21f/0x2a0 [ 86.490618][ T5826] ? __pfx____sys_sendmsg+0x10/0x10 [ 86.490629][ T5826] ? do_raw_spin_lock+0x121/0x290 [ 86.490641][ T5826] ? _raw_spin_lock_irq+0xae/0xf0 [ 86.490656][ T5826] __x64_sys_sendmsg+0x19b/0x260 [ 86.490667][ T5826] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 86.490681][ T5826] do_syscall_64+0xf6/0x210 [ 86.490694][ T5826] ? clear_bhb_loop+0x45/0xa0 [ 86.490704][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.490712][ T5826] RIP: 0033:0x7fcefa1628d9 [ 86.490722][ T5826] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 86.490729][ T5826] RSP: 002b:00007ffd70357898 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 86.490738][ T5826] RAX: ffffffffffffffda RBX: 00007fcefa1b04ad RCX: 00007fcefa1628d9 [ 86.490745][ T5826] RDX: 000000001000c840 RSI: 00002000000000c0 RDI: 0000000000000004 [pid 5826] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x5c\x00\x00\x00\x18\x00\x09\x03\x00\x00\x10\x00\x00\x00\x00\x00\x0a\x00\x10\x00\xfc\x04\x00\x0b\x00\x00\x00\x00\x05\x00\x14\x00\x80\x00\x00\x00\x08\x00\x04\x00\x28\x00\x00\x00\x0c\x00\x16\x80\x08\x00\x03\x00\x01\x00\x00\x00\x06\x00\x15\x00\x02\x00\x00\x00\x14\x00\x05\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x08\x00\x17\x00\x08\x00\x00\x00", iov_len=92}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTWAIT|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|0x10000000) = 92 [pid 5826] exit_group(1) = ? [pid 5826] +++ exited with 1 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5826, si_uid=0, si_status=1, si_utime=0, si_stime=110 /* 1.10 s */} --- exit_group(0) = ? +++ exited with 0 +++ [ 86.490750][ T5826] RBP: 00007fcefa1b047d