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-executor2869486223 <...> Warning: Permanently added '10.128.1.37' (ED25519) to the list of known hosts. execve("ci-upstream-net-this-kasan-gce/syz-executor2869486223", ["ci-upstream-net-this-kasan-gce/syz-executor2869486223"], 0x7ffc3b71d8a0 /* 10 vars */) = 0 brk(NULL) = 0x555563522000 brk(0x555563522d80) = 0x555563522d80 arch_prctl(ARCH_SET_FS, 0x555563522400) = 0 set_tid_address(0x5555635226d0) = 5633 set_robust_list(0x5555635226e0, 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-executor2869486223", 4096) = 59 getrandom("\xf4\xe8\x02\xb0\x55\x10\xe2\xef", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555563522d80 brk(0x555563543d80) = 0x555563543d80 brk(0x555563544000) = 0x555563544000 mprotect(0x7fed8e3fe000, 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 5634 attached , child_tidptr=0x5555635226d0) = 5634 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] set_robust_list(0x5555635226e0, 24 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5634] rt_sigprocmask(SIG_BLOCK, ~[]ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5635 attached , [], 8) = 0 [pid 5635] set_robust_list(0x5555635226e0, 24 [pid 5634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5636 attached [pid 5633] <... clone resumed>, child_tidptr=0x5555635226d0) = 5635 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5635] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5635] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5635] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5636] set_robust_list(0x5555635226e0, 24 [pid 5634] <... clone resumed>, child_tidptr=0x5555635226d0) = 5636 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5636] <... set_robust_list resumed>) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5637 attached [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5636] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5636] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5637] set_robust_list(0x5555635226e0, 24 [pid 5635] <... clone resumed>, child_tidptr=0x5555635226d0) = 5637 [pid 5637] <... set_robust_list resumed>) = 0 [pid 5635] rt_sigprocmask(SIG_SETMASK, [] [pid 5637] rt_sigprocmask(SIG_SETMASK, [] [pid 5635] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5637] setpgid(0, 0) = 0 [pid 5637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5637] write(3, "1000", 4ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5638 attached [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] <... clone resumed>, child_tidptr=0x5555635226d0) = 5638 [pid 5636] <... prctl resumed>) = 0 [pid 5636] setpgid(0, 0) = 0 [pid 5638] set_robust_list(0x5555635226e0, 24 [pid 5637] <... write resumed>) = 4 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5638] <... set_robust_list resumed>) = 0 [pid 5637] close(3 [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5637] <... close resumed>) = 0 [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5637] write(1, "executing program\n", 18 [pid 5638] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5637] <... write resumed>) = 18 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5637] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5638] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5637] <... socket resumed>) = 3 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 executing program [pid 5638] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5637] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388457, nlmsg_pid=635427836}, "\x00\x00\x00\x00\x00\x00\x00\x00\x20\x11\x02\x00\x91\x85\x06\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_DONTWAIT|MSG_MORE}, MSG_DONTROUTE|MSG_CONFIRM|MSG_ZEROCOPY [pid 5636] <... openat resumed>) = 3 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5639 attached [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5636] write(3, "1000", 4 [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5639] set_robust_list(0x5555635226e0, 24 [pid 5638] <... clone resumed>, child_tidptr=0x5555635226d0) = 5639 [pid 5639] <... set_robust_list resumed>) = 0 [pid 5639] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5636] <... write resumed>) = 4 [pid 5639] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5636] close(3 [pid 5639] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5636] <... close resumed>) = 0 [pid 5636] write(1, "executing program\n", 18ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5640 attached executing program [pid 5639] <... prctl resumed>) = 0 [pid 5636] <... write resumed>) = 18 [pid 5633] <... clone resumed>, child_tidptr=0x5555635226d0) = 5640 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5636] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5640] set_robust_list(0x5555635226e0, 24 [pid 5639] setpgid(0, 0 [pid 5640] <... set_robust_list resumed>) = 0 [pid 5639] <... setpgid resumed>) = 0 [pid 5633] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5640] rt_sigprocmask(SIG_SETMASK, [] [pid 5639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5636] <... socket resumed>) = 3 [pid 5633] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5640] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5636] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388457, nlmsg_pid=635427836}, "\x00\x00\x00\x00\x00\x00\x00\x00\x20\x11\x02\x00\x91\x85\x06\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_DONTWAIT|MSG_MORE}, MSG_DONTROUTE|MSG_CONFIRM|MSG_ZEROCOPY [pid 5633] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5640] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5639] <... openat resumed>) = 3 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5642 attached [pid 5640] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5642] set_robust_list(0x5555635226e0, 24 [pid 5640] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5642] <... set_robust_list resumed>) = 0 [pid 5633] <... clone resumed>, child_tidptr=0x5555635226d0) = 5642 [pid 5642] rt_sigprocmask(SIG_SETMASK, [] [pid 5639] write(3, "1000", 4 [pid 5642] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] <... write resumed>) = 4 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] rt_sigprocmask(SIG_BLOCK, ~[] [ 89.209482][ T5637] lo: entered promiscuous mode [ 89.224194][ T5637] bond0: entered promiscuous mode [ 89.225695][ T5637] dummy0: entered promiscuous mode [pid 5639] close(3 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] <... close resumed>) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5643 attached [pid 5642] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5643] set_robust_list(0x5555635226e0, 24) = 0 [pid 5642] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5639] write(1, "executing program\n", 18 [pid 5640] <... clone resumed>, child_tidptr=0x5555635226d0) = 5643 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5639] <... write resumed>) = 18 [pid 5639] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE executing program [pid 5640] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5640] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5639] <... socket resumed>) = 3 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5644 attached [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5644] set_robust_list(0x5555635226e0, 24 [pid 5643] <... prctl resumed>) = 0 [pid 5642] <... clone resumed>, child_tidptr=0x5555635226d0) = 5644 [pid 5639] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=40, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388457, nlmsg_pid=635427836}, "\x00\x00\x00\x00\x00\x00\x00\x00\x20\x11\x02\x00\x91\x85\x06\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_DONTWAIT|MSG_MORE}, MSG_DONTROUTE|MSG_CONFIRM|MSG_ZEROCOPY [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] setpgid(0, 0 [pid 5642] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... setpgid resumed>) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5642] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5643] <... openat resumed>) = 3 [pid 5644] <... prctl resumed>) = 0 [pid 5643] write(3, "1000", 4 [pid 5644] setpgid(0, 0 [pid 5643] <... write resumed>) = 4 [pid 5643] close(3 [pid 5644] <... setpgid resumed>) = 0 [pid 5643] <... close resumed>) = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5643] write(1, "executing program\n", 18) = 18 executing program [pid 5644] <... openat resumed>) = 3 [pid 5643] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5644] write(3, "1000", 4 [pid 5643] <... socket resumed>) = 3 [pid 5644] <... write resumed>) = 4 [ 89.251326][ T5637] eql: entered promiscuous mode [ 89.263466][ T5637] ifb0: entered promiscuous mode [ 89.285077][ T5637] ifb1: entered promiscuous mode [ 89.300368][ T5637] virtio_net virtio1 eth0: entered promiscuous mode [ 89.328934][ T5637] mac80211_hwsim hwsim0 wlan0: entered promiscuous mode [ 89.347243][ T5637] mac80211_hwsim hwsim1 wlan1: entered promiscuous mode [ 89.348129][ T5637] hwsim0: entered promiscuous mode [ 89.348362][ T5637] ieee802154 phy0 wpan0: entered promiscuous mode [ 89.348470][ T5637] ieee802154 phy1 wpan1: entered promiscuous mode [ 89.348552][ T5637] teql0: entered promiscuous mode [ 89.348761][ T5637] tunl0: entered promiscuous mode [ 89.348974][ T5637] gre0: entered promiscuous mode [ 89.349070][ T5637] gretap0: entered promiscuous mode [ 89.349161][ T5637] erspan0: entered promiscuous mode [ 89.349836][ T5637] ip_vti0: entered promiscuous mode [ 89.350085][ T5637] ip6_vti0: entered promiscuous mode [ 89.350256][ T5637] sit0: entered promiscuous mode [ 89.350422][ T5637] ip6tnl0: entered promiscuous mode [ 89.350599][ T5637] ip6gre0: entered promiscuous mode [ 89.350697][ T5637] lapb0: entered promiscuous mode [ 89.350777][ T5637] lapb1: entered promiscuous mode [ 89.350857][ T5637] lapb2: entered promiscuous mode [ 89.350936][ T5637] lapb3: entered promiscuous mode [ 89.351029][ T5637] lapb4: entered promiscuous mode [ 89.351108][ T5637] lapb5: entered promiscuous mode [ 91.940825][ T189] cfg80211: failed to load regulatory.db [ 286.486890][ T32] INFO: task syz-executor286:5636 blocked for more than 143 seconds. [ 286.486947][ T32] Not tainted syzkaller #0 [ 286.486957][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.486968][ T32] task:syz-executor286 state:D stack:26752 pid:5636 tgid:5636 ppid:5634 task_flags:0x400140 flags:0x00080002 [ 286.487041][ T32] Call Trace: [ 286.487052][ T32] [ 286.487067][ T32] __schedule+0x17db/0x58f0 [ 286.487136][ T32] ? __pfx___schedule+0x10/0x10 [ 286.487166][ T32] ? schedule+0x90/0x2b0 [ 286.487190][ T32] schedule+0x164/0x2b0 [ 286.487220][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.487241][ T32] __mutex_lock+0x7c1/0x1550 [ 286.487270][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.487297][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.487337][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.487360][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.487387][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.487411][ T32] ? do_syscall_64+0x166/0x520 [ 286.487433][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.487458][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.487487][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.487525][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.487549][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.487569][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.487588][ T32] ? __nla_parse+0x40/0x60 [ 286.487615][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.487638][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.487667][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.487697][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.487733][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.487749][ T32] ? security_capable+0x7e/0x2c0 [ 286.487776][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.487804][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.487825][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.487860][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.487889][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.487912][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.487953][ T32] ? down_read+0x2be/0x330 [ 286.487981][ T32] genl_rcv+0x28/0x40 [ 286.488001][ T32] netlink_unicast+0x7bd/0x940 [ 286.488036][ T32] netlink_sendmsg+0x813/0xb40 [ 286.488062][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.488086][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.488108][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.488125][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.488146][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.488176][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.488230][ T32] ? import_iovec+0x73/0xa0 [ 286.488257][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.488288][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.488310][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.488379][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.488404][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.488426][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.488458][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.488485][ T32] do_syscall_64+0x166/0x520 [ 286.488508][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.488526][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.488543][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.488565][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.488583][ T32] RIP: 0033:0x7fed8e36b6f9 [ 286.488604][ T32] RSP: 002b:00007ffc62ffa268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.488623][ T32] RAX: ffffffffffffffda RBX: 0000200000000100 RCX: 00007fed8e36b6f9 [ 286.488636][ T32] RDX: 0000000014044804 RSI: 0000200000000000 RDI: 0000000000000004 [ 286.488648][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.488659][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffc62ffa3e8 [ 286.488671][ T32] R13: 0000000000000002 R14: 00007ffc62ffa290 R15: 00007ffc62ffa280 [ 286.488699][ T32] [ 286.488711][ T32] INFO: task syz-executor286:5637 blocked for more than 143 seconds. [ 286.488724][ T32] Not tainted syzkaller #0 [ 286.488752][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.488760][ T32] task:syz-executor286 state:D stack:21696 pid:5637 tgid:5637 ppid:5635 task_flags:0x400140 flags:0x00080002 [ 286.488810][ T32] Call Trace: [ 286.488816][ T32] [ 286.488826][ T32] __schedule+0x17db/0x58f0 [ 286.488871][ T32] ? __pfx___schedule+0x10/0x10 [ 286.488899][ T32] ? schedule+0x90/0x2b0 [ 286.488923][ T32] schedule+0x164/0x2b0 [ 286.488946][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.488967][ T32] __mutex_lock+0x7c1/0x1550 [ 286.488996][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.489023][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.489048][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.489070][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.489097][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.489120][ T32] ? do_syscall_64+0x166/0x520 [ 286.489142][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.489168][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.489202][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.489240][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.489264][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.489283][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.489303][ T32] ? __nla_parse+0x40/0x60 [ 286.489330][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.489354][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.489384][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.489413][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.489447][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.489465][ T32] ? security_capable+0x7e/0x2c0 [ 286.489492][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.489519][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.489541][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.489576][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.489605][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.489629][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.489670][ T32] ? down_read+0x2be/0x330 [ 286.489700][ T32] genl_rcv+0x28/0x40 [ 286.489722][ T32] netlink_unicast+0x7bd/0x940 [ 286.489757][ T32] netlink_sendmsg+0x813/0xb40 [ 286.489793][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.489818][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.489840][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.489857][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.489878][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.489908][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.489942][ T32] ? import_iovec+0x73/0xa0 [ 286.489972][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.489998][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.490019][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.490086][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.490111][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.490133][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.490166][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.490193][ T32] do_syscall_64+0x166/0x520 [ 286.490220][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.490238][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.490256][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.490278][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.490296][ T32] RIP: 0033:0x7fed8e36b6f9 [ 286.490311][ T32] RSP: 002b:00007ffc62ffa268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.490328][ T32] RAX: ffffffffffffffda RBX: 0000200000000100 RCX: 00007fed8e36b6f9 [ 286.490345][ T32] RDX: 0000000014044804 RSI: 0000200000000000 RDI: 0000000000000004 [ 286.490357][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.490368][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffc62ffa3e8 [ 286.490379][ T32] R13: 0000000000000002 R14: 00007ffc62ffa290 R15: 00007ffc62ffa280 [ 286.490406][ T32] [ 286.490414][ T32] INFO: task syz-executor286:5643 blocked for more than 143 seconds. [ 286.490426][ T32] Not tainted syzkaller #0 [ 286.490435][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.490442][ T32] task:syz-executor286 state:D stack:26752 pid:5643 tgid:5643 ppid:5640 task_flags:0x400140 flags:0x00080002 [ 286.490494][ T32] Call Trace: [ 286.490499][ T32] [ 286.490509][ T32] __schedule+0x17db/0x58f0 [ 286.490554][ T32] ? __pfx___schedule+0x10/0x10 [ 286.490582][ T32] ? schedule+0x90/0x2b0 [ 286.490606][ T32] schedule+0x164/0x2b0 [ 286.490629][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.490650][ T32] __mutex_lock+0x7c1/0x1550 [ 286.490678][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.490705][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.490730][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.490753][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.490779][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.490803][ T32] ? do_syscall_64+0x166/0x520 [ 286.490825][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.490851][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.490880][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.490918][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.490941][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.490961][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.490981][ T32] ? __nla_parse+0x40/0x60 [ 286.491008][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.491031][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.491062][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.491091][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.491135][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.491151][ T32] ? security_capable+0x7e/0x2c0 [ 286.491178][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.491272][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.491297][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.491330][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.491357][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.491385][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.491422][ T32] ? down_read+0x2be/0x330 [ 286.491449][ T32] genl_rcv+0x28/0x40 [ 286.491468][ T32] netlink_unicast+0x7bd/0x940 [ 286.491500][ T32] netlink_sendmsg+0x813/0xb40 [ 286.491524][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.491547][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.491565][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.491587][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.491602][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.491623][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.491649][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.491688][ T32] ? import_iovec+0x73/0xa0 [ 286.491713][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.491736][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.491758][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.491820][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.491845][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.491866][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.491897][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.491923][ T32] do_syscall_64+0x166/0x520 [ 286.491945][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.491963][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.491981][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.492002][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.492019][ T32] RIP: 0033:0x7fed8e36b6f9 [ 286.492035][ T32] RSP: 002b:00007ffc62ffa268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.492055][ T32] RAX: ffffffffffffffda RBX: 0000200000000100 RCX: 00007fed8e36b6f9 [ 286.492068][ T32] RDX: 0000000014044804 RSI: 0000200000000000 RDI: 0000000000000004 [ 286.492080][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.492090][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffc62ffa3e8 [ 286.492101][ T32] R13: 0000000000000002 R14: 00007ffc62ffa290 R15: 00007ffc62ffa280 [ 286.492128][ T32] [ 286.492139][ T32] INFO: task syz-executor286:5644 blocked for more than 143 seconds. [ 286.492154][ T32] Not tainted syzkaller #0 [ 286.492163][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.492171][ T32] task:syz-executor286 state:D stack:26752 pid:5644 tgid:5644 ppid:5642 task_flags:0x400140 flags:0x00080002 [ 286.492226][ T32] Call Trace: [ 286.492233][ T32] [ 286.492244][ T32] __schedule+0x17db/0x58f0 [ 286.492289][ T32] ? __pfx___schedule+0x10/0x10 [ 286.492318][ T32] ? schedule+0x90/0x2b0 [ 286.492342][ T32] schedule+0x164/0x2b0 [ 286.492365][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.492387][ T32] __mutex_lock+0x7c1/0x1550 [ 286.492414][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.492438][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.492462][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.492482][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.492507][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.492541][ T32] ? do_syscall_64+0x166/0x520 [ 286.492561][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.492585][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.492612][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.492647][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.492669][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.492724][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.492743][ T32] ? __nla_parse+0x40/0x60 [ 286.492768][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.492791][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.492819][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.492846][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.492877][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.492892][ T32] ? security_capable+0x7e/0x2c0 [ 286.492918][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.492944][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.492964][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.492995][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.493021][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.493042][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.493078][ T32] ? down_read+0x2be/0x330 [ 286.493104][ T32] genl_rcv+0x28/0x40 [ 286.493122][ T32] netlink_unicast+0x7bd/0x940 [ 286.493153][ T32] netlink_sendmsg+0x813/0xb40 [ 286.493176][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.493203][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.493220][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.493240][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.493255][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.493275][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.493301][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.493331][ T32] ? import_iovec+0x73/0xa0 [ 286.493354][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.493376][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.493395][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.493454][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.493480][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.493500][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.493530][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.493555][ T32] do_syscall_64+0x166/0x520 [ 286.493582][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.493599][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.493615][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.493635][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.493651][ T32] RIP: 0033:0x7fed8e36b6f9 [ 286.493665][ T32] RSP: 002b:00007ffc62ffa268 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.493688][ T32] RAX: ffffffffffffffda RBX: 0000200000000100 RCX: 00007fed8e36b6f9 [ 286.493701][ T32] RDX: 0000000014044804 RSI: 0000200000000000 RDI: 0000000000000004 [ 286.493711][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.493721][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffc62ffa3e8 [ 286.493731][ T32] R13: 0000000000000002 R14: 00007ffc62ffa290 R15: 00007ffc62ffa280 [ 286.493755][ T32] [ 286.493773][ T32] [ 286.493773][ T32] Showing all locks held in the system: [ 286.493784][ T32] locks held by khungtaskd/32: 1, last CPU#1: [ 286.493796][ T32] #0: ffffffff8ed5c920 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 286.493856][ T32] locks held by kworker/u8:11/1396: 2, on CPU#1: [ 286.493868][ T32] #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.493912][ T32] #1: ffffc900059cfc40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.493971][ T32] locks held by getty/5374: 2, on CPU#0: [ 286.493982][ T32] #0: ffff8880348030a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.494029][ T32] #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 286.494071][ T32] locks held by syz-executor286/5636: 2, on CPU#1: [ 286.494082][ T32] #0: ffffffff902c5cc8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.494121][ T32] #1: ffffffff8f09f900 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.494162][ T32] locks held by syz-executor286/5637: 2, on CPU#1: [ 286.494173][ T32] #0: ffffffff902c5cc8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.494222][ T32] #1: ffffffff8f09f900 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.494270][ T32] locks held by syz-executor286/5639: 2, on CPU#0: [ 286.494281][ T32] #0: ffffffff902c5cc8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.494321][ T32] #1: ffffffff8f09f900 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.494363][ T32] locks held by syz-executor286/5643: 2, on CPU#0: [ 286.494374][ T32] #0: ffffffff902c5cc8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.494413][ T32] #1: ffffffff8f09f900 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.494456][ T32] locks held by syz-executor286/5644: 2, on CPU#0: [ 286.494467][ T32] #0: ffffffff902c5cc8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.494506][ T32] #1: ffffffff8f09f900 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.494548][ T32] [ 286.494553][ T32] ============================================= [ 286.494553][ T32] [ 286.494570][ T32] NMI backtrace for cpu 1 [ 286.494587][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 286.494604][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 286.494613][ T32] Call Trace: [ 286.494620][ T32] [ 286.494626][ T32] dump_stack_lvl+0xe8/0x150 [ 286.494650][ T32] nmi_cpu_backtrace+0x274/0x2d0 [ 286.494668][ T32] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.494706][ T32] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 286.494725][ T32] sys_info+0x135/0x170 [ 286.494749][ T32] watchdog+0xfd7/0x1030 [ 286.494771][ T32] ? watchdog+0x1c7/0x1030 [ 286.494791][ T32] kthread+0x38b/0x480 [ 286.494807][ T32] ? __pfx_watchdog+0x10/0x10 [ 286.494821][ T32] ? __pfx_kthread+0x10/0x10 [ 286.494837][ T32] ret_from_fork+0x514/0xb70 [ 286.494854][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 286.494869][ T32] ? __switch_to+0xc89/0x1420 [ 286.494894][ T32] ? __pfx_kthread+0x10/0x10 [ 286.494910][ T32] ret_from_fork_asm+0x1a/0x30 [ 286.494947][ T32] [ 286.494953][ T32] Sending NMI from CPU 1 to CPUs 0: [ 286.495028][ C0] NMI backtrace for cpu 0 [ 286.495044][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 286.495064][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 286.495075][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 286.495102][ C0] Code: 3c 88 02 e9 83 08 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d e3 21 23 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 286.495117][ C0] RSP: 0018:ffffffff8ea07ca0 EFLAGS: 00000242 [ 286.495133][ C0] RAX: 00000000000c81d5 RBX: ffffffff819bbb9c RCX: 8000000000000001 [ 286.495147][ C0] RDX: 0000000000000001 RSI: ffffffff8e41591d RDI: ffffffff8c6dac80 [ 286.495160][ C0] RBP: ffffffff8ea07d78 R08: ffff8880b8633a1b R09: 1ffff110170c6743 [ 286.495174][ C0] R10: dffffc0000000000 R11: ffffed10170c6744 R12: 0000000000000000 [ 286.495193][ C0] R13: 1ffffffff1d51e00 R14: 1ffffffff1d40f9c R15: dffffc0000000000 [ 286.495207][ C0] FS: 0000000000000000(0000) GS:ffff888124cca000(0000) knlGS:0000000000000000 [ 286.495223][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.495235][ C0] CR2: 0000555916941a90 CR3: 000000001c774000 CR4: 00000000003526f0 [ 286.495252][ C0] Call Trace: [ 286.495259][ C0] [ 286.495266][ C0] default_idle+0x9/0x20 [ 286.495291][ C0] default_idle_call+0x72/0xb0 [ 286.495318][ C0] do_idle+0x1cc/0x540 [ 286.495337][ C0] ? __pfx_do_idle+0x10/0x10 [ 286.495358][ C0] cpu_startup_entry+0x43/0x60 [ 286.495375][ C0] rest_init+0x378/0x3a0 [ 286.495391][ C0] ? __pfx_rest_init+0x10/0x10 [ 286.495411][ C0] ? __pfx_kernel_init+0x10/0x10 [ 286.495429][ C0] ? __pfx_acpi_hw_get_mode+0x10/0x10 [ 286.495458][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 286.495481][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 286.495504][ C0] ? acpi_enable_subsystem+0x286/0x3c0 [ 286.495539][ C0] start_kernel+0x392/0x3e0 [ 286.495570][ C0] x86_64_start_reservations+0x24/0x30 [ 286.495593][ C0] x86_64_start_kernel+0x137/0x1b0 [ 286.495616][ C0] common_startup_64+0x13e/0x157 [ 286.495648][ C0] [ 286.496292][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 288.533329][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.542446][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 288.552554][ T32] Call Trace: [ 288.555879][ T32] [ 288.558814][ T32] vpanic+0x56d/0xa60 [ 288.562831][ T32] ? __pfx___schedule+0x10/0x10 [ 288.567714][ T32] ? __pfx_vpanic+0x10/0x10 [ 288.572249][ T32] panic+0xc5/0xd0 [ 288.576025][ T32] ? __pfx_panic+0x10/0x10 [ 288.580513][ T32] ? preempt_schedule_common+0x7f/0xd0 [ 288.586009][ T32] ? preempt_schedule_thunk+0x16/0x40 [ 288.591504][ T32] ? nmi_trigger_cpumask_backtrace+0x31a/0x390 [ 288.597686][ T32] ? nmi_trigger_cpumask_backtrace+0x31f/0x390 [ 288.603864][ T32] watchdog+0x1030/0x1030 [ 288.608254][ T32] ? watchdog+0x1c7/0x1030 [ 288.612699][ T32] kthread+0x38b/0x480 [ 288.616791][ T32] ? __pfx_watchdog+0x10/0x10 [ 288.621487][ T32] ? __pfx_kthread+0x10/0x10 [ 288.626120][ T32] ret_from_fork+0x514/0xb70 [ 288.630730][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 288.635890][ T32] ? __switch_to+0xc89/0x1420 [ 288.640679][ T32] ? __pfx_kthread+0x10/0x10 [ 288.645287][ T32] ret_from_fork_asm+0x1a/0x30 [ 288.650091][ T32] [ 288.653949][ T32] Kernel Offset: disabled [ 288.658309][ T32] Rebooting in 86400 seconds..