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-executor127945042 <...> Warning: Permanently added '10.128.0.4' (ED25519) to the list of known hosts. execve("ci-upstream-net-this-kasan-gce/syz-executor127945042", ["ci-upstream-net-this-kasan-gce/syz-executor127945042"], 0x7fffe46cbd60 /* 10 vars */) = 0 brk(NULL) = 0x55555753e000 brk(0x55555753ed80) = 0x55555753ed80 arch_prctl(ARCH_SET_FS, 0x55555753e400) = 0 set_tid_address(0x55555753e6d0) = 5661 set_robust_list(0x55555753e6e0, 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-executor127945042", 4096) = 58 getrandom("\x34\x2d\x01\x91\x40\x22\xc0\x2b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555753ed80 brk(0x55555755fd80) = 0x55555755fd80 brk(0x555557560000) = 0x555557560000 mprotect(0x7f17ebbeb000, 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 5662 attached [pid 5662] set_robust_list(0x55555753e6e0, 24 [pid 5661] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5662 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5661] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5662] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5662] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5661] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5661] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5663 attached [pid 5663] set_robust_list(0x55555753e6e0, 24 [pid 5662] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5663 [pid 5662] rt_sigprocmask(SIG_SETMASK, [] [pid 5663] <... set_robust_list resumed>) = 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5663] setpgid(0, 0ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5664 attached ) = 0 [pid 5661] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5664 [pid 5663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5664] set_robust_list(0x55555753e6e0, 24 [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5664] <... set_robust_list resumed>) = 0 [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] <... openat resumed>) = 3 [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5663] write(3, "1000", 4) = 4 [pid 5663] close(3 [pid 5661] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5664] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5663] <... close resumed>) = 0 executing program [pid 5663] write(1, "executing program\n", 18) = 18 [pid 5663] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5661] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5664] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5663] <... socket resumed>) = 3 [pid 5664] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5663] 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=7388453, nlmsg_pid=635427837}, "\x00\x00\x00\x00\x00\x00\x00\x00\x10\x08\x04\x00\x01\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_PROBE|MSG_DONTWAIT|MSG_EOR|MSG_ERRQUEUE|MSG_BATCH|MSG_ZEROCOPY|MSG_FASTOPEN}, MSG_ZEROCOPYci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5666 attached ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5665 attached [pid 5661] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5665 [pid 5666] set_robust_list(0x55555753e6e0, 24 [pid 5665] set_robust_list(0x55555753e6e0, 24 [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] <... set_robust_list resumed>) = 0 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5664] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5666 [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5666] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] rt_sigprocmask(SIG_SETMASK, [] [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5666] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5661] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5666] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5665] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5666] <... prctl resumed>) = 0 [pid 5665] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5666] setpgid(0, 0 [pid 5665] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5667 attached [pid 5666] <... setpgid resumed>) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5668 attached [pid 5661] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5667 [pid 5667] set_robust_list(0x55555753e6e0, 24 [pid 5666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] write(3, "1000", 4) = 4 [pid 5666] close(3 [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5666] <... close resumed>) = 0 [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5668] set_robust_list(0x55555753e6e0, 24 [pid 5667] <... set_robust_list resumed>) = 0 [pid 5661] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5668] <... set_robust_list resumed>) = 0 [pid 5667] rt_sigprocmask(SIG_SETMASK, [] [pid 5666] write(1, "executing program\n", 18 [pid 5665] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5668 executing program [pid 5661] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5666] <... write resumed>) = 18 [pid 5665] rt_sigprocmask(SIG_SETMASK, [] [pid 5668] rt_sigprocmask(SIG_SETMASK, []ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5670 attached [pid 5667] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5666] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5665] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5670] set_robust_list(0x55555753e6e0, 24 [pid 5667] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5666] <... socket resumed>) = 3 [pid 5670] <... set_robust_list resumed>) = 0 [pid 5667] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5666] 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=7388453, nlmsg_pid=635427837}, "\x00\x00\x00\x00\x00\x00\x00\x00\x10\x08\x04\x00\x01\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=40}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_PROBE|MSG_DONTWAIT|MSG_EOR|MSG_ERRQUEUE|MSG_BATCH|MSG_ZEROCOPY|MSG_FASTOPEN}, MSG_ZEROCOPY [pid 5661] <... clone resumed>, child_tidptr=0x55555753e6d0) = 5670 [pid 5670] rt_sigprocmask(SIG_SETMASK, [] [pid 5668] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5667] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5670] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5668] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5668] <... prctl resumed>) = 0 [pid 5670] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5668] setpgid(0, 0ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5671 attached [pid 5670] <... rt_sigprocmask resumed>, [], 8) = 0 [ 429.770449][ T30] INFO: task syz-executor127:5663 blocked for more than 143 seconds. [ 429.778887][ T30] Not tainted syzkaller #0 [ 429.783910][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.793269][ T30] task:syz-executor127 state:D stack:21800 pid:5663 tgid:5663 ppid:5662 task_flags:0x400140 flags:0x00080002 [ 429.805430][ T30] Call Trace: [ 429.808705][ T30] [ 429.811667][ T30] __schedule+0x17d9/0x56c0 [ 429.816286][ T30] ? __lock_acquire+0x683/0x2cf0 [ 429.821272][ T30] ? __lock_acquire+0x683/0x2cf0 [ 429.826234][ T30] ? __pfx___schedule+0x10/0x10 [ 429.831163][ T30] ? schedule+0x90/0x2b0 [ 429.835421][ T30] schedule+0x164/0x2b0 [ 429.839568][ T30] schedule_preempt_disabled+0x13/0x30 [ 429.845057][ T30] __mutex_lock+0x7bf/0x1550 [ 429.849659][ T30] ? __mutex_lock+0x5d4/0x1550 [ 429.854466][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 429.860456][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 429.865488][ T30] ? __asan_memset+0x22/0x50 [ 429.870128][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 429.875730][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 429.881509][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 429.887253][ T30] ? rcu_is_watching+0x15/0xb0 [ 429.892060][ T30] ? trace_kmalloc+0x2a/0xf0 [ 429.896660][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 429.902906][ T30] ? __nla_parse+0x40/0x60 [ 429.907352][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 429.913736][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 429.920140][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 429.925710][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 429.931891][ T30] ? bpf_lsm_capable+0x9/0x20 [ 429.936651][ T30] ? security_capable+0x7e/0x2c0 [ 429.941651][ T30] genl_rcv_msg+0x614/0x7a0 [ 429.946170][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 429.951218][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 429.957384][ T30] netlink_rcv_skb+0x226/0x4a0 [ 429.962184][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 429.967240][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 429.972617][ T30] ? down_read+0x2be/0x330 [ 429.977059][ T30] genl_rcv+0x28/0x40 [ 429.981157][ T30] netlink_unicast+0x7bb/0x940 [ 429.986003][ T30] netlink_sendmsg+0x813/0xb40 [ 429.990805][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 429.996123][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 430.001122][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.006417][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 430.011658][ T30] ____sys_sendmsg+0x54e/0x850 [ 430.016432][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.021778][ T30] ? import_iovec+0x73/0xa0 [ 430.026296][ T30] ___sys_sendmsg+0x2a5/0x360 [ 430.031032][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.035999][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.041261][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 430.046617][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 430.051606][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 430.056831][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.062745][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 430.068062][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.074181][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.080315][ T30] do_syscall_64+0x174/0x580 [ 430.084931][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.091039][ T30] ? clear_bhb_loop+0x40/0x90 [ 430.095746][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.101700][ T30] RIP: 0033:0x7f17ebb586b9 [ 430.106162][ T30] RSP: 002b:00007ffcbee752d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.114616][ T30] RAX: ffffffffffffffda RBX: 00002000000023c0 RCX: 00007f17ebb586b9 [ 430.122619][ T30] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000004 [ 430.130637][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.138616][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffcbee75458 [ 430.146642][ T30] R13: 0000000000000002 R14: 00007ffcbee75300 R15: 00007ffcbee752f0 [ 430.154772][ T30] [ 430.157790][ T30] INFO: task syz-executor127:5666 blocked for more than 143 seconds. [ 430.166007][ T30] Not tainted syzkaller #0 [ 430.170986][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.179640][ T30] task:syz-executor127 state:D stack:26744 pid:5666 tgid:5666 ppid:5664 task_flags:0x400140 flags:0x00080002 [ 430.191614][ T30] Call Trace: [ 430.194896][ T30] [ 430.197816][ T30] __schedule+0x17d9/0x56c0 [ 430.202424][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.207386][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.212406][ T30] ? __pfx___schedule+0x10/0x10 [ 430.217693][ T30] ? schedule+0x90/0x2b0 [ 430.221971][ T30] schedule+0x164/0x2b0 [ 430.226138][ T30] schedule_preempt_disabled+0x13/0x30 [ 430.231637][ T30] __mutex_lock+0x7bf/0x1550 [ 430.236238][ T30] ? __mutex_lock+0x5d4/0x1550 [ 430.241041][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.247001][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 430.252071][ T30] ? __asan_memset+0x22/0x50 [ 430.256670][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 430.262281][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.268015][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.273810][ T30] ? rcu_is_watching+0x15/0xb0 [ 430.278584][ T30] ? trace_kmalloc+0x2a/0xf0 [ 430.283217][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.289381][ T30] ? __nla_parse+0x40/0x60 [ 430.293888][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.300277][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.306609][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 430.312203][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.318291][ T30] ? bpf_lsm_capable+0x9/0x20 [ 430.323015][ T30] ? security_capable+0x7e/0x2c0 [ 430.327965][ T30] genl_rcv_msg+0x614/0x7a0 [ 430.332614][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.337671][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.343896][ T30] netlink_rcv_skb+0x226/0x4a0 [ 430.348684][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.353763][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.359071][ T30] ? down_read+0x2be/0x330 [ 430.363551][ T30] genl_rcv+0x28/0x40 [ 430.367574][ T30] netlink_unicast+0x7bb/0x940 [ 430.372386][ T30] netlink_sendmsg+0x813/0xb40 [ 430.377190][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.382520][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.387568][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 430.392573][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.397874][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 430.402944][ T30] ____sys_sendmsg+0x54e/0x850 [ 430.407718][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.413045][ T30] ? import_iovec+0x73/0xa0 [ 430.417560][ T30] ___sys_sendmsg+0x2a5/0x360 [ 430.422276][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.427230][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.432472][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 430.437704][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 430.442737][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 430.448225][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.453746][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 430.459058][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.465197][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.471309][ T30] do_syscall_64+0x174/0x580 [ 430.475926][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.482687][ T30] ? clear_bhb_loop+0x40/0x90 [ 430.487409][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.493418][ T30] RIP: 0033:0x7f17ebb586b9 [ 430.497866][ T30] RSP: 002b:00007ffcbee752d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.506411][ T30] RAX: ffffffffffffffda RBX: 00002000000023c0 RCX: 00007f17ebb586b9 [ 430.514425][ T30] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000004 [ 430.522754][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.530791][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffcbee75458 [ 430.538944][ T30] R13: 0000000000000002 R14: 00007ffcbee75300 R15: 00007ffcbee752f0 [ 430.546983][ T30] [ 430.550116][ T30] INFO: task syz-executor127:5671 blocked for more than 144 seconds. [ 430.558200][ T30] Not tainted syzkaller #0 [ 430.563188][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.571939][ T30] task:syz-executor127 state:D stack:26752 pid:5671 tgid:5671 ppid:5667 task_flags:0x400140 flags:0x00080002 [ 430.583910][ T30] Call Trace: [ 430.587196][ T30] [ 430.590175][ T30] __schedule+0x17d9/0x56c0 [ 430.594691][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.599627][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.604654][ T30] ? __pfx___schedule+0x10/0x10 [ 430.609525][ T30] ? schedule+0x90/0x2b0 [ 430.613873][ T30] schedule+0x164/0x2b0 [ 430.618058][ T30] schedule_preempt_disabled+0x13/0x30 [ 430.623593][ T30] __mutex_lock+0x7bf/0x1550 [ 430.628293][ T30] ? __mutex_lock+0x5d4/0x1550 [ 430.633449][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.639495][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 430.644578][ T30] ? __asan_memset+0x22/0x50 [ 430.649183][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 430.654796][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.660607][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.666526][ T30] ? rcu_is_watching+0x15/0xb0 [ 430.671360][ T30] ? trace_kmalloc+0x2a/0xf0 [ 430.675961][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.682186][ T30] ? __nla_parse+0x40/0x60 [ 430.686641][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.693036][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.699414][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 430.705130][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.711333][ T30] ? bpf_lsm_capable+0x9/0x20 [ 430.716006][ T30] ? security_capable+0x7e/0x2c0 [ 430.721050][ T30] genl_rcv_msg+0x614/0x7a0 [ 430.725584][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.730715][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.736904][ T30] netlink_rcv_skb+0x226/0x4a0 [ 430.741733][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.746790][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.752315][ T30] ? down_read+0x2be/0x330 [ 430.756749][ T30] genl_rcv+0x28/0x40 [ 430.760809][ T30] netlink_unicast+0x7bb/0x940 [ 430.765674][ T30] netlink_sendmsg+0x813/0xb40 [ 430.770483][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.775775][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.780832][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 430.785777][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.791160][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 430.796228][ T30] ____sys_sendmsg+0x54e/0x850 [ 430.801308][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.806612][ T30] ? import_iovec+0x73/0xa0 [ 430.811170][ T30] ___sys_sendmsg+0x2a5/0x360 [ 430.815902][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.820885][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.826098][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 430.831375][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 430.836322][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 430.841575][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.847057][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 430.852439][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.858525][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.864736][ T30] do_syscall_64+0x174/0x580 [ 430.869432][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.875547][ T30] ? clear_bhb_loop+0x40/0x90 [ 430.880274][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.886175][ T30] RIP: 0033:0x7f17ebb586b9 [ 430.890650][ T30] RSP: 002b:00007ffcbee752d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.899069][ T30] RAX: ffffffffffffffda RBX: 00002000000023c0 RCX: 00007f17ebb586b9 [ 430.907124][ T30] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000004 [ 430.915153][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.923192][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffcbee75458 [ 430.931221][ T30] R13: 0000000000000002 R14: 00007ffcbee75300 R15: 00007ffcbee752f0 [ 430.939211][ T30] [ 430.942303][ T30] INFO: task syz-executor127:5672 blocked for more than 144 seconds. [ 430.950409][ T30] Not tainted syzkaller #0 [ 430.955332][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.964096][ T30] task:syz-executor127 state:D stack:25720 pid:5672 tgid:5672 ppid:5670 task_flags:0x400140 flags:0x00080002 [ 430.976078][ T30] Call Trace: [ 430.979350][ T30] [ 430.982340][ T30] __schedule+0x17d9/0x56c0 [ 430.986860][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.991970][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.996932][ T30] ? __pfx___schedule+0x10/0x10 [ 431.001981][ T30] ? schedule+0x90/0x2b0 [ 431.006276][ T30] schedule+0x164/0x2b0 [ 431.010475][ T30] schedule_preempt_disabled+0x13/0x30 [ 431.015944][ T30] __mutex_lock+0x7bf/0x1550 [ 431.020591][ T30] ? __mutex_lock+0x5d4/0x1550 [ 431.025365][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.031308][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 431.036352][ T30] ? __asan_memset+0x22/0x50 [ 431.040999][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 431.046580][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.052340][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 431.058085][ T30] ? rcu_is_watching+0x15/0xb0 [ 431.062887][ T30] ? trace_kmalloc+0x2a/0xf0 [ 431.067487][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 431.073874][ T30] ? __nla_parse+0x40/0x60 [ 431.078306][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 431.084695][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 431.091355][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 431.096924][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 431.103074][ T30] ? bpf_lsm_capable+0x9/0x20 [ 431.107768][ T30] ? security_capable+0x7e/0x2c0 [ 431.112785][ T30] genl_rcv_msg+0x614/0x7a0 [ 431.117316][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 431.122416][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 431.128595][ T30] netlink_rcv_skb+0x226/0x4a0 [ 431.133477][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 431.138522][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 431.143879][ T30] ? down_read+0x2be/0x330 [ 431.148306][ T30] genl_rcv+0x28/0x40 [ 431.152322][ T30] netlink_unicast+0x7bb/0x940 [ 431.157097][ T30] netlink_sendmsg+0x813/0xb40 [ 431.161918][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 431.167214][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 431.172278][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 431.177225][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 431.182543][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 431.187582][ T30] ____sys_sendmsg+0x54e/0x850 [ 431.192403][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 431.197715][ T30] ? import_iovec+0x73/0xa0 [ 431.202264][ T30] ___sys_sendmsg+0x2a5/0x360 [ 431.206953][ T30] ? __lock_acquire+0x683/0x2cf0 [ 431.211935][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 431.217140][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 431.222418][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 431.227366][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 431.232624][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 431.238100][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 431.243471][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.249547][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.255664][ T30] do_syscall_64+0x174/0x580 [ 431.260324][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.266428][ T30] ? clear_bhb_loop+0x40/0x90 [ 431.271193][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.277214][ T30] RIP: 0033:0x7f17ebb586b9 [ 431.281716][ T30] RSP: 002b:00007ffcbee752d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 431.290182][ T30] RAX: ffffffffffffffda RBX: 00002000000023c0 RCX: 00007f17ebb586b9 [ 431.298151][ T30] RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000004 [ 431.306201][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 431.314223][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007ffcbee75458 [ 431.322222][ T30] R13: 0000000000000002 R14: 00007ffcbee75300 R15: 00007ffcbee752f0 [ 431.330235][ T30] [ 431.333312][ T30] [ 431.333312][ T30] Showing all locks held in the system: [ 431.341098][ T30] 1 lock held by khungtaskd/30: [ 431.345964][ T30] #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 431.355965][ T30] 1 lock held by klogd/4983: [ 431.360648][ T30] #0: ffff8880b863b160 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160 [ 431.370644][ T30] 2 locks held by getty/5379: [ 431.375341][ T30] #0: ffff8880363870a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 431.385264][ T30] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 431.395499][ T30] 2 locks held by syz-executor127/5663: [ 431.401082][ T30] #0: ffffffff9009e468 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.409376][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.419597][ T30] 2 locks held by syz-executor127/5666: [ 431.425168][ T30] #0: ffffffff9009e468 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.433384][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.443638][ T30] 2 locks held by syz-executor127/5668: [ 431.449189][ T30] #0: ffffffff9009e468 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.457399][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.467627][ T30] 2 locks held by syz-executor127/5671: [ 431.473199][ T30] #0: ffffffff9009e468 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.481433][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.491673][ T30] 2 locks held by syz-executor127/5672: [ 431.497214][ T30] #0: ffffffff9009e468 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.505464][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.515807][ T30] [ 431.518142][ T30] ============================================= [ 431.518142][ T30] [ 431.526667][ T30] NMI backtrace for cpu 0 [ 431.526741][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 431.526761][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 431.526770][ T30] Call Trace: [ 431.526777][ T30] [ 431.526783][ T30] dump_stack_lvl+0xe8/0x150 [ 431.526813][ T30] nmi_cpu_backtrace+0x274/0x2d0 [ 431.526870][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 431.526896][ T30] nmi_trigger_cpumask_backtrace+0x17a/0x380 [ 431.526923][ T30] sys_info+0x135/0x170 [ 431.526969][ T30] watchdog+0xfd7/0x1030 [ 431.527001][ T30] ? watchdog+0x1c7/0x1030 [ 431.527028][ T30] kthread+0x388/0x470 [ 431.527054][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.527075][ T30] ? __pfx_kthread+0x10/0x10 [ 431.527101][ T30] ret_from_fork+0x514/0xb70 [ 431.527131][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 431.527155][ T30] ? __switch_to+0xc89/0x1420 [ 431.527181][ T30] ? __pfx_kthread+0x10/0x10 [ 431.527209][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.527242][ T30] [ 431.527265][ T30] Sending NMI from CPU 0 to CPUs 1: [ 431.636922][ C1] NMI backtrace for cpu 1 [ 431.636985][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) [ 431.637005][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 431.637015][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 431.637042][ C1] Code: 3c 7e 02 e9 93 06 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 d3 de 17 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 431.637056][ C1] RSP: 0018:ffffc90000197e40 EFLAGS: 00000246 [ 431.637072][ C1] RAX: 000000000007779f RBX: ffffffff819b533c RCX: 0000000080000001 [ 431.637084][ C1] RDX: 0000000000000001 RSI: ffffffff8e22e488 RDI: ffffffff8c4bdd80 [ 431.637095][ C1] RBP: ffffc90000197f10 R08: ffff8880b87338db R09: 1ffff110170e671b [ 431.637108][ C1] R10: dffffc0000000000 R11: ffffed10170e671c R12: 0000000000000000 [ 431.637119][ C1] R13: 1ffff11003bdc000 R14: 1ffff92000032fd0 R15: dffffc0000000000 [ 431.637132][ C1] FS: 0000000000000000(0000) GS:ffff88812504d000(0000) knlGS:0000000000000000 [ 431.637146][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 431.637157][ C1] CR2: 000056331d50fa38 CR3: 000000000e946000 CR4: 00000000003526f0 [ 431.637173][ C1] Call Trace: [ 431.637181][ C1] [ 431.637187][ C1] default_idle+0x9/0x20 [ 431.637209][ C1] default_idle_call+0x72/0xb0 [ 431.637232][ C1] do_idle+0x1cc/0x540 [ 431.637256][ C1] ? __pfx_do_idle+0x10/0x10 [ 431.637279][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 431.637299][ C1] cpu_startup_entry+0x43/0x60 [ 431.637322][ C1] start_secondary+0x101/0x110 [ 431.637345][ C1] common_startup_64+0x13e/0x157 [ 431.637373][ C1] [ 431.637957][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 431.637972][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 431.637993][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 431.638003][ T30] Call Trace: [ 431.638011][ T30] [ 431.638018][ T30] vpanic+0x56c/0xa60 [ 431.638048][ T30] ? __pfx___schedule+0x10/0x10 [ 431.638069][ T30] ? __pfx_vpanic+0x10/0x10 [ 431.638104][ T30] panic+0xc5/0xd0 [ 431.638129][ T30] ? __pfx_panic+0x10/0x10 [ 431.638154][ T30] ? preempt_schedule_common+0x82/0xd0 [ 431.638174][ T30] ? preempt_schedule_thunk+0x16/0x40 [ 431.638197][ T30] ? nmi_trigger_cpumask_backtrace+0x314/0x380 [ 431.638228][ T30] ? nmi_trigger_cpumask_backtrace+0x319/0x380 [ 431.638257][ T30] watchdog+0x1030/0x1030 [ 431.638287][ T30] ? watchdog+0x1c7/0x1030 [ 431.638315][ T30] kthread+0x388/0x470 [ 431.638342][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.638362][ T30] ? __pfx_kthread+0x10/0x10 [ 431.638388][ T30] ret_from_fork+0x514/0xb70 [ 431.638417][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 431.638437][ T30] ? __switch_to+0xc89/0x1420 [ 431.638460][ T30] ? __pfx_kthread+0x10/0x10 [ 431.638487][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.638519][ T30] [ 431.927775][ T30] Kernel Offset: disabled [ 431.932131][ T30] Rebooting in 86400 seconds..