ci-upstream-net-this-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-this-kasan-gce/syz-executor3516615868 <...> Warning: Permanently added '10.128.1.25' (ED25519) to the list of known hosts. execve("ci-upstream-net-this-kasan-gce/syz-executor3516615868", ["ci-upstream-net-this-kasan-gce/syz-executor3516615868"], 0x7ffecaf652b0 /* 10 vars */) = 0 brk(NULL) = 0x55558058d000 brk(0x55558058dd80) = 0x55558058dd80 arch_prctl(ARCH_SET_FS, 0x55558058d400) = 0 set_tid_address(0x55558058d6d0) = 5646 set_robust_list(0x55558058d6e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-net-this-kasan-gce/syz-executor3516615868", 4096) = 59 getrandom("\xc7\xb4\x69\xc4\xae\x06\xa9\x90", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558058dd80 brk(0x5555805aed80) = 0x5555805aed80 brk(0x5555805af000) = 0x5555805af000 mprotect(0x7fa20f9b0000, 20480, 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 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5647 attached , child_tidptr=0x55558058d6d0) = 5647 [pid 5647] set_robust_list(0x55558058d6e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5646] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558058d6d0) = 5648 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5648 attached [pid 5647] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] set_robust_list(0x55558058d6e0, 24 [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5647] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5647] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5646] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5648] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5648] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5649 attached ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5650 attached ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5651 attached [pid 5647] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5651 [pid 5649] set_robust_list(0x55558058d6e0, 24 [pid 5646] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5650 [pid 5650] set_robust_list(0x55558058d6e0, 24 [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] set_robust_list(0x55558058d6e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5649] <... set_robust_list resumed>) = 0 [pid 5648] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5649 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5649] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5650] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5650] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5652 attached [pid 5649] <... prctl resumed>) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5652] set_robust_list(0x55558058d6e0, 24 [pid 5651] <... prctl resumed>) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5653 attached [pid 5649] setpgid(0, 0 [pid 5651] setpgid(0, 0 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5653] set_robust_list(0x55558058d6e0, 24 [pid 5649] <... setpgid resumed>) = 0 [pid 5651] <... setpgid resumed>) = 0 [pid 5646] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5652 [pid 5653] <... set_robust_list resumed>) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5650] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5653 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] <... openat resumed>) = 3 [pid 5649] <... openat resumed>) = 3 [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] write(3, "1000", 4 [pid 5652] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] <... write resumed>) = 4 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5649] write(3, "1000", 4 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] <... write resumed>) = 4 [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] close(3 [pid 5651] close(3 [pid 5646] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... close resumed>) = 0 [pid 5646] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5653] <... prctl resumed>) = 0 [pid 5649] <... close resumed>) = 0 [pid 5651] write(1, "executing program\n", 18 [pid 5653] setpgid(0, 0 [pid 5651] <... write resumed>) = 18 [pid 5653] <... setpgid resumed>) = 0 [pid 5651] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] <... socket resumed>) = 3 executing program [pid 5651] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x800, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_DONTWAIT}, 0ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5655 attached ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5654 attached [pid 5653] <... openat resumed>) = 3 [pid 5649] write(1, "executing program\n", 18) = 18 [pid 5649] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 executing program [pid 5649] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|0x800, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_DONTWAIT}, 0 [pid 5646] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5654 [pid 5655] set_robust_list(0x55558058d6e0, 24 [pid 5654] set_robust_list(0x55558058d6e0, 24 [pid 5653] write(3, "1000", 4 [pid 5652] <... clone resumed>, child_tidptr=0x55558058d6d0) = 5655 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5654] <... set_robust_list resumed>) = 0 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5653] <... write resumed>) = 4 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] close(3 [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] <... close resumed>) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5653] write(1, "executing program\n", 18) = 18 [pid 5653] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5654] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5653] <... socket resumed>) = 3 executing program [pid 5655] <... prctl resumed>) = 0 [ 286.378744][ T32] INFO: task syz-executor351:5651 blocked for more than 143 seconds. [ 286.378810][ T32] Not tainted syzkaller #0 [ 286.378836][ T32] "echo 0 > ** replaying previous printk message ** [ 286.378836][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.378855][ T32] task:syz-executor351 state:D stack:21384 pid:5651 tgid:5651 ppid:5647 task_flags:0x400140 flags:0x00080002 [ 286.378933][ T32] Call Trace: [ 286.378945][ T32] [ 286.378960][ T32] __schedule+0x17d4/0x5820 [ 286.379029][ T32] ? __pfx___schedule+0x10/0x10 [ 286.379060][ T32] ? schedule+0x90/0x2b0 [ 286.379083][ T32] schedule+0x164/0x2b0 [ 286.379133][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.379156][ T32] __mutex_lock+0x7c1/0x1550 [ 286.379187][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.379218][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.379252][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.379278][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.379308][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.379329][ T32] ? do_syscall_64+0x166/0x520 [ 286.379355][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.379386][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.379416][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.379453][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.379478][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.379509][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.379541][ T32] ? __nla_parse+0x40/0x60 [ 286.379566][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.379593][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.379627][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.379655][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.379685][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.379709][ T32] ? security_capable+0x7e/0x2c0 [ 286.379741][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.379770][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.379791][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.379822][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.379840][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.379862][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.379895][ T32] ? down_read+0x2be/0x330 [ 286.379923][ T32] genl_rcv+0x28/0x40 [ 286.379945][ T32] netlink_unicast+0x7bd/0x940 [ 286.379984][ T32] netlink_sendmsg+0x813/0xb40 [ 286.380013][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.381968][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.381996][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.382018][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.382038][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.382097][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.382130][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.382166][ T32] ? import_iovec+0x73/0xa0 [ 286.382196][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.382213][ T32] ? __lock_acquire+0x6df/0x2e50 [ 286.382234][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.382298][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.382315][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.382337][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.382375][ T32] do_syscall_64+0x166/0x520 [ 286.382397][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.382414][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.382432][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.382454][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.382472][ T32] RIP: 0033:0x7fa20f91d6b9 [ 286.382497][ T32] RSP: 002b:00007ffe70d73368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.382516][ T32] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa20f91d6b9 [ 286.382528][ T32] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000004 [ 286.382540][ T32] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 286.382551][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000 [ 286.382561][ T32] R13: 00007fa20f9b51e0 R14: 00007ffe70d73390 R15: 00007ffe70d73380 [ 286.382590][ T32] [ 286.382602][ T32] INFO: task syz-executor351:5649 blocked for more than 143 seconds. [ 286.382616][ T32] Not tainted syzkaller #0 [ 286.382625][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.382632][ T32] task:syz-executor351 state:D stack:26752 pid:5649 tgid:5649 ppid:5648 task_flags:0x400140 flags:0x00080002 [ 286.382683][ T32] Call Trace: [ 286.382689][ T32] [ 286.382700][ T32] __schedule+0x17d4/0x5820 [ 286.382746][ T32] ? __pfx___schedule+0x10/0x10 [ 286.382776][ T32] ? schedule+0x90/0x2b0 [ 286.382800][ T32] schedule+0x164/0x2b0 [ 286.382822][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.382843][ T32] __mutex_lock+0x7c1/0x1550 [ 286.382871][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.382898][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.382919][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.382940][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.382966][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.382983][ T32] ? do_syscall_64+0x166/0x520 [ 286.383005][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.383030][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.383056][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.383088][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.383115][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.383143][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.383171][ T32] ? __nla_parse+0x40/0x60 [ 286.383191][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.383215][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.383247][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.383278][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.383314][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.383337][ T32] ? security_capable+0x7e/0x2c0 [ 286.383368][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.383398][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.383421][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.383453][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.383474][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.383499][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.383531][ T32] ? down_read+0x2be/0x330 [ 286.383560][ T32] genl_rcv+0x28/0x40 [ 286.383582][ T32] netlink_unicast+0x7bd/0x940 [ 286.383609][ T32] netlink_sendmsg+0x813/0xb40 [ 286.383637][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.383665][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.383688][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.383709][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.383728][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.383751][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.383783][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.383818][ T32] ? import_iovec+0x73/0xa0 [ 286.383847][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.383864][ T32] ? __lock_acquire+0x6df/0x2e50 [ 286.383884][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.383946][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.383962][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.383984][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.384022][ T32] do_syscall_64+0x166/0x520 [ 286.384043][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.384060][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.384078][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.384107][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.384125][ T32] RIP: 0033:0x7fa20f91d6b9 [ 286.384139][ T32] RSP: 002b:00007ffe70d73368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.384156][ T32] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa20f91d6b9 [ 286.384168][ T32] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000004 [ 286.384180][ T32] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 286.384190][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000 [ 286.384201][ T32] R13: 00007fa20f9b51e0 R14: 00007ffe70d73390 R15: 00007ffe70d73380 [ 286.384229][ T32] [ 286.384237][ T32] INFO: task syz-executor351:5653 blocked for more than 143 seconds. [ 286.384249][ T32] Not tainted syzkaller #0 [ 286.384258][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.384265][ T32] task:syz-executor351 state:D stack:26752 pid:5653 tgid:5653 ppid:5650 task_flags:0x400140 flags:0x00080002 [ 286.384315][ T32] Call Trace: [ 286.384320][ T32] [ 286.384331][ T32] __schedule+0x17d4/0x5820 [ 286.384377][ T32] ? __pfx___schedule+0x10/0x10 [ 286.384406][ T32] ? schedule+0x90/0x2b0 [ 286.384430][ T32] schedule+0x164/0x2b0 [ 286.384453][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.384473][ T32] __mutex_lock+0x7c1/0x1550 [ 286.384501][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.384528][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.384549][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.384570][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.384595][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.384611][ T32] ? do_syscall_64+0x166/0x520 [ 286.384633][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.384659][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.384684][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.384717][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.384737][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.384764][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.384792][ T32] ? __nla_parse+0x40/0x60 [ 286.384813][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.384837][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.384868][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.384899][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.384934][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.384957][ T32] ? security_capable+0x7e/0x2c0 [ 286.384987][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.385017][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.385040][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.385072][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.385100][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.385125][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.385159][ T32] ? down_read+0x2be/0x330 [ 286.385186][ T32] genl_rcv+0x28/0x40 [ 286.385208][ T32] netlink_unicast+0x7bd/0x940 [ 286.385236][ T32] netlink_sendmsg+0x813/0xb40 [ 286.385254][ T32] ? lockdep_hardirqs_on+0x7b/0x110 [ 286.385284][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.385310][ T32] ? security_socket_sendmsg+0x23f/0x280 [ 286.385335][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.385353][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.385377][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.385408][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.385443][ T32] ? import_iovec+0x73/0xa0 [ 286.385472][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.385489][ T32] ? __lock_acquire+0x6df/0x2e50 [ 286.385510][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.385572][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.385589][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.385611][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.385648][ T32] do_syscall_64+0x166/0x520 [ 286.385669][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.385685][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.385703][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.385725][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.385742][ T32] RIP: 0033:0x7fa20f91d6b9 [ 286.385757][ T32] RSP: 002b:00007ffe70d73368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.385774][ T32] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa20f91d6b9 [ 286.385785][ T32] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000004 [ 286.385796][ T32] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 286.385807][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000 [ 286.385817][ T32] R13: 00007fa20f9b51e0 R14: 00007ffe70d73390 R15: 00007ffe70d73380 [ 286.385846][ T32] [ 286.385854][ T32] INFO: task syz-executor351:5655 blocked for more than 143 seconds. [ 286.385866][ T32] Not tainted syzkaller #0 [ 286.385874][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.385881][ T32] task:syz-executor351 state:D stack:26752 pid:5655 tgid:5655 ppid:5652 task_flags:0x400140 flags:0x00080002 [ 286.385932][ T32] Call Trace: [ 286.385937][ T32] [ 286.385948][ T32] __schedule+0x17d4/0x5820 [ 286.385993][ T32] ? __pfx___schedule+0x10/0x10 [ 286.386023][ T32] ? schedule+0x90/0x2b0 [ 286.386046][ T32] schedule+0x164/0x2b0 [ 286.386069][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.386089][ T32] __mutex_lock+0x7c1/0x1550 [ 286.386123][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.386156][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.386177][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.386199][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.386223][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.386239][ T32] ? do_syscall_64+0x166/0x520 [ 286.386261][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.386287][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.386312][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.386345][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.386365][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.386393][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.386420][ T32] ? __nla_parse+0x40/0x60 [ 286.386441][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.386465][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.386496][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.386527][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.386563][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.386586][ T32] ? security_capable+0x7e/0x2c0 [ 286.386616][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.386643][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.386666][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.386699][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.386719][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.386744][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.386776][ T32] ? down_read+0x2be/0x330 [ 286.386804][ T32] genl_rcv+0x28/0x40 [ 286.386825][ T32] netlink_unicast+0x7bd/0x940 [ 286.386853][ T32] netlink_sendmsg+0x813/0xb40 [ 286.386881][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.386908][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.386934][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.386953][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.386977][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.387008][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.387043][ T32] ? import_iovec+0x73/0xa0 [ 286.387072][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.387089][ T32] ? __lock_acquire+0x6df/0x2e50 [ 286.387115][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.387178][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.387195][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.387217][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.387269][ T32] do_syscall_64+0x166/0x520 [ 286.387292][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.387308][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.387325][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.387346][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.387364][ T32] RIP: 0033:0x7fa20f91d6b9 [ 286.387378][ T32] RSP: 002b:00007ffe70d73368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.387395][ T32] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa20f91d6b9 [ 286.387408][ T32] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000004 [ 286.387419][ T32] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 286.387429][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000000000 [ 286.387439][ T32] R13: 00007fa20f9b51e0 R14: 00007ffe70d73390 R15: 00007ffe70d73380 [ 286.387468][ T32] [ 286.387488][ T32] [ 286.387488][ T32] Showing all locks held in the system: [ 286.387498][ T32] locks held by pr/ttyS0/16: 2, last CPU#0: [ 286.387511][ T32] #0: ffffffff8ec362b8 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60 [ 286.387557][ T32] #1: ffffffff9ad2bff8 (&port_lock_key){-...}-{3:3}, at: univ8250_console_device_lock+0x67/0xc0 [ 286.387604][ T32] locks held by khungtaskd/32: 1, last CPU#1: [ 286.387616][ T32] #0: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 286.387661][ T32] locks held by kworker/u8:4/59: 5, last CPU#1: [ 286.387673][ T32] #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.387721][ T32] #1: ffffc9000200fc40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.387767][ T32] #2: ffffffff8ebe98f0 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_disable+0x12/0x20 [ 286.387804][ T32] #3: ffffffff8ee38100 (jump_label_mutex){+.+.}-{4:4}, at: static_key_disable_cpuslocked+0x8d/0x1a0 [ 286.387843][ T32] #4: ffffffff8ebff620 (text_mutex){+.+.}-{4:4}, at: arch_jump_label_transform_apply+0x17/0x30 [ 286.387919][ T32] locks held by getty/5367: 2, on CPU#1: [ 286.387931][ T32] #0: ffff8880296600a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.387975][ T32] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 286.388025][ T32] locks held by syz-executor351/5651: 2, on CPU#1: [ 286.388038][ T32] #0: ffffffff902c0a28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.388083][ T32] #1: ffffffff8f09e380 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.388133][ T32] locks held by syz-executor351/5649: 2, on CPU#1: [ 286.388145][ T32] #0: ffffffff902c0a28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.388190][ T32] #1: ffffffff8f09e380 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.388239][ T32] locks held by syz-executor351/5653: 2, on CPU#0: [ 286.388251][ T32] #0: ffffffff902c0a28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.388296][ T32] #1: ffffffff8f09e380 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.388339][ T32] locks held by syz-executor351/5655: 2, on CPU#0: [ 286.388351][ T32] #0: ffffffff902c0a28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.388396][ T32] #1: ffffffff8f09e380 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.392857][ T32] locks held by syz-executor351/5657: 2, on CPU#0: [ 286.392871][ T32] #0: ffffffff902c0a28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.392917][ T32] #1: ffffffff8f09e380 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.392961][ T32] [ 286.392966][ T32] ============================================= [ 286.392966][ T32] [ 286.392986][ T32] NMI backtrace for cpu 1 [ 286.393005][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 286.393024][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 286.393034][ T32] Call Trace: [ 286.393042][ T32] [ 286.393049][ T32] dump_stack_lvl+0xe8/0x150 [ 286.393074][ T32] nmi_cpu_backtrace+0x274/0x2d0 [ 286.393100][ T32] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.393129][ T32] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 286.393151][ T32] sys_info+0x135/0x170 [ 286.393167][ T32] watchdog+0xfd7/0x1030 [ 286.393190][ T32] ? watchdog+0x1c7/0x1030 [ 286.393213][ T32] kthread+0x38b/0x480 [ 286.393230][ T32] ? __pfx_watchdog+0x10/0x10 [ 286.393245][ T32] ? __pfx_kthread+0x10/0x10 [ 286.393263][ T32] ret_from_fork+0x514/0xb70 [ 286.393291][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 286.393317][ T32] ? __switch_to+0xc89/0x1420 [ 286.393342][ T32] ? __pfx_kthread+0x10/0x10 [ 286.393360][ T32] ret_from_fork_asm+0x1a/0x30 [ 286.393398][ T32] [ 286.393405][ T32] Sending NMI from CPU 1 to CPUs 0: [ 286.393431][ C0] NMI backtrace for cpu 0 [ 286.393443][ C0] CPU: 0 UID: 0 PID: 16 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT(full) [ 286.393464][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 286.393474][ C0] RIP: 0010:delay_tsc+0xab/0xd0 [ 286.393495][ C0] Code: e8 6a 7a 01 00 89 c5 0f 01 f9 66 90 49 89 d6 49 c1 e6 20 49 09 c6 eb d7 bf 01 00 00 00 e8 dd 02 b3 f5 65 48 8b 05 a5 38 b2 07 <48> 85 c0 74 0c 5b 41 5e 41 5f 5d c3 cc cc cc cc cc e8 df 8d 51 f5 [ 286.393510][ C0] RSP: 0018:ffffc900001578b8 EFLAGS: 00000093 [ 286.393527][ C0] RAX: 8000000000000001 RBX: 0000000000000899 RCX: ffffffff9a9d5501 [ 286.393541][ C0] RDX: 0000000000000001 RSI: ffffffff8c6d8b60 RDI: 00000000ffffffff [ 286.393554][ C0] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 286.393565][ C0] R10: dffffc0000000000 R11: ffffffff8be1d6c0 R12: 1ffffffff35a5859 [ 286.393580][ C0] R13: 00000000ffffffff R14: 000000978915cb5a R15: 000000000000089a [ 286.393601][ C0] FS: 0000000000000000(0000) GS:ffff888124cdf000(0000) knlGS:0000000000000000 [ 286.393616][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.393629][ C0] CR2: 000055f81f96e4b8 CR3: 0000000012158000 CR4: 00000000003526f0 [ 286.393645][ C0] Call Trace: [ 286.393652][ C0] [ 286.393660][ C0] wait_for_lsr+0x147/0x2f0 [ 286.393689][ C0] __serial8250_console_fifo_write+0xcd/0x3e0 [ 286.393714][ C0] serial8250_console_write+0xaa1/0x1200 [ 286.393746][ C0] ? __pfx_serial8250_console_write+0x10/0x10 [ 286.393772][ C0] ? __schedule+0x17ea/0x5820 [ 286.393802][ C0] nbcon_emit_next_record+0xef5/0x1a90 [ 286.393830][ C0] ? __pfx_nbcon_emit_next_record+0x10/0x10 [ 286.393854][ C0] ? nbcon_context_try_acquire+0x819/0xbd0 [ 286.393881][ C0] ? _raw_spin_lock_irqsave+0x4c/0x60 [ 286.393905][ C0] nbcon_kthread_func+0x679/0x880 [ 286.393927][ C0] ? nbcon_kthread_func+0x163/0x880 [ 286.393946][ C0] ? __pfx_nbcon_kthread_func+0x10/0x10 [ 286.393968][ C0] ? __kthread_parkme+0x71/0x1f0 [ 286.393996][ C0] ? __kthread_parkme+0x199/0x1f0 [ 286.394025][ C0] kthread+0x38b/0x480 [ 286.394042][ C0] ? __pfx_nbcon_kthread_func+0x10/0x10 [ 286.394060][ C0] ? __pfx_kthread+0x10/0x10 [ 286.394077][ C0] ret_from_fork+0x514/0xb70 [ 286.394107][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 286.394136][ C0] ? __switch_to+0xc89/0x1420 [ 286.394163][ C0] ? __pfx_kthread+0x10/0x10 [ 286.394181][ C0] ret_from_fork_asm+0x1a/0x30 [ 286.394217][ C0] [ 286.394429][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 288.484818][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.493934][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.503966][ T32] Call Trace: [ 288.507313][ T32] [ 288.510231][ T32] vpanic+0x56d/0xa60 [ 288.514199][ T32] ? __pfx_vpanic+0x10/0x10 [ 288.518679][ T32] ? console_srcu_read_unlock+0x3a/0x60 [ 288.524205][ T32] panic+0xc5/0xd0 [ 288.527903][ T32] ? __pfx_panic+0x10/0x10 [ 288.532300][ T32] ? wq_watchdog_touch+0xf9/0x160 [ 288.537299][ T32] ? nmi_trigger_cpumask_backtrace+0x24d/0x390 [ 288.543428][ T32] watchdog+0x1030/0x1030 [ 288.547757][ T32] ? watchdog+0x1c7/0x1030 [ 288.552157][ T32] kthread+0x38b/0x480 [ 288.556222][ T32] ? __pfx_watchdog+0x10/0x10 [ 288.560883][ T32] ? __pfx_kthread+0x10/0x10 [ 288.565454][ T32] ret_from_fork+0x514/0xb70 [ 288.570027][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 288.575115][ T32] ? __switch_to+0xc89/0x1420 [ 288.579769][ T32] ? __pfx_kthread+0x10/0x10 [ 288.584346][ T32] ret_from_fork_asm+0x1a/0x30 [ 288.589094][ T32] [ 288.592304][ T32] Kernel Offset: disabled [ 288.596620][ T32] Rebooting in 86400 seconds..