ci-upstream-rust-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-rust-kasan-gce/syz-executor3958050464 <...> Warning: Permanently added '10.128.1.175' (ED25519) to the list of known hosts. execve("ci-upstream-rust-kasan-gce/syz-executor3958050464", ["ci-upstream-rust-kasan-gce/syz-executor3958050464"], 0x7ffdb4d39610 /* 10 vars */) = 0 brk(NULL) = 0x55556d821000 brk(0x55556d821d80) = 0x55556d821d80 arch_prctl(ARCH_SET_FS, 0x55556d821400) = 0 set_tid_address(0x55556d8216d0) = 5641 set_robust_list(0x55556d8216e0, 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-rust-kasan-gce/syz-executor3958050464", 4096) = 55 getrandom("\x8b\xc7\x3c\x7a\x39\x69\x33\xa0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d821d80 brk(0x55556d842d80) = 0x55556d842d80 brk(0x55556d843000) = 0x55556d843000 mprotect(0x7fd027041000, 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-rust-kasan-gce/strace-static-x86_64: Process 5642 attached , child_tidptr=0x55556d8216d0) = 5642 [pid 5642] set_robust_list(0x55556d8216e0, 24 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] <... set_robust_list resumed>) = 0 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5642] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5642] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5642] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5642] <... rt_sigprocmask resumed>, [], 8) = 0 ci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5643 attached [pid 5642] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5641] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5643 [pid 5643] set_robust_list(0x55556d8216e0, 24ci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5644 attached ) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] set_robust_list(0x55556d8216e0, 24 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5642] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5644 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5642] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5642] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5643] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] <... prctl resumed>) = 0 [pid 5644] setpgid(0, 0) = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5645 attached [pid 5643] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] <... openat resumed>) = 3 [pid 5641] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5645 [pid 5645] set_robust_list(0x55556d8216e0, 24) = 0 [pid 5644] write(3, "1000", 4 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] <... write resumed>) = 4 ci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5646 attached [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] close(3 [pid 5645] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5644] <... close resumed>) = 0 [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5646] set_robust_list(0x55556d8216e0, 24 [pid 5644] write(1, "executing program\n", 18 [pid 5643] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5646 [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5645] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] <... write resumed>) = 18 executing program [pid 5644] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] <... socket resumed>) = 3 [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388459, nlmsg_pid=635427838}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTROUTE|MSG_EOR|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5647 attached [pid 5647] set_robust_list(0x55556d8216e0, 24 [pid 5646] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5647] <... set_robust_list resumed>) = 0 [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] <... prctl resumed>) = 0 [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5647 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] setpgid(0, 0) = 0 ci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5648 attached [pid 5646] setpgid(0, 0 [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] set_robust_list(0x55556d8216e0, 24 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... setpgid resumed>) = 0 [pid 5641] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5648 [pid 5648] <... set_robust_list resumed>) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] <... openat resumed>) = 3 [pid 5646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5648] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5647] write(3, "1000", 4 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5647] <... write resumed>) = 4 [pid 5646] <... openat resumed>) = 3 [pid 5648] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5647] close(3 [pid 5646] write(3, "1000", 4 [pid 5648] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] <... close resumed>) = 0 [pid 5646] <... write resumed>) = 4 [pid 5646] close(3 [pid 5647] write(1, "executing program\n", 18 [pid 5646] <... close resumed>) = 0 executing program ci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5650 attached [pid 5648] <... clone resumed>, child_tidptr=0x55556d8216d0) = 5650 [pid 5647] <... write resumed>) = 18 [pid 5646] write(1, "executing program\n", 18 [pid 5650] set_robust_list(0x55556d8216e0, 24 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] executing program [pid 5650] <... set_robust_list resumed>) = 0 [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5646] <... write resumed>) = 18 [pid 5650] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5647] <... socket resumed>) = 3 [pid 5650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5647] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388459, nlmsg_pid=635427838}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTROUTE|MSG_EOR|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY [pid 5646] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5650] <... prctl resumed>) = 0 [pid 5646] <... socket resumed>) = 3 [pid 5650] setpgid(0, 0 [pid 5646] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388459, nlmsg_pid=635427838}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTROUTE|MSG_EOR|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY [pid 5650] <... setpgid resumed>) = 0 [pid 5650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5650] write(3, "1000", 4) = 4 [pid 5650] close(3) = 0 [pid 5650] write(1, "executing program\n", 18) = 18 executing program [pid 5650] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5650] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388459, nlmsg_pid=635427838}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTROUTE|MSG_EOR|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY [pid 5644] <... sendmsg resumed>) = 20 [pid 5644] socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 4 [pid 5644] ioctl(4, SIOCSIFFLAGS, {ifr_name="lo", ifr_flags=0}) = 0 [pid 5644] exit_group(0) = ? [pid 5644] +++ exited with 0 +++ [pid 5642] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5644, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} --- [pid 5642] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5642] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-rust-kasan-gce/strace-static-x86_64: Process 5653 attached , child_tidptr=0x55556d8216d0) = 5653 [pid 5653] set_robust_list(0x55556d8216e0, 24 [pid 5642] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] <... set_robust_list resumed>) = 0 [pid 5642] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5653] setpgid(0, 0) = 0 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5653] write(3, "1000", 4) = 4 [pid 5653] close(3) = 0 executing program [pid 5653] write(1, "executing program\n", 18) = 18 [pid 5653] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5653] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388459, nlmsg_pid=635427838}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_DONTROUTE|MSG_EOR|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY [pid 5643] kill(-5646, SIGKILL [pid 5645] kill(-5647, SIGKILL [pid 5643] <... kill resumed>) = 0 [pid 5643] kill(5646, SIGKILL [pid 5645] <... kill resumed>) = 0 [pid 5643] <... kill resumed>) = 0 [pid 5645] kill(5647, SIGKILL) = 0 [pid 5648] kill(-5650, SIGKILL) = 0 [pid 5648] kill(5650, SIGKILL) = 0 [pid 5645] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5645] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5645] getdents64(3, 0x55556d8227a0 /* 2 entries */, 32768) = 48 [pid 5645] getdents64(3, 0x55556d8227a0 /* 0 entries */, 32768) = 0 [pid 5645] close(3) = 0 [pid 5643] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5642] kill(-5653, SIGKILL [pid 5643] <... openat resumed>) = 3 [pid 5642] <... kill resumed>) = 0 [pid 5642] kill(5653, SIGKILL) = 0 [pid 5643] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5643] getdents64(3, 0x55556d8227a0 /* 2 entries */, 32768) = 48 [pid 5643] getdents64(3, 0x55556d8227a0 /* 0 entries */, 32768) = 0 [pid 5643] close(3) = 0 [pid 5648] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5648] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5648] getdents64(3, 0x55556d8227a0 /* 2 entries */, 32768) = 48 [pid 5648] getdents64(3, 0x55556d8227a0 /* 0 entries */, 32768) = 0 [pid 5648] close(3) = 0 [pid 5642] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5642] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5642] getdents64(3, 0x55556d8227a0 /* 2 entries */, 32768) = 48 [pid 5642] getdents64(3, 0x55556d8227a0 /* 0 entries */, 32768) = 0 [pid 5642] close(3) = 0 [ 430.132696][ T39] INFO: task syz-executor395:5646 blocked for more than 143 seconds. [ 430.132717][ T39] Not tainted syzkaller #0 [ 430.132724][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.132729][ T39] task:syz-executor395 state:D stack:27144 pid:5646 tgid:5646 ppid:5643 task_flags:0x400140 flags:0x00080002 [ 430.132766][ T39] Call Trace: [ 430.132772][ T39] [ 430.132781][ T39] __schedule+0x1709/0x5530 [ 430.132823][ T39] ? __pfx___schedule+0x10/0x10 [ 430.132851][ T39] rt_mutex_schedule+0x76/0xf0 [ 430.132865][ T39] rt_mutex_slowlock_block+0x55c/0x680 [ 430.132891][ T39] rt_mutex_slowlock+0x2d4/0x780 [ 430.132909][ T39] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.132926][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.132942][ T39] ? stack_trace_save+0xa9/0x100 [ 430.132971][ T39] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.132993][ T39] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.133009][ T39] mutex_lock_nested+0x168/0x1d0 [ 430.133029][ T39] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.133050][ T39] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.133079][ T39] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.133118][ T39] ? rcu_is_watching+0x15/0xb0 [ 430.133133][ T39] ? trace_kmalloc+0x2a/0xf0 [ 430.133155][ T39] ? __nla_parse+0x40/0x60 [ 430.133175][ T39] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.133192][ T39] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.133212][ T39] genl_family_rcv_msg_doit+0x233/0x340 [ 430.133231][ T39] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.133254][ T39] ? bpf_lsm_capable+0x9/0x20 [ 430.133267][ T39] ? security_capable+0x74/0x280 [ 430.133288][ T39] genl_rcv_msg+0x614/0x7a0 [ 430.133307][ T39] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.133321][ T39] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.133347][ T39] netlink_rcv_skb+0x226/0x4a0 [ 430.133367][ T39] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.133383][ T39] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.133409][ T39] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.133428][ T39] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.133450][ T39] genl_rcv+0x28/0x40 [ 430.133463][ T39] netlink_unicast+0x7f5/0x990 [ 430.133487][ T39] netlink_sendmsg+0x813/0xb40 [ 430.133513][ T39] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.133533][ T39] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.133558][ T39] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.133576][ T39] sock_sendmsg_nosec+0x13a/0x180 [ 430.133596][ T39] ____sys_sendmsg+0x565/0x870 [ 430.133621][ T39] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.133644][ T39] ? import_iovec+0x73/0xa0 [ 430.133665][ T39] ___sys_sendmsg+0x2a5/0x360 [ 430.133687][ T39] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.133703][ T39] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.133743][ T39] ? rt_spin_unlock+0x157/0x200 [ 430.133765][ T39] __x64_sys_sendmsg+0x1b7/0x290 [ 430.133784][ T39] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.133814][ T39] do_syscall_64+0x17b/0x530 [ 430.133827][ T39] ? irqentry_exit+0x10f/0x8f0 [ 430.133839][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.133852][ T39] ? clear_bhb_loop+0x40/0x90 [ 430.133870][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.133883][ T39] RIP: 0033:0x7fd026fae639 [ 430.133895][ T39] RSP: 002b:00007ffc56d7f358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.133908][ T39] RAX: ffffffffffffffda RBX: 0000200000000680 RCX: 00007fd026fae639 [ 430.133918][ T39] RDX: 000000000400c884 RSI: 0000200000000640 RDI: 0000000000000003 [ 430.133926][ T39] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.133933][ T39] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc56d7f4d8 [ 430.133941][ T39] R13: 0000000000000002 R14: 00007ffc56d7f380 R15: 00007ffc56d7f370 [ 430.133959][ T39] [ 430.133965][ T39] INFO: task syz-executor395:5650 blocked for more than 143 seconds. [ 430.133974][ T39] Not tainted syzkaller #0 [ 430.133980][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.133985][ T39] task:syz-executor395 state:D stack:27248 pid:5650 tgid:5650 ppid:5648 task_flags:0x400140 flags:0x00080002 [ 430.134017][ T39] Call Trace: [ 430.134021][ T39] [ 430.134028][ T39] __schedule+0x1709/0x5530 [ 430.134051][ T39] ? __kasan_check_byte+0x12/0x40 [ 430.134080][ T39] ? __pfx___schedule+0x10/0x10 [ 430.134113][ T39] rt_mutex_schedule+0x76/0xf0 [ 430.134125][ T39] rt_mutex_slowlock_block+0x55c/0x680 [ 430.134150][ T39] rt_mutex_slowlock+0x2d4/0x780 [ 430.134167][ T39] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.134184][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.134199][ T39] ? stack_trace_save+0xa9/0x100 [ 430.134227][ T39] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.134247][ T39] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.134263][ T39] mutex_lock_nested+0x168/0x1d0 [ 430.134282][ T39] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.134302][ T39] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.134330][ T39] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.134346][ T39] ? rcu_is_watching+0x15/0xb0 [ 430.134360][ T39] ? trace_kmalloc+0x2a/0xf0 [ 430.134382][ T39] ? __nla_parse+0x40/0x60 [ 430.134401][ T39] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.134416][ T39] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.134436][ T39] genl_family_rcv_msg_doit+0x233/0x340 [ 430.134455][ T39] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.134482][ T39] ? bpf_lsm_capable+0x9/0x20 [ 430.134494][ T39] ? security_capable+0x74/0x280 [ 430.134514][ T39] genl_rcv_msg+0x614/0x7a0 [ 430.134532][ T39] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.134546][ T39] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.134572][ T39] netlink_rcv_skb+0x226/0x4a0 [ 430.134594][ T39] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.134609][ T39] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.134635][ T39] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.134653][ T39] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.134674][ T39] genl_rcv+0x28/0x40 [ 430.134687][ T39] netlink_unicast+0x7f5/0x990 [ 430.134711][ T39] netlink_sendmsg+0x813/0xb40 [ 430.134735][ T39] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.134755][ T39] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.134779][ T39] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.134797][ T39] sock_sendmsg_nosec+0x13a/0x180 [ 430.134813][ T39] ____sys_sendmsg+0x565/0x870 [ 430.134837][ T39] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.134860][ T39] ? import_iovec+0x73/0xa0 [ 430.134884][ T39] ___sys_sendmsg+0x2a5/0x360 [ 430.134905][ T39] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.134922][ T39] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.134961][ T39] ? rt_spin_unlock+0x157/0x200 [ 430.134983][ T39] __x64_sys_sendmsg+0x1b7/0x290 [ 430.135003][ T39] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.135033][ T39] do_syscall_64+0x17b/0x530 [ 430.135045][ T39] ? irqentry_exit+0x10f/0x8f0 [ 430.135056][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.135069][ T39] ? clear_bhb_loop+0x40/0x90 [ 430.135089][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.135101][ T39] RIP: 0033:0x7fd026fae639 [ 430.135112][ T39] RSP: 002b:00007ffc56d7f358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.135123][ T39] RAX: ffffffffffffffda RBX: 0000200000000680 RCX: 00007fd026fae639 [ 430.135132][ T39] RDX: 000000000400c884 RSI: 0000200000000640 RDI: 0000000000000003 [ 430.135140][ T39] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.135147][ T39] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc56d7f4d8 [ 430.135155][ T39] R13: 0000000000000002 R14: 00007ffc56d7f380 R15: 00007ffc56d7f370 [ 430.135173][ T39] [ 430.135178][ T39] INFO: task syz-executor395:5653 blocked for more than 143 seconds. [ 430.135186][ T39] Not tainted syzkaller #0 [ 430.135192][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.135197][ T39] task:syz-executor395 state:D stack:27144 pid:5653 tgid:5653 ppid:5642 task_flags:0x400140 flags:0x00080002 [ 430.135228][ T39] Call Trace: [ 430.135232][ T39] [ 430.135238][ T39] __schedule+0x1709/0x5530 [ 430.135273][ T39] ? __pfx___schedule+0x10/0x10 [ 430.135300][ T39] rt_mutex_schedule+0x76/0xf0 [ 430.135312][ T39] rt_mutex_slowlock_block+0x55c/0x680 [ 430.135336][ T39] rt_mutex_slowlock+0x2d4/0x780 [ 430.135354][ T39] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.135370][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.135385][ T39] ? stack_trace_save+0xa9/0x100 [ 430.135413][ T39] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.135434][ T39] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.135449][ T39] mutex_lock_nested+0x168/0x1d0 [ 430.135468][ T39] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.135489][ T39] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.135516][ T39] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.135532][ T39] ? rcu_is_watching+0x15/0xb0 [ 430.135546][ T39] ? trace_kmalloc+0x2a/0xf0 [ 430.135568][ T39] ? __nla_parse+0x40/0x60 [ 430.135590][ T39] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.135605][ T39] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.135625][ T39] genl_family_rcv_msg_doit+0x233/0x340 [ 430.135644][ T39] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.135667][ T39] ? bpf_lsm_capable+0x9/0x20 [ 430.135678][ T39] ? security_capable+0x74/0x280 [ 430.135698][ T39] genl_rcv_msg+0x614/0x7a0 [ 430.135717][ T39] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.135730][ T39] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.135756][ T39] netlink_rcv_skb+0x226/0x4a0 [ 430.135775][ T39] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.135790][ T39] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.135816][ T39] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.135834][ T39] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.135855][ T39] genl_rcv+0x28/0x40 [ 430.135868][ T39] netlink_unicast+0x7f5/0x990 [ 430.135891][ T39] netlink_sendmsg+0x813/0xb40 [ 430.135915][ T39] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.135936][ T39] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.135956][ T39] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.135975][ T39] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.135993][ T39] sock_sendmsg_nosec+0x13a/0x180 [ 430.136009][ T39] ____sys_sendmsg+0x565/0x870 [ 430.136032][ T39] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.136055][ T39] ? import_iovec+0x73/0xa0 [ 430.136076][ T39] ___sys_sendmsg+0x2a5/0x360 [ 430.136104][ T39] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.136120][ T39] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.136159][ T39] ? rt_spin_unlock+0x157/0x200 [ 430.136181][ T39] __x64_sys_sendmsg+0x1b7/0x290 [ 430.136201][ T39] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.136235][ T39] do_syscall_64+0x17b/0x530 [ 430.136247][ T39] ? irqentry_exit+0x10f/0x8f0 [ 430.136258][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.136270][ T39] ? clear_bhb_loop+0x40/0x90 [ 430.136285][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.136297][ T39] RIP: 0033:0x7fd026fae639 [ 430.136307][ T39] RSP: 002b:00007ffc56d7f358 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.136318][ T39] RAX: ffffffffffffffda RBX: 0000200000000680 RCX: 00007fd026fae639 [ 430.136327][ T39] RDX: 000000000400c884 RSI: 0000200000000640 RDI: 0000000000000003 [ 430.136335][ T39] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.136342][ T39] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000036b60 [ 430.136349][ T39] R13: 00007ffc56d7f36c R14: 00007ffc56d7f380 R15: 00007ffc56d7f370 [ 430.136368][ T39] [ 430.136373][ T39] [ 430.136373][ T39] Showing all locks held in the system: [ 430.136381][ T39] locks held by khungtaskd/39: 1, last CPU#1: [ 430.136390][ T39] #0: ffffffff8e3c3880 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 430.136424][ T39] locks held by kworker/u8:2/48: 2, on CPU#0: [ 430.136433][ T39] #0: ffff88801aea4138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480 [ 430.136462][ T39] #1: ffffc90000ba7c60 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x7fd/0x1480 [ 430.136512][ T39] locks held by getty/5353: 2, on CPU#1: [ 430.136520][ T39] #0: ffff888036a4c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.136555][ T39] #1: ffffc900044ce2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 [ 430.136589][ T39] locks held by syz-executor395/5646: 2, on CPU#1: [ 430.136598][ T39] #0: ffffffff8f835c20 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.136626][ T39] #1: ffffffff8e6eeb78 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.136659][ T39] locks held by syz-executor395/5647: 2, on CPU#0: [ 430.136667][ T39] #0: ffffffff8f835c20 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.136695][ T39] #1: ffffffff8e6eeb78 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.136727][ T39] locks held by syz-executor395/5650: 2, on CPU#0: [ 430.136735][ T39] #0: ffffffff8f835c20 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.136763][ T39] #1: ffffffff8e6eeb78 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.136795][ T39] locks held by syz-executor395/5653: 2, on CPU#0: [ 430.136803][ T39] #0: ffffffff8f835c20 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.136831][ T39] #1: ffffffff8e6eeb78 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.136863][ T39] [ 430.136866][ T39] ============================================= [ 430.136866][ T39] [ 430.136872][ T39] NMI backtrace for cpu 1 [ 430.136881][ T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 430.136895][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 430.136902][ T39] Call Trace: [ 430.136907][ T39] [ 430.136912][ T39] dump_stack_lvl+0xe8/0x150 [ 430.136928][ T39] nmi_cpu_backtrace+0x274/0x2d0 [ 430.136945][ T39] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.136962][ T39] nmi_trigger_cpumask_backtrace+0x17a/0x380 [ 430.136980][ T39] sys_info+0x135/0x170 [ 430.137010][ T39] watchdog+0xfd7/0x1030 [ 430.137033][ T39] ? watchdog+0x1c7/0x1030 [ 430.137054][ T39] kthread+0x388/0x470 [ 430.137091][ T39] ? __pfx_watchdog+0x10/0x10 [ 430.137116][ T39] ? __pfx_kthread+0x10/0x10 [ 430.137132][ T39] ret_from_fork+0x514/0xb70 [ 430.137151][ T39] ? __pfx_ret_from_fork+0x10/0x10 [ 430.137167][ T39] ? __switch_to+0xc89/0x1420 [ 430.137182][ T39] ? __pfx_kthread+0x10/0x10 [ 430.137199][ T39] ret_from_fork_asm+0x1a/0x30 [ 430.137223][ T39] [ 430.137228][ T39] Sending NMI from CPU 1 to CPUs 0: [ 430.137274][ C0] NMI backtrace for cpu 0 [ 430.137289][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 430.137308][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 430.137317][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 430.137346][ C0] Code: 0c 74 02 c3 cc cc cc cc 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 13 66 19 00 fb f4 4c d0 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 430.137360][ C0] RSP: 0018:ffffffff8e007ca0 EFLAGS: 00000246 [ 430.137375][ C0] RAX: 00000000000f8aed RBX: ffffffff8199b400 RCX: 0000000080000001 [ 430.137388][ C0] RDX: 0000000000000001 RSI: ffffffff8d98ba58 RDI: ffffffff8bcbd080 [ 430.137399][ C0] RBP: ffffffff8e007d78 R08: ffff8880b8633d1b R09: 1ffff110170c67a3 [ 430.137412][ C0] R10: dffffc0000000000 R11: ffffed10170c67a4 R12: 0000000000000000 [ 430.137423][ C0] R13: 1ffffffff1c1edf0 R14: 1ffffffff1c00f9c R15: dffffc0000000000 [ 430.137436][ C0] FS: 0000000000000000(0000) GS:ffff8881259f2000(0000) knlGS:0000000000000000 [ 430.137450][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 430.137461][ C0] CR2: 000055a1cd15a168 CR3: 000000000e1b0000 CR4: 00000000003526f0 [ 430.137478][ C0] Call Trace: [ 430.137485][ C0] [ 430.137490][ C0] default_idle+0x9/0x20 [ 430.137508][ C0] default_idle_call+0x72/0xb0 [ 430.137526][ C0] do_idle+0x2e0/0x540 [ 430.137545][ C0] ? __pfx_do_idle+0x10/0x10 [ 430.137565][ C0] cpu_startup_entry+0x43/0x60 [ 430.137582][ C0] rest_init+0x378/0x3a0 [ 430.137609][ C0] ? __pfx_rest_init+0x10/0x10 [ 430.137632][ C0] ? __pfx_kernel_init+0x10/0x10 [ 430.137652][ C0] ? __pfx_acpi_hw_get_mode+0x10/0x10 [ 430.137668][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 430.137689][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 430.137711][ C0] ? acpi_enable_subsystem+0x286/0x3c0 [ 430.137738][ C0] start_kernel+0x392/0x3e0 [ 430.137759][ C0] x86_64_start_reservations+0x24/0x30 [ 430.137784][ C0] x86_64_start_kernel+0x137/0x1b0 [ 430.137806][ C0] common_startup_64+0x13e/0x157 [ 430.137831][ C0] [ 430.138247][ T39] Kernel panic - not syncing: hung_task: blocked tasks [ 430.138257][ T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 430.138271][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 430.138278][ T39] Call Trace: [ 430.138282][ T39] [ 430.138287][ T39] vpanic+0x56c/0xa60 [ 430.138303][ T39] ? __pfx_vpanic+0x10/0x10 [ 430.138319][ T39] panic+0xc5/0xd0 [ 430.138331][ T39] ? __pfx_panic+0x10/0x10 [ 430.138344][ T39] ? wq_watchdog_touch+0xf9/0x160 [ 430.138364][ T39] ? nmi_trigger_cpumask_backtrace+0x247/0x380 [ 430.138383][ T39] watchdog+0x1030/0x1030 [ 430.138404][ T39] ? watchdog+0x1c7/0x1030 [ 430.138425][ T39] kthread+0x388/0x470 [ 430.138441][ T39] ? __pfx_watchdog+0x10/0x10 [ 430.138458][ T39] ? __pfx_kthread+0x10/0x10 [ 430.138475][ T39] ret_from_fork+0x514/0xb70 [ 430.138492][ T39] ? __pfx_ret_from_fork+0x10/0x10 [ 430.138508][ T39] ? __switch_to+0xc89/0x1420 [ 430.138531][ T39] ? __pfx_kthread+0x10/0x10 [ 430.138548][ T39] ret_from_fork_asm+0x1a/0x30 [ 430.138572][ T39] [ 430.138812][ T39] Kernel Offset: disabled