ci-upstream-net-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-kasan-gce/syz-executor4267998370 <...> Warning: Permanently added '10.128.1.91' (ED25519) to the list of known hosts. execve("ci-upstream-net-kasan-gce/syz-executor4267998370", ["ci-upstream-net-kasan-gce/syz-executor4267998370"], 0x7fff0be8de70 /* 10 vars */) = 0 brk(NULL) = 0x555590622000 brk(0x555590622d80) = 0x555590622d80 arch_prctl(ARCH_SET_FS, 0x555590622400) = 0 set_tid_address(0x5555906226d0) = 5638 set_robust_list(0x5555906226e0, 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-kasan-gce/syz-executor4267998370", 4096) = 54 getrandom("\x4c\x40\xa5\x6f\x55\x67\x72\x24", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555590622d80 brk(0x555590643d80) = 0x555590643d80 brk(0x555590644000) = 0x555590644000 mprotect(0x7f8867131000, 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-kasan-gce/strace-static-x86_64: Process 5640 attached , child_tidptr=0x5555906226d0) = 5640 [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5640] set_robust_list(0x5555906226e0, 24 [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5640] <... set_robust_list resumed>) = 0 [pid 5638] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5640] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5640] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5640] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5640] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-kasan-gce/strace-static-x86_64: Process 5642 attached ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5641 attached [pid 5638] <... clone resumed>, child_tidptr=0x5555906226d0) = 5641 [pid 5640] <... clone resumed>, child_tidptr=0x5555906226d0) = 5642 [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] set_robust_list(0x5555906226e0, 24 [pid 5641] set_robust_list(0x5555906226e0, 24 [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] <... set_robust_list resumed>) = 0 [pid 5640] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5642] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5638] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5642] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5640] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5642] <... prctl resumed>) = 0 [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5643 attached [pid 5642] setpgid(0, 0) = 0 [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5643] set_robust_list(0x5555906226e0, 24 [pid 5638] <... clone resumed>, child_tidptr=0x5555906226d0) = 5643 [pid 5643] <... set_robust_list resumed>) = 0 [pid 5642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5643] rt_sigprocmask(SIG_SETMASK, []ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5644 attached [pid 5638] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] set_robust_list(0x5555906226e0, 24 [pid 5641] <... clone resumed>, child_tidptr=0x5555906226d0) = 5644 [pid 5644] <... set_robust_list resumed>) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] <... openat resumed>) = 3 [pid 5638] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5638] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] <... prctl resumed>) = 0 [pid 5643] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5642] write(3, "1000", 4 [pid 5638] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] setpgid(0, 0 [pid 5643] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5642] <... write resumed>) = 4 [pid 5644] <... setpgid resumed>) = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECci-upstream-net-kasan-gce/strace-static-x86_64: Process 5646 attached ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5645 attached ) = 3 [pid 5642] close(3 [pid 5638] <... clone resumed>, child_tidptr=0x5555906226d0) = 5645 [pid 5646] set_robust_list(0x5555906226e0, 24 [pid 5643] <... clone resumed>, child_tidptr=0x5555906226d0) = 5646 [pid 5642] <... close resumed>) = 0 [pid 5645] set_robust_list(0x5555906226e0, 24 [pid 5642] write(1, "executing program\n", 18 [pid 5645] <... set_robust_list resumed>) = 0 [pid 5642] <... write resumed>) = 18 [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... set_robust_list resumed>) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [] executing program [pid 5644] write(3, "1000", 4 [pid 5642] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] <... write resumed>) = 4 [pid 5642] <... socket resumed>) = 3 [pid 5638] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5645] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5644] close(3 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=28, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ECHO, nlmsg_seq=7388453, nlmsg_pid=635427837}, "\x02\x00\x00\x00\x08\x00\x01\x00\x2e\x00\x00\x00"], iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_PEEK|MSG_ZEROCOPY}, MSG_EOR|MSG_ZEROCOPY [pid 5638] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] <... close resumed>) = 0 [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 executing program [pid 5645] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] write(1, "executing program\n", 18 [pid 5638] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5644] <... write resumed>) = 18 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5647 attached ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5648 attached [pid 5646] <... prctl resumed>) = 0 [pid 5645] <... clone resumed>, child_tidptr=0x5555906226d0) = 5647 [pid 5644] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5648] set_robust_list(0x5555906226e0, 24 [pid 5646] setpgid(0, 0 [pid 5644] <... socket resumed>) = 3 [pid 5646] <... setpgid resumed>) = 0 [pid 5647] set_robust_list(0x5555906226e0, 24 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=28, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ECHO, nlmsg_seq=7388453, nlmsg_pid=635427837}, "\x02\x00\x00\x00\x08\x00\x01\x00\x2e\x00\x00\x00"], iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_PEEK|MSG_ZEROCOPY}, MSG_EOR|MSG_ZEROCOPY [pid 5638] <... clone resumed>, child_tidptr=0x5555906226d0) = 5648 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5646] <... openat resumed>) = 3 [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5638] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5648] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5638] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] write(3, "1000", 4) = 4 [pid 5646] close(3 [pid 5648] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5647] <... prctl resumed>) = 0 [pid 5646] <... close resumed>) = 0 [pid 5648] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5646] write(1, "executing program\n", 18 [pid 5647] setpgid(0, 0 [pid 5646] <... write resumed>) = 18 executing program ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5651 attached [pid 5647] <... setpgid resumed>) = 0 [pid 5646] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... socket resumed>) = 3 [pid 5647] <... openat resumed>) = 3 [pid 5646] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=28, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ECHO, nlmsg_seq=7388453, nlmsg_pid=635427837}, "\x02\x00\x00\x00\x08\x00\x01\x00\x2e\x00\x00\x00"], iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_PEEK|MSG_ZEROCOPY}, MSG_EOR|MSG_ZEROCOPY [pid 5651] set_robust_list(0x5555906226e0, 24 [pid 5648] <... clone resumed>, child_tidptr=0x5555906226d0) = 5651 [pid 5647] write(3, "1000", 4 [pid 5651] <... set_robust_list resumed>) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] <... write resumed>) = 4 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] close(3 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... close resumed>) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL executing program [pid 5647] write(1, "executing program\n", 18 [pid 5651] <... prctl resumed>) = 0 [pid 5647] <... write resumed>) = 18 [pid 5651] setpgid(0, 0 [pid 5647] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5651] <... setpgid resumed>) = 0 [pid 5647] <... socket resumed>) = 3 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5647] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=28, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ECHO, nlmsg_seq=7388453, nlmsg_pid=635427837}, "\x02\x00\x00\x00\x08\x00\x01\x00\x2e\x00\x00\x00"], iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_PEEK|MSG_ZEROCOPY}, MSG_EOR|MSG_ZEROCOPY [pid 5651] <... openat resumed>) = 3 executing program [pid 5651] write(3, "1000", 4) = 4 [pid 5651] close(3) = 0 [pid 5651] write(1, "executing program\n", 18) = 18 [pid 5651] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [ 81.105352][ T5642] NFSD: Failed to start, no listeners configured. [pid 5651] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=28, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ECHO, nlmsg_seq=7388453, nlmsg_pid=635427837}, "\x02\x00\x00\x00\x08\x00\x01\x00\x2e\x00\x00\x00"], iov_len=28}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_PEEK|MSG_ZEROCOPY}, MSG_EOR|MSG_ZEROCOPY [pid 5642] <... sendmsg resumed>) = 28 [pid 5642] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [ 86.693232][ T10] cfg80211: failed to load regulatory.db [ 271.012324][ T5644] NFSD: Failed to start, no listeners configured. [ 286.366919][ T30] INFO: task syz-executor426:5646 blocked for more than 143 seconds. [ 286.375081][ T30] Not tainted syzkaller #0 [ 286.380083][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.388820][ T30] task:syz-executor426 state:D stack:27784 pid:5646 tgid:5646 ppid:5643 task_flags:0x400140 flags:0x00080002 [ 286.401018][ T30] Call Trace: [ 286.404314][ T30] [ 286.407289][ T30] __schedule+0x17d9/0x56c0 [ 286.411911][ T30] ? __lock_acquire+0x683/0x2cf0 [ 286.416935][ T30] ? __lock_acquire+0x683/0x2cf0 [ 286.421906][ T30] ? stack_depot_save_flags+0x33/0x800 [ 286.427480][ T30] ? __pfx___schedule+0x10/0x10 [ 286.432395][ T30] ? schedule+0x90/0x2b0 [ 286.436702][ T30] schedule+0x164/0x2b0 [ 286.440882][ T30] schedule_preempt_disabled+0x13/0x30 [ 286.446339][ T30] __mutex_lock+0x7bf/0x1550 [ 286.451084][ T30] ? __mutex_lock+0x5d4/0x1550 [ 286.455887][ T30] ? nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 286.461678][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 286.466780][ T30] ? net_generic+0x1e/0x240 [ 286.471314][ T30] ? net_generic+0x1e/0x240 [ 286.475802][ T30] nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 286.481412][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 286.487006][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.493185][ T30] ? bpf_lsm_capable+0x9/0x20 [ 286.497919][ T30] ? security_capable+0x7e/0x2c0 [ 286.502890][ T30] genl_rcv_msg+0x614/0x7a0 [ 286.507449][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.512499][ T30] ? __pfx_nfsd_nl_threads_set_doit+0x10/0x10 [ 286.518646][ T30] netlink_rcv_skb+0x226/0x4a0 [ 286.523460][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.528608][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.534043][ T30] ? down_read+0x2be/0x330 [ 286.538552][ T30] genl_rcv+0x28/0x40 [ 286.542703][ T30] netlink_unicast+0x7bb/0x940 [ 286.547547][ T30] netlink_sendmsg+0x813/0xb40 [ 286.552341][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.557672][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 286.562722][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 286.567706][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.573006][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 286.578153][ T30] ____sys_sendmsg+0x54e/0x850 [ 286.582964][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.588314][ T30] ? import_iovec+0x73/0xa0 [ 286.592837][ T30] ___sys_sendmsg+0x2a5/0x360 [ 286.597576][ T30] ? __lock_acquire+0x683/0x2cf0 [ 286.602533][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.607872][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 286.613104][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 286.618089][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.623318][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.628852][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 286.634183][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.640318][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.646431][ T30] do_syscall_64+0x174/0x580 [ 286.651112][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.657219][ T30] ? clear_bhb_loop+0x40/0x90 [ 286.661927][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.667910][ T30] RIP: 0033:0x7f886709e7b9 [ 286.672345][ T30] RSP: 002b:00007ffd88c37208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.680837][ T30] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f886709e7b9 [ 286.689014][ T30] RDX: 0000000004000080 RSI: 0000200000000100 RDI: 0000000000000003 [ 286.697245][ T30] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 286.705318][ T30] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 286.713377][ T30] R13: 00007f88671361e0 R14: 00007ffd88c37230 R15: 00007ffd88c37220 [ 286.721484][ T30] [ 286.724538][ T30] INFO: task syz-executor426:5647 blocked for more than 143 seconds. [ 286.732878][ T30] Not tainted syzkaller #0 [ 286.737877][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.746585][ T30] task:syz-executor426 state:D stack:27784 pid:5647 tgid:5647 ppid:5645 task_flags:0x400140 flags:0x00080002 [ 286.758759][ T30] Call Trace: [ 286.762032][ T30] [ 286.764948][ T30] __schedule+0x17d9/0x56c0 [ 286.769560][ T30] ? __lock_acquire+0x683/0x2cf0 [ 286.774537][ T30] ? __lock_acquire+0x683/0x2cf0 [ 286.779610][ T30] ? stack_depot_save_flags+0x33/0x800 [ 286.785200][ T30] ? __pfx___schedule+0x10/0x10 [ 286.790142][ T30] ? schedule+0x90/0x2b0 [ 286.794403][ T30] schedule+0x164/0x2b0 [ 286.798617][ T30] schedule_preempt_disabled+0x13/0x30 [ 286.804097][ T30] __mutex_lock+0x7bf/0x1550 [ 286.808791][ T30] ? __mutex_lock+0x5d4/0x1550 [ 286.813592][ T30] ? nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 286.819365][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 286.824436][ T30] ? net_generic+0x1e/0x240 [ 286.829064][ T30] ? net_generic+0x1e/0x240 [ 286.833618][ T30] nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 286.839258][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 286.844843][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.850985][ T30] ? bpf_lsm_capable+0x9/0x20 [ 286.855678][ T30] ? security_capable+0x7e/0x2c0 [ 286.860699][ T30] genl_rcv_msg+0x614/0x7a0 [ 286.865239][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.870299][ T30] ? __pfx_nfsd_nl_threads_set_doit+0x10/0x10 [ 286.876406][ T30] netlink_rcv_skb+0x226/0x4a0 [ 286.881320][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.886388][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.891790][ T30] ? down_read+0x2be/0x330 [ 286.896254][ T30] genl_rcv+0x28/0x40 [ 286.900281][ T30] netlink_unicast+0x7bb/0x940 [ 286.905068][ T30] netlink_sendmsg+0x813/0xb40 [ 286.909937][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.915256][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 286.920287][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.925605][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 286.930704][ T30] ____sys_sendmsg+0x54e/0x850 [ 286.935498][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.940858][ T30] ? import_iovec+0x73/0xa0 [ 286.945384][ T30] ___sys_sendmsg+0x2a5/0x360 [ 286.950116][ T30] ? __lock_acquire+0x683/0x2cf0 [ 286.955523][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.960806][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 286.966060][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 286.971065][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.976425][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.981973][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 286.987341][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.993412][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.999566][ T30] do_syscall_64+0x174/0x580 [ 287.004344][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.010471][ T30] ? clear_bhb_loop+0x40/0x90 [ 287.015173][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.021116][ T30] RIP: 0033:0x7f886709e7b9 [ 287.025549][ T30] RSP: 002b:00007ffd88c37208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 287.034039][ T30] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f886709e7b9 [ 287.042061][ T30] RDX: 0000000004000080 RSI: 0000200000000100 RDI: 0000000000000003 [ 287.050275][ T30] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 287.058292][ T30] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 287.066274][ T30] R13: 00007f88671361e0 R14: 00007ffd88c37230 R15: 00007ffd88c37220 [ 287.075002][ T30] [ 287.078070][ T30] INFO: task syz-executor426:5651 blocked for more than 144 seconds. [ 287.086124][ T30] Not tainted syzkaller #0 [ 287.091161][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.099868][ T30] task:syz-executor426 state:D stack:27784 pid:5651 tgid:5651 ppid:5648 task_flags:0x400140 flags:0x00080002 [ 287.111842][ T30] Call Trace: [ 287.115127][ T30] [ 287.118117][ T30] __schedule+0x17d9/0x56c0 [ 287.122635][ T30] ? __lock_acquire+0x683/0x2cf0 [ 287.127634][ T30] ? __lock_acquire+0x683/0x2cf0 [ 287.132588][ T30] ? stack_depot_save_flags+0x33/0x800 [ 287.138122][ T30] ? ktime_get_real_ts64+0x351/0x3d0 [ 287.143452][ T30] ? __pfx___schedule+0x10/0x10 [ 287.148384][ T30] ? schedule+0x90/0x2b0 [ 287.152646][ T30] schedule+0x164/0x2b0 [ 287.156848][ T30] schedule_preempt_disabled+0x13/0x30 [ 287.162323][ T30] __mutex_lock+0x7bf/0x1550 [ 287.167079][ T30] ? __mutex_lock+0x5d4/0x1550 [ 287.171924][ T30] ? nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.177694][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 287.182754][ T30] ? net_generic+0x1e/0x240 [ 287.187325][ T30] ? net_generic+0x1e/0x240 [ 287.191839][ T30] nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.197470][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 287.203078][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 287.209220][ T30] ? bpf_lsm_capable+0x9/0x20 [ 287.213899][ T30] ? security_capable+0x7e/0x2c0 [ 287.218891][ T30] genl_rcv_msg+0x614/0x7a0 [ 287.223404][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.228525][ T30] ? __pfx_nfsd_nl_threads_set_doit+0x10/0x10 [ 287.234612][ T30] netlink_rcv_skb+0x226/0x4a0 [ 287.239417][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.244467][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 287.249865][ T30] ? down_read+0x2be/0x330 [ 287.254302][ T30] genl_rcv+0x28/0x40 [ 287.258325][ T30] netlink_unicast+0x7bb/0x940 [ 287.263109][ T30] netlink_sendmsg+0x813/0xb40 [ 287.267933][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.273265][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 287.278362][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 287.283315][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.288661][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 287.293708][ T30] ____sys_sendmsg+0x54e/0x850 [ 287.298554][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 287.303862][ T30] ? import_iovec+0x73/0xa0 [ 287.308411][ T30] ___sys_sendmsg+0x2a5/0x360 [ 287.313107][ T30] ? __lock_acquire+0x683/0x2cf0 [ 287.318115][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 287.323343][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 287.328754][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 287.333714][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.338973][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 287.344458][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 287.349794][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.355898][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.362031][ T30] do_syscall_64+0x174/0x580 [ 287.366846][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.373011][ T30] ? clear_bhb_loop+0x40/0x90 [ 287.377732][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.383644][ T30] RIP: 0033:0x7f886709e7b9 [ 287.388132][ T30] RSP: 002b:00007ffd88c37208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 287.397114][ T30] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f886709e7b9 [ 287.405192][ T30] RDX: 0000000004000080 RSI: 0000200000000100 RDI: 0000000000000003 [ 287.413207][ T30] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 287.421228][ T30] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 287.429348][ T30] R13: 00007f88671361e0 R14: 00007ffd88c37230 R15: 00007ffd88c37220 [ 287.437369][ T30] [ 287.440414][ T30] INFO: task syz-executor426:5658 blocked for more than 144 seconds. [ 287.448533][ T30] Not tainted syzkaller #0 [ 287.453476][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.462204][ T30] task:syz-executor426 state:D stack:27784 pid:5658 tgid:5658 ppid:5640 task_flags:0x400140 flags:0x00080002 [ 287.474189][ T30] Call Trace: [ 287.477501][ T30] [ 287.480435][ T30] __schedule+0x17d9/0x56c0 [ 287.484950][ T30] ? __lock_acquire+0x683/0x2cf0 [ 287.489932][ T30] ? __lock_acquire+0x683/0x2cf0 [ 287.494904][ T30] ? stack_depot_save_flags+0x33/0x800 [ 287.500463][ T30] ? __pfx___schedule+0x10/0x10 [ 287.505370][ T30] ? schedule+0x90/0x2b0 [ 287.509679][ T30] schedule+0x164/0x2b0 [ 287.513859][ T30] schedule_preempt_disabled+0x13/0x30 [ 287.519409][ T30] __mutex_lock+0x7bf/0x1550 [ 287.524026][ T30] ? __mutex_lock+0x5d4/0x1550 [ 287.528838][ T30] ? nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.534590][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 287.539663][ T30] ? net_generic+0x1e/0x240 [ 287.544172][ T30] ? net_generic+0x1e/0x240 [ 287.548821][ T30] nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.554392][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 287.560023][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 287.566124][ T30] ? bpf_lsm_capable+0x9/0x20 [ 287.570890][ T30] ? security_capable+0x7e/0x2c0 [ 287.575841][ T30] genl_rcv_msg+0x614/0x7a0 [ 287.580450][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.585494][ T30] ? __pfx_nfsd_nl_threads_set_doit+0x10/0x10 [ 287.591708][ T30] netlink_rcv_skb+0x226/0x4a0 [ 287.596486][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.601640][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 287.606986][ T30] ? down_read+0x2be/0x330 [ 287.611464][ T30] genl_rcv+0x28/0x40 [ 287.615731][ T30] netlink_unicast+0x7bb/0x940 [ 287.620593][ T30] netlink_sendmsg+0x813/0xb40 [ 287.625373][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.631094][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 287.636154][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 287.641232][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.646528][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 287.651594][ T30] ____sys_sendmsg+0x54e/0x850 [ 287.656367][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 287.661699][ T30] ? import_iovec+0x73/0xa0 [ 287.666209][ T30] ___sys_sendmsg+0x2a5/0x360 [ 287.670925][ T30] ? __lock_acquire+0x683/0x2cf0 [ 287.675876][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 287.681152][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 287.686095][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.691347][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 287.697119][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 287.702397][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.708504][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.714571][ T30] do_syscall_64+0x174/0x580 [ 287.719193][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.725264][ T30] ? clear_bhb_loop+0x40/0x90 [ 287.730014][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.735920][ T30] RIP: 0033:0x7f886709e7b9 [ 287.740400][ T30] RSP: 002b:00007ffd88c37208 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 287.748900][ T30] RAX: ffffffffffffffda RBX: 0000200000000300 RCX: 00007f886709e7b9 [ 287.756915][ T30] RDX: 0000000004000080 RSI: 0000200000000100 RDI: 0000000000000003 [ 287.764899][ T30] RBP: 0000000000000000 R08: 0000000000000009 R09: 0000000000000009 [ 287.772950][ T30] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000013c2a [ 287.780987][ T30] R13: 00007ffd88c3721c R14: 00007ffd88c37230 R15: 00007ffd88c37220 [ 287.789036][ T30] [ 287.792141][ T30] [ 287.792141][ T30] Showing all locks held in the system: [ 287.799909][ T30] 1 lock held by khungtaskd/30: [ 287.804766][ T30] #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 287.814919][ T30] 2 locks held by getty/5381: [ 287.819646][ T30] #0: ffff8880325d10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.829457][ T30] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 287.839607][ T30] 2 locks held by syz-executor426/5644: [ 287.845150][ T30] #0: ffffffff9009ebe8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 287.853378][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.863537][ T30] 2 locks held by syz-executor426/5646: [ 287.869205][ T30] #0: ffffffff9009ebe8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 287.877448][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.887523][ T30] 2 locks held by syz-executor426/5647: [ 287.893073][ T30] #0: ffffffff9009ebe8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 287.901361][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.911459][ T30] 2 locks held by syz-executor426/5651: [ 287.917025][ T30] #0: ffffffff9009ebe8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 287.925219][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.935385][ T30] 2 locks held by syz-executor426/5658: [ 287.940978][ T30] #0: ffffffff9009ebe8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 287.949180][ T30] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_threads_set_doit+0x2b9/0xc30 [ 287.959495][ T30] [ 287.961804][ T30] ============================================= [ 287.961804][ T30] [ 287.970354][ T30] NMI backtrace for cpu 1 [ 287.970407][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 287.970426][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 287.970435][ T30] Call Trace: [ 287.970442][ T30] [ 287.970449][ T30] dump_stack_lvl+0xe8/0x150 [ 287.970477][ T30] nmi_cpu_backtrace+0x274/0x2d0 [ 287.970498][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.970526][ T30] nmi_trigger_cpumask_backtrace+0x17a/0x380 [ 287.970550][ T30] sys_info+0x135/0x170 [ 287.970568][ T30] watchdog+0xfd7/0x1030 [ 287.970597][ T30] ? watchdog+0x1c7/0x1030 [ 287.970625][ T30] kthread+0x388/0x470 [ 287.970651][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.970671][ T30] ? __pfx_kthread+0x10/0x10 [ 287.970697][ T30] ret_from_fork+0x514/0xb70 [ 287.970725][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 287.970751][ T30] ? __switch_to+0xc89/0x1420 [ 287.970778][ T30] ? __pfx_kthread+0x10/0x10 [ 287.970805][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.970835][ T30] [ 287.970843][ T30] Sending NMI from CPU 1 to CPUs 0: [ 288.080621][ C0] NMI backtrace for cpu 0 [ 288.080725][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 288.080743][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.080753][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 288.080783][ C0] Code: dc 7d 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 4e 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 [ 288.080806][ C0] RSP: 0018:ffffffff8e807de0 EFLAGS: 00000242 [ 288.080821][ C0] RAX: 00000000000dfe13 RBX: ffffffff819b533c RCX: 0000000080000001 [ 288.080833][ C0] RDX: 0000000000000001 RSI: ffffffff8e23117e RDI: ffffffff8c4bdd80 [ 288.080845][ C0] RBP: ffffffff8e807eb8 R08: ffff8880b86338db R09: 1ffff110170c671b [ 288.080857][ C0] R10: dffffc0000000000 R11: ffffed10170c671c R12: 0000000000000000 [ 288.080869][ C0] R13: 1ffffffff1d11de8 R14: 1ffffffff1d00fc4 R15: dffffc0000000000 [ 288.080882][ C0] FS: 0000000000000000(0000) GS:ffff888124f4f000(0000) knlGS:0000000000000000 [ 288.080896][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 288.080907][ C0] CR2: 000056466ae6aa38 CR3: 000000000e946000 CR4: 00000000003526f0 [ 288.080922][ C0] Call Trace: [ 288.080930][ C0] [ 288.080936][ C0] default_idle+0x9/0x20 [ 288.080961][ C0] default_idle_call+0x72/0xb0 [ 288.080978][ C0] do_idle+0x1cc/0x540 [ 288.081002][ C0] ? __pfx_do_idle+0x10/0x10 [ 288.081029][ C0] cpu_startup_entry+0x43/0x60 [ 288.081051][ C0] rest_init+0x2de/0x300 [ 288.081068][ C0] start_kernel+0x392/0x3e0 [ 288.081104][ C0] x86_64_start_reservations+0x24/0x30 [ 288.081130][ C0] x86_64_start_kernel+0x137/0x1b0 [ 288.081155][ C0] common_startup_64+0x13e/0x157 [ 288.081183][ C0] [ 288.081605][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 288.081619][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.081640][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.081650][ T30] Call Trace: [ 288.081658][ T30] [ 288.081666][ T30] vpanic+0x56c/0xa60 [ 288.081699][ T30] ? __pfx_vpanic+0x10/0x10 [ 288.081727][ T30] ? __down_trylock_console_sem+0x6b/0x110 [ 288.081753][ T30] panic+0xc5/0xd0 [ 288.081779][ T30] ? __pfx_panic+0x10/0x10 [ 288.081805][ T30] ? wq_watchdog_touch+0xf9/0x160 [ 288.081826][ T30] ? nmi_trigger_cpumask_backtrace+0x247/0x380 [ 288.081853][ T30] watchdog+0x1030/0x1030 [ 288.081884][ T30] ? watchdog+0x1c7/0x1030 [ 288.081912][ T30] kthread+0x388/0x470 [ 288.081938][ T30] ? __pfx_watchdog+0x10/0x10 [ 288.081959][ T30] ? __pfx_kthread+0x10/0x10 [ 288.081986][ T30] ret_from_fork+0x514/0xb70 [ 288.082015][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 288.082041][ T30] ? __switch_to+0xc89/0x1420 [ 288.082067][ T30] ? __pfx_kthread+0x10/0x10 [ 288.082094][ T30] ret_from_fork_asm+0x1a/0x30 [ 288.082125][ T30] [ 288.369852][ T30] Kernel Offset: disabled [ 288.374176][ T30] Rebooting in 86400 seconds..