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-executor2526699797 <...> Warning: Permanently added '10.128.0.53' (ED25519) to the list of known hosts. execve("ci-upstream-net-this-kasan-gce/syz-executor2526699797", ["ci-upstream-net-this-kasan-gce/syz-executor2526699797"], 0x7fffa5b5e330 /* 10 vars */) = 0 brk(NULL) = 0x55558377c000 brk(0x55558377cd80) = 0x55558377cd80 arch_prctl(ARCH_SET_FS, 0x55558377c400) = 0 set_tid_address(0x55558377c6d0) = 5644 set_robust_list(0x55558377c6e0, 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-executor2526699797", 4096) = 59 getrandom("\x46\xe1\xd1\xcc\x6d\x73\x74\xa2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558377cd80 brk(0x55558379dd80) = 0x55558379dd80 brk(0x55558379e000) = 0x55558379e000 mprotect(0x7f1e885f1000, 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 5645 attached , child_tidptr=0x55558377c6d0) = 5645 [pid 5645] set_robust_list(0x55558377c6e0, 24) = 0 [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5646 attached [pid 5646] set_robust_list(0x55558377c6e0, 24 [pid 5645] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5646 [pid 5644] rt_sigprocmask(SIG_SETMASK, []ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5647 attached , NULL, 8) = 0 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5644] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] set_robust_list(0x55558377c6e0, 24 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5647 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5645] rt_sigprocmask(SIG_SETMASK, []ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5648 attached [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5648 [pid 5648] set_robust_list(0x55558377c6e0, 24 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] <... prctl resumed>) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5649 attached [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] setpgid(0, 0) = 0 [pid 5644] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] set_robust_list(0x55558377c6e0, 24 [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5646] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5649 [pid 5649] <... set_robust_list resumed>) = 0 [pid 5648] rt_sigprocmask(SIG_BLOCK, ~[]ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5650 attached [pid 5649] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5647] <... openat resumed>) = 3 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5649] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] <... prctl resumed>) = 0 [pid 5649] setpgid(0, 0) = 0 [pid 5647] write(3, "1000", 4 [pid 5644] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5650 [pid 5650] set_robust_list(0x55558377c6e0, 24 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5648] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5649] <... openat resumed>) = 3 [pid 5647] <... write resumed>) = 4 [pid 5647] close(3) = 0 [pid 5647] write(1, "executing program\n", 18) = 18 [pid 5649] write(3, "1000", 4 [pid 5647] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5649] <... write resumed>) = 4 [pid 5647] <... socket resumed>) = 3 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5651 attached [pid 5644] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5649] close(3 [pid 5647] socketpair(AF_UNIX, SOCK_SEQPACKET, 0 [pid 5644] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5651] set_robust_list(0x55558377c6e0, 24 [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] <... close resumed>) = 0 [pid 5647] <... socketpair resumed>, [4, 5]) = 0 [pid 5644] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5651] <... set_robust_list resumed>) = 0 [pid 5650] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5649] write(1, "executing program\n", 18 [pid 5648] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5651 [pid 5650] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5650] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] <... write resumed>) = 18 [pid 5647] ioctl(5, SIOCGIFINDEX, {ifr_name="lo" [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5647] <... ioctl resumed>, ifr_ifindex=1}) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5649] <... socket resumed>) = 3 executing program executing program [pid 5651] <... prctl resumed>) = 0 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5653 attached ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5652 attached [pid 5649] socketpair(AF_UNIX, SOCK_SEQPACKET, 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_MULTI|NLM_F_ACK|NLM_F_ECHO|0xd00, nlmsg_seq=7388461, nlmsg_pid=0}, "\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\x0a\x00\xff\xff\xff\xff\x00\x00\x03\x00\x08\x00\x01\x00\x74\x62\x66\x00\x34\x00\x02\x00\x28\x00\x01\x00\xea\x00\xfd\xff\x00\x00\x09\x00\x05\x00\x00\x00\x12\x02\x00\x00\x01\x04\x01\x80\x00\x14\x00\x00\xa5\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x10\x08\x00\x06\x00\xff\xff\xff\x7f"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_EOR|MSG_NOSIGNAL|MSG_BATCH [pid 5644] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5653 [pid 5653] set_robust_list(0x55558377c6e0, 24 [pid 5652] set_robust_list(0x55558377c6e0, 24 [pid 5651] setpgid(0, 0 [pid 5650] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5652 [pid 5649] <... socketpair resumed>, [4, 5]) = 0 [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] <... set_robust_list resumed>) = 0 [pid 5653] rt_sigprocmask(SIG_SETMASK, [] [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5653] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5654 attached [pid 5654] set_robust_list(0x55558377c6e0, 24) = 0 [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] <... setpgid resumed>) = 0 [pid 5649] ioctl(5, SIOCGIFINDEX, {ifr_name="lo" [pid 5654] <... prctl resumed>) = 0 [pid 5649] <... ioctl resumed>, ifr_ifindex=1}) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_MULTI|NLM_F_ACK|NLM_F_ECHO|0xd00, nlmsg_seq=7388461, nlmsg_pid=0}, "\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\x0a\x00\xff\xff\xff\xff\x00\x00\x03\x00\x08\x00\x01\x00\x74\x62\x66\x00\x34\x00\x02\x00\x28\x00\x01\x00\xea\x00\xfd\xff\x00\x00\x09\x00\x05\x00\x00\x00\x12\x02\x00\x00\x01\x04\x01\x80\x00\x14\x00\x00\xa5\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x10\x08\x00\x06\x00\xff\xff\xff\x7f"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_EOR|MSG_NOSIGNAL|MSG_BATCH [pid 5654] setpgid(0, 0 [pid 5653] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5654 [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] <... openat resumed>) = 3 [pid 5647] <... sendmsg resumed>) = 96 [pid 5654] <... setpgid resumed>) = 0 [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5653] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] write(3, "1000", 4 [pid 5649] <... sendmsg resumed>) = 96 [pid 5647] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] write(3, "1000", 4 [pid 5652] <... prctl resumed>) = 0 [pid 5651] <... write resumed>) = 4 [pid 5649] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5647] <... socket resumed>) = 6 [pid 5654] <... write resumed>) = 4 [pid 5652] setpgid(0, 0 [pid 5651] close(3 [pid 5649] <... socket resumed>) = 6 [pid 5654] close(3 [pid 5652] <... setpgid resumed>) = 0 [pid 5651] <... close resumed>) = 0 [pid 5647] sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388456, nlmsg_pid=635427839}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH}, MSG_PROBE|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL|MSG_ZEROCOPY|MSG_FASTOPEN [pid 5654] <... close resumed>) = 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] write(1, "executing program\n", 18 [pid 5649] sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388456, nlmsg_pid=635427839}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH}, MSG_PROBE|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL|MSG_ZEROCOPY|MSG_FASTOPEN executing program [pid 5654] write(1, "executing program\n", 18 [pid 5652] <... openat resumed>) = 3 [pid 5651] <... write resumed>) = 18 executing program [pid 5652] write(3, "1000", 4 [pid 5651] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5654] <... write resumed>) = 18 [pid 5654] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5651] <... socket resumed>) = 3 [pid 5654] <... socket resumed>) = 3 [pid 5652] <... write resumed>) = 4 [pid 5651] socketpair(AF_UNIX, SOCK_SEQPACKET, 0 [pid 5652] close(3) = 0 [pid 5652] write(1, "executing program\n", 18) = 18 executing program [pid 5654] socketpair(AF_UNIX, SOCK_SEQPACKET, 0 [pid 5652] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5651] <... socketpair resumed>, [4, 5]) = 0 [pid 5652] <... socket resumed>) = 3 [pid 5652] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [4, 5]) = 0 [pid 5652] ioctl(5, SIOCGIFINDEX, {ifr_name="lo", ifr_ifindex=1}) = 0 [pid 5652] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_MULTI|NLM_F_ACK|NLM_F_ECHO|0xd00, nlmsg_seq=7388461, nlmsg_pid=0}, "\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\x0a\x00\xff\xff\xff\xff\x00\x00\x03\x00\x08\x00\x01\x00\x74\x62\x66\x00\x34\x00\x02\x00\x28\x00\x01\x00\xea\x00\xfd\xff\x00\x00\x09\x00\x05\x00\x00\x00\x12\x02\x00\x00\x01\x04\x01\x80\x00\x14\x00\x00\xa5\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x10\x08\x00\x06\x00\xff\xff\xff\x7f"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_EOR|MSG_NOSIGNAL|MSG_BATCH [pid 5654] <... socketpair resumed>, [4, 5]) = 0 [pid 5651] ioctl(5, SIOCGIFINDEX, {ifr_name="lo" [pid 5654] ioctl(5, SIOCGIFINDEX, {ifr_name="lo" [pid 5651] <... ioctl resumed>, ifr_ifindex=1}) = 0 [pid 5654] <... ioctl resumed>, ifr_ifindex=1}) = 0 [ 149.591073][ T5647] sch_tbf: burst 19872 is lower than device lo mtu (65550) ! [ 149.602176][ T5649] sch_tbf: burst 19872 is lower than device lo mtu (65550) ! [pid 5651] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_MULTI|NLM_F_ACK|NLM_F_ECHO|0xd00, nlmsg_seq=7388461, nlmsg_pid=0}, "\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\x0a\x00\xff\xff\xff\xff\x00\x00\x03\x00\x08\x00\x01\x00\x74\x62\x66\x00\x34\x00\x02\x00\x28\x00\x01\x00\xea\x00\xfd\xff\x00\x00\x09\x00\x05\x00\x00\x00\x12\x02\x00\x00\x01\x04\x01\x80\x00\x14\x00\x00\xa5\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x10\x08\x00\x06\x00\xff\xff\xff\x7f"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_EOR|MSG_NOSIGNAL|MSG_BATCH [pid 5654] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_MULTI|NLM_F_ACK|NLM_F_ECHO|0xd00, nlmsg_seq=7388461, nlmsg_pid=0}, "\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\x0a\x00\xff\xff\xff\xff\x00\x00\x03\x00\x08\x00\x01\x00\x74\x62\x66\x00\x34\x00\x02\x00\x28\x00\x01\x00\xea\x00\xfd\xff\x00\x00\x09\x00\x05\x00\x00\x00\x12\x02\x00\x00\x01\x04\x01\x80\x00\x14\x00\x00\xa5\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x10\x08\x00\x06\x00\xff\xff\xff\x7f"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_EOR|MSG_NOSIGNAL|MSG_BATCH [pid 5652] <... sendmsg resumed>) = 96 [pid 5651] <... sendmsg resumed>) = 96 [pid 5652] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 6 [pid 5651] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5652] sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388456, nlmsg_pid=635427839}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH}, MSG_PROBE|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL|MSG_ZEROCOPY|MSG_FASTOPEN [pid 5651] <... socket resumed>) = 6 [pid 5651] sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388456, nlmsg_pid=635427839}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH}, MSG_PROBE|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL|MSG_ZEROCOPY|MSG_FASTOPEN [pid 5654] <... sendmsg resumed>) = 96 [pid 5654] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 6 [ 149.649895][ T5652] sch_tbf: burst 19872 is lower than device lo mtu (65550) ! [ 149.663932][ T5651] sch_tbf: burst 19872 is lower than device lo mtu (65550) ! [ 149.677131][ T5654] sch_tbf: burst 19872 is lower than device lo mtu (65550) ! [pid 5654] sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388456, nlmsg_pid=635427839}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH}, MSG_PROBE|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL|MSG_ZEROCOPY|MSG_FASTOPEN [pid 5645] kill(-5647, SIGKILL) = 0 [pid 5645] kill(5647, SIGKILL [pid 5647] <... sendmsg resumed>) = ? [pid 5645] <... kill resumed>) = 0 [pid 5646] kill(-5649, SIGKILL) = 0 [pid 5647] +++ killed by SIGKILL +++ [pid 5646] kill(5649, SIGKILL) = 0 [pid 5645] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5647, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5645] restart_syscall(<... resuming interrupted kill ...>) = 0 [pid 5645] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5645] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5660 attached [pid 5660] set_robust_list(0x55558377c6e0, 24 [pid 5645] <... clone resumed>, child_tidptr=0x55558377c6d0) = 5660 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5645] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5660] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5660] setpgid(0, 0) = 0 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5660] write(3, "1000", 4) = 4 [pid 5660] close(3) = 0 [pid 5650] kill(-5652, SIGKILL) = 0 executing program [pid 5660] write(1, "executing program\n", 18) = 18 [pid 5660] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5650] kill(5652, SIGKILL) = 0 [pid 5660] <... socket resumed>) = 3 [pid 5660] socketpair(AF_UNIX, SOCK_SEQPACKET, 0, [4, 5]) = 0 [pid 5660] ioctl(5, SIOCGIFINDEX, {ifr_name="lo", ifr_ifindex=1}) = 0 [pid 5660] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=96, nlmsg_type=0x24 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_MULTI|NLM_F_ACK|NLM_F_ECHO|0xd00, nlmsg_seq=7388461, nlmsg_pid=0}, "\x60\x00\x00\x00\x01\x00\x00\x00\x00\x00\x0a\x00\xff\xff\xff\xff\x00\x00\x03\x00\x08\x00\x01\x00\x74\x62\x66\x00\x34\x00\x02\x00\x28\x00\x01\x00\xea\x00\xfd\xff\x00\x00\x09\x00\x05\x00\x00\x00\x12\x02\x00\x00\x01\x04\x01\x80\x00\x14\x00\x00\xa5\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x10\x08\x00\x06\x00\xff\xff\xff\x7f"], iov_len=96}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_EOR|MSG_NOSIGNAL|MSG_BATCH [pid 5648] kill(-5651, SIGKILL) = 0 [pid 5648] kill(5651, SIGKILL [pid 5660] <... sendmsg resumed>) = 96 [pid 5648] <... kill resumed>) = 0 [pid 5660] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 6 [pid 5660] sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388456, nlmsg_pid=635427839}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_BATCH}, MSG_PROBE|MSG_WAITALL|MSG_CONFIRM|MSG_NOSIGNAL|MSG_ZEROCOPY|MSG_FASTOPEN [pid 5653] kill(-5654, SIGKILL) = 0 [pid 5653] kill(5654, SIGKILL) = 0 [ 154.603944][ T5660] sch_tbf: burst 19872 is lower than device lo mtu (65550) ! [pid 5646] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5646] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5646] getdents64(3, 0x55558377d7a0 /* 2 entries */, 32768) = 48 [pid 5646] getdents64(3, 0x55558377d7a0 /* 0 entries */, 32768) = 0 [pid 5646] close(3) = 0 [pid 5653] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5653] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5653] getdents64(3 [pid 5650] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5653] <... getdents64 resumed>, 0x55558377d7a0 /* 2 entries */, 32768) = 48 [pid 5650] <... openat resumed>) = 3 [pid 5653] getdents64(3 [pid 5650] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5653] <... getdents64 resumed>, 0x55558377d7a0 /* 0 entries */, 32768) = 0 [pid 5650] getdents64(3 [pid 5653] close(3 [pid 5650] <... getdents64 resumed>, 0x55558377d7a0 /* 2 entries */, 32768) = 48 [pid 5653] <... close resumed>) = 0 [pid 5650] getdents64(3, 0x55558377d7a0 /* 0 entries */, 32768) = 0 [pid 5650] 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, 0x55558377d7a0 /* 2 entries */, 32768) = 48 [pid 5648] getdents64(3, 0x55558377d7a0 /* 0 entries */, 32768) = 0 [pid 5648] close(3) = 0 [pid 5645] kill(-5660, SIGKILL) = 0 [pid 5645] kill(5660, 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, 0x55558377d7a0 /* 2 entries */, 32768) = 48 [pid 5645] getdents64(3, 0x55558377d7a0 /* 0 entries */, 32768) = 0 [pid 5645] close(3) = 0 [ 317.068607][ T1306] aoe: packet could not be sent on lo. consider increasing tx_queue_len [ 429.707622][ T30] INFO: task syz-executor252:5651 blocked for more than 143 seconds. [ 429.715875][ T30] Not tainted syzkaller #0 [ 429.720851][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.729645][ T30] task:syz-executor252 state:D stack:26120 pid:5651 tgid:5651 ppid:5648 task_flags:0x400140 flags:0x00080002 [ 429.741655][ T30] Call Trace: [ 429.744933][ T30] [ 429.747889][ T30] __schedule+0x17d9/0x56c0 [ 429.752418][ T30] ? __lock_acquire+0x683/0x2cf0 [ 429.757387][ T30] ? __lock_acquire+0x683/0x2cf0 [ 429.762368][ T30] ? __pfx___schedule+0x10/0x10 [ 429.767210][ T30] ? schedule+0x90/0x2b0 [ 429.771493][ T30] schedule+0x164/0x2b0 [ 429.775647][ T30] schedule_preempt_disabled+0x13/0x30 [ 429.781128][ T30] __mutex_lock+0x7bf/0x1550 [ 429.785719][ T30] ? __mutex_lock+0x5d4/0x1550 [ 429.790552][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 429.796654][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 429.801740][ T30] ? __asan_memset+0x22/0x50 [ 429.806376][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 429.811995][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 429.817754][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 429.823475][ T30] ? rcu_is_watching+0x15/0xb0 [ 429.828263][ T30] ? trace_kmalloc+0x2a/0xf0 [ 429.832877][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 429.839110][ T30] ? __nla_parse+0x40/0x60 [ 429.843556][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 429.849926][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 429.856270][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 429.861896][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 429.868094][ T30] ? bpf_lsm_capable+0x9/0x20 [ 429.872777][ T30] ? security_capable+0x7e/0x2c0 [ 429.877748][ T30] genl_rcv_msg+0x614/0x7a0 [ 429.882260][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 429.887268][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 429.893480][ T30] netlink_rcv_skb+0x226/0x4a0 [ 429.898297][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 429.903308][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 429.908621][ T30] ? down_read+0x2be/0x330 [ 429.913063][ T30] genl_rcv+0x28/0x40 [ 429.917036][ T30] netlink_unicast+0x7bb/0x940 [ 429.921831][ T30] netlink_sendmsg+0x813/0xb40 [ 429.926626][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 429.931936][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 429.936872][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 429.942209][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 429.947249][ T30] ____sys_sendmsg+0x54e/0x850 [ 429.952056][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 429.957380][ T30] ? import_iovec+0x73/0xa0 [ 429.961891][ T30] ___sys_sendmsg+0x2a5/0x360 [ 429.966554][ T30] ? __lock_acquire+0x683/0x2cf0 [ 429.971530][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 429.976770][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 429.982059][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 429.986999][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 429.992234][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 429.997817][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 430.003150][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.009250][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.015317][ T30] do_syscall_64+0x174/0x580 [ 430.019930][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.025995][ T30] ? clear_bhb_loop+0x70/0xc0 [ 430.030733][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.036626][ T30] RIP: 0033:0x7f1e8855e7f9 [ 430.041082][ T30] RSP: 002b:00007fffd15b1368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.049525][ T30] RAX: ffffffffffffffda RBX: 0000200000009680 RCX: 00007f1e8855e7f9 [ 430.057549][ T30] RDX: 0000000024004910 RSI: 0000200000000000 RDI: 0000000000000006 [ 430.065518][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.073515][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f1e885f6200 [ 430.081509][ T30] R13: 0000000000000002 R14: 00007fffd15b1390 R15: 00007fffd15b1380 [ 430.089506][ T30] [ 430.092525][ T30] INFO: task syz-executor252:5652 blocked for more than 143 seconds. [ 430.100631][ T30] Not tainted syzkaller #0 [ 430.105560][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.114259][ T30] task:syz-executor252 state:D stack:25880 pid:5652 tgid:5652 ppid:5650 task_flags:0x400140 flags:0x00080002 [ 430.126219][ T30] Call Trace: [ 430.129532][ T30] [ 430.132473][ T30] __schedule+0x17d9/0x56c0 [ 430.136983][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.141975][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.146920][ T30] ? __pfx___schedule+0x10/0x10 [ 430.151798][ T30] ? schedule+0x90/0x2b0 [ 430.156041][ T30] schedule+0x164/0x2b0 [ 430.160232][ T30] schedule_preempt_disabled+0x13/0x30 [ 430.165691][ T30] __mutex_lock+0x7bf/0x1550 [ 430.170337][ T30] ? __mutex_lock+0x5d4/0x1550 [ 430.175100][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.181034][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 430.186054][ T30] ? __asan_memset+0x22/0x50 [ 430.190662][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 430.196231][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.201993][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.207778][ T30] ? rcu_is_watching+0x15/0xb0 [ 430.212537][ T30] ? trace_kmalloc+0x2a/0xf0 [ 430.217112][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.223324][ T30] ? __nla_parse+0x40/0x60 [ 430.227804][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.234120][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.240528][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 430.246091][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.252213][ T30] ? bpf_lsm_capable+0x9/0x20 [ 430.256902][ T30] ? security_capable+0x7e/0x2c0 [ 430.261919][ T30] genl_rcv_msg+0x614/0x7a0 [ 430.266515][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.271586][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.277797][ T30] netlink_rcv_skb+0x226/0x4a0 [ 430.282550][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.287592][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.292884][ T30] ? down_read+0x2be/0x330 [ 430.297292][ T30] genl_rcv+0x28/0x40 [ 430.301320][ T30] netlink_unicast+0x7bb/0x940 [ 430.306070][ T30] netlink_sendmsg+0x813/0xb40 [ 430.310863][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.316151][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 430.321202][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 430.326140][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.331448][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 430.336474][ T30] ____sys_sendmsg+0x54e/0x850 [ 430.341265][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.346566][ T30] ? import_iovec+0x73/0xa0 [ 430.351097][ T30] ___sys_sendmsg+0x2a5/0x360 [ 430.355774][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.360767][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.365966][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 430.371241][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 430.376192][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 430.381452][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.386929][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 430.392286][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.398392][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.404462][ T30] do_syscall_64+0x174/0x580 [ 430.409081][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.415165][ T30] ? clear_bhb_loop+0x70/0xc0 [ 430.419872][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.425762][ T30] RIP: 0033:0x7f1e8855e7f9 [ 430.430196][ T30] RSP: 002b:00007fffd15b1368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.438816][ T30] RAX: ffffffffffffffda RBX: 0000200000009680 RCX: 00007f1e8855e7f9 [ 430.446786][ T30] RDX: 0000000024004910 RSI: 0000200000000000 RDI: 0000000000000006 [ 430.454807][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.462806][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f1e885f6200 [ 430.470797][ T30] R13: 0000000000000002 R14: 00007fffd15b1390 R15: 00007fffd15b1380 [ 430.478800][ T30] [ 430.481810][ T30] INFO: task syz-executor252:5654 blocked for more than 144 seconds. [ 430.489931][ T30] Not tainted syzkaller #0 [ 430.494867][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.503572][ T30] task:syz-executor252 state:D stack:26120 pid:5654 tgid:5654 ppid:5653 task_flags:0x400140 flags:0x00080002 [ 430.515618][ T30] Call Trace: [ 430.518953][ T30] [ 430.521888][ T30] __schedule+0x17d9/0x56c0 [ 430.526388][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.531350][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.536298][ T30] ? __pfx___schedule+0x10/0x10 [ 430.541185][ T30] ? schedule+0x90/0x2b0 [ 430.545427][ T30] schedule+0x164/0x2b0 [ 430.549603][ T30] schedule_preempt_disabled+0x13/0x30 [ 430.555100][ T30] __mutex_lock+0x7bf/0x1550 [ 430.559720][ T30] ? __mutex_lock+0x5d4/0x1550 [ 430.564495][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.570443][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 430.575561][ T30] ? __asan_memset+0x22/0x50 [ 430.580185][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 430.585828][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.591578][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.597310][ T30] ? rcu_is_watching+0x15/0xb0 [ 430.602121][ T30] ? trace_kmalloc+0x2a/0xf0 [ 430.606693][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.613051][ T30] ? __nla_parse+0x40/0x60 [ 430.617557][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.623880][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.630268][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 430.635831][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.641957][ T30] ? bpf_lsm_capable+0x9/0x20 [ 430.646642][ T30] ? security_capable+0x7e/0x2c0 [ 430.651647][ T30] genl_rcv_msg+0x614/0x7a0 [ 430.656165][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.661231][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.667438][ T30] netlink_rcv_skb+0x226/0x4a0 [ 430.672193][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.677198][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.682862][ T30] ? down_read+0x2be/0x330 [ 430.687280][ T30] genl_rcv+0x28/0x40 [ 430.691295][ T30] netlink_unicast+0x7bb/0x940 [ 430.696074][ T30] netlink_sendmsg+0x813/0xb40 [ 430.700878][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.706163][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 430.711154][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.716546][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 430.721618][ T30] ____sys_sendmsg+0x54e/0x850 [ 430.726387][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.731716][ T30] ? import_iovec+0x73/0xa0 [ 430.736243][ T30] ___sys_sendmsg+0x2a5/0x360 [ 430.740955][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.745898][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.751130][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 430.756354][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 430.761336][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 430.766541][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.772072][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 430.777404][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.783475][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.789593][ T30] do_syscall_64+0x174/0x580 [ 430.794371][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.800505][ T30] ? clear_bhb_loop+0x70/0xc0 [ 430.805183][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.811098][ T30] RIP: 0033:0x7f1e8855e7f9 [ 430.815512][ T30] RSP: 002b:00007fffd15b1368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.823955][ T30] RAX: ffffffffffffffda RBX: 0000200000009680 RCX: 00007f1e8855e7f9 [ 430.832037][ T30] RDX: 0000000024004910 RSI: 0000200000000000 RDI: 0000000000000006 [ 430.840042][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 430.848038][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f1e885f6200 [ 430.855992][ T30] R13: 0000000000000002 R14: 00007fffd15b1390 R15: 00007fffd15b1380 [ 430.863992][ T30] [ 430.867016][ T30] INFO: task syz-executor252:5660 blocked for more than 144 seconds. [ 430.875118][ T30] Not tainted syzkaller #0 [ 430.880071][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.888750][ T30] task:syz-executor252 state:D stack:26120 pid:5660 tgid:5660 ppid:5645 task_flags:0x400140 flags:0x00080002 [ 430.900693][ T30] Call Trace: [ 430.903955][ T30] [ 430.906942][ T30] __schedule+0x17d9/0x56c0 [ 430.911608][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.916578][ T30] ? __lock_acquire+0x683/0x2cf0 [ 430.921573][ T30] ? __pfx___schedule+0x10/0x10 [ 430.926500][ T30] ? schedule+0x90/0x2b0 [ 430.930816][ T30] schedule+0x164/0x2b0 [ 430.934974][ T30] schedule_preempt_disabled+0x13/0x30 [ 430.940482][ T30] __mutex_lock+0x7bf/0x1550 [ 430.945073][ T30] ? __mutex_lock+0x5d4/0x1550 [ 430.949861][ T30] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.955780][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 430.960846][ T30] ? __asan_memset+0x22/0x50 [ 430.965437][ T30] ? __nla_validate_parse+0x2429/0x2d50 [ 430.971016][ T30] nfsd_nl_listener_set_doit+0x135/0x1750 [ 430.976738][ T30] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.982490][ T30] ? rcu_is_watching+0x15/0xb0 [ 430.987255][ T30] ? trace_kmalloc+0x2a/0xf0 [ 430.991867][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.998060][ T30] ? __nla_parse+0x40/0x60 [ 431.002466][ T30] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 431.008820][ T30] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 431.015152][ T30] genl_family_rcv_msg_doit+0x233/0x340 [ 431.020789][ T30] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 431.026893][ T30] ? bpf_lsm_capable+0x9/0x20 [ 431.031619][ T30] ? security_capable+0x7e/0x2c0 [ 431.036583][ T30] genl_rcv_msg+0x614/0x7a0 [ 431.041135][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 431.046172][ T30] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 431.052377][ T30] netlink_rcv_skb+0x226/0x4a0 [ 431.057143][ T30] ? __pfx_genl_rcv_msg+0x10/0x10 [ 431.062218][ T30] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 431.067537][ T30] ? down_read+0x2be/0x330 [ 431.071942][ T30] genl_rcv+0x28/0x40 [ 431.075909][ T30] netlink_unicast+0x7bb/0x940 [ 431.080702][ T30] netlink_sendmsg+0x813/0xb40 [ 431.085472][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 431.090775][ T30] ? do_raw_spin_lock+0x12b/0x2f0 [ 431.095800][ T30] ? aa_sock_msg_perm+0xf1/0x1b0 [ 431.100758][ T30] ? __pfx_netlink_sendmsg+0x10/0x10 [ 431.106068][ T30] sock_sendmsg_nosec+0x13a/0x180 [ 431.111121][ T30] ____sys_sendmsg+0x54e/0x850 [ 431.115890][ T30] ? __pfx_____sys_sendmsg+0x10/0x10 [ 431.121229][ T30] ? import_iovec+0x73/0xa0 [ 431.125749][ T30] ___sys_sendmsg+0x2a5/0x360 [ 431.130444][ T30] ? __lock_acquire+0x683/0x2cf0 [ 431.135384][ T30] ? __pfx____sys_sendmsg+0x10/0x10 [ 431.140599][ T30] ? lockdep_hardirqs_on+0x7a/0x110 [ 431.145817][ T30] __x64_sys_sendmsg+0x1b1/0x290 [ 431.150774][ T30] ? _raw_spin_unlock_irq+0x2e/0x50 [ 431.155991][ T30] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 431.161492][ T30] ? do_user_addr_fault+0xc4a/0x1340 [ 431.166779][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.172888][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.178994][ T30] do_syscall_64+0x174/0x580 [ 431.183587][ T30] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.189699][ T30] ? clear_bhb_loop+0x70/0xc0 [ 431.194727][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 431.200662][ T30] RIP: 0033:0x7f1e8855e7f9 [ 431.205074][ T30] RSP: 002b:00007fffd15b1368 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 431.213507][ T30] RAX: ffffffffffffffda RBX: 0000200000009680 RCX: 00007f1e8855e7f9 [ 431.221500][ T30] RDX: 0000000024004910 RSI: 0000200000000000 RDI: 0000000000000006 [ 431.229526][ T30] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 431.237531][ T30] R10: 0000000000000009 R11: 0000000000000246 R12: 000000000002480f [ 431.245486][ T30] R13: 00007fffd15b137c R14: 00007fffd15b1390 R15: 00007fffd15b1380 [ 431.253492][ T30] [ 431.256591][ T30] [ 431.256591][ T30] Showing all locks held in the system: [ 431.264422][ T30] 1 lock held by khungtaskd/30: [ 431.269313][ T30] #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 431.279246][ T30] 2 locks held by getty/5363: [ 431.283915][ T30] #0: ffff888035f300a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 431.293693][ T30] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 431.303834][ T30] 2 locks held by syz-executor252/5649: [ 431.309425][ T30] #0: ffffffff90098f28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.317656][ T30] #1: ffffffff8ee8dd80 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.327897][ T30] 2 locks held by syz-executor252/5651: [ 431.333465][ T30] #0: ffffffff90098f28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.341701][ T30] #1: ffffffff8ee8dd80 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.351932][ T30] 2 locks held by syz-executor252/5652: [ 431.357495][ T30] #0: ffffffff90098f28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.365693][ T30] #1: ffffffff8ee8dd80 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.375919][ T30] 2 locks held by syz-executor252/5654: [ 431.381483][ T30] #0: ffffffff90098f28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.389688][ T30] #1: ffffffff8ee8dd80 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.399927][ T30] 2 locks held by syz-executor252/5660: [ 431.405494][ T30] #0: ffffffff90098f28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 431.413748][ T30] #1: ffffffff8ee8dd80 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 431.423989][ T30] [ 431.426465][ T30] ============================================= [ 431.426465][ T30] [ 431.435005][ T30] NMI backtrace for cpu 0 [ 431.435028][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 431.435044][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 431.435051][ T30] Call Trace: [ 431.435056][ T30] [ 431.435062][ T30] dump_stack_lvl+0xe8/0x150 [ 431.435086][ T30] nmi_cpu_backtrace+0x274/0x2d0 [ 431.435108][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 431.435129][ T30] nmi_trigger_cpumask_backtrace+0x17a/0x380 [ 431.435151][ T30] sys_info+0x135/0x170 [ 431.435169][ T30] watchdog+0xfd7/0x1030 [ 431.435192][ T30] ? watchdog+0x1c7/0x1030 [ 431.435211][ T30] kthread+0x388/0x470 [ 431.435230][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.435244][ T30] ? __pfx_kthread+0x10/0x10 [ 431.435265][ T30] ret_from_fork+0x514/0xb70 [ 431.435288][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 431.435308][ T30] ? __switch_to+0xc89/0x1420 [ 431.435328][ T30] ? __pfx_kthread+0x10/0x10 [ 431.435348][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.435382][ T30] [ 431.435388][ T30] Sending NMI from CPU 0 to CPUs 1: [ 431.544568][ C1] NMI backtrace for cpu 1 [ 431.544584][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) [ 431.544602][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 431.544611][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 431.544634][ C1] Code: 3b 7d 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 b3 ee 16 00 fb f4 4c 07 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 431.544647][ C1] RSP: 0018:ffffc90000197e40 EFLAGS: 00000246 [ 431.544661][ C1] RAX: 000000000007d553 RBX: ffffffff819b433c RCX: 0000000080000001 [ 431.544672][ C1] RDX: 0000000000000001 RSI: ffffffff8e22ccb4 RDI: ffffffff8c4bbf80 [ 431.544683][ C1] RBP: ffffc90000197f10 R08: ffff8880b87338db R09: 1ffff110170e671b [ 431.544694][ C1] R10: dffffc0000000000 R11: ffffed10170e671c R12: 0000000000000000 [ 431.544705][ C1] R13: 1ffff11003c54000 R14: 1ffff92000032fd0 R15: dffffc0000000000 [ 431.544717][ C1] FS: 0000000000000000(0000) GS:ffff888125049000(0000) knlGS:0000000000000000 [ 431.544729][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 431.544740][ C1] CR2: 000055601c7ad168 CR3: 000000000e946000 CR4: 00000000003526f0 [ 431.544754][ C1] Call Trace: [ 431.544761][ C1] [ 431.544767][ C1] default_idle+0x9/0x20 [ 431.544786][ C1] default_idle_call+0x72/0xb0 [ 431.544806][ C1] do_idle+0x1cc/0x540 [ 431.544827][ C1] ? __pfx_do_idle+0x10/0x10 [ 431.544850][ C1] cpu_startup_entry+0x43/0x60 [ 431.544869][ C1] start_secondary+0x101/0x110 [ 431.544889][ C1] common_startup_64+0x13e/0x157 [ 431.544913][ C1] [ 431.704775][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 431.711627][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 431.720720][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 431.731191][ T30] Call Trace: [ 431.734454][ T30] [ 431.737368][ T30] vpanic+0x56c/0xa60 [ 431.741340][ T30] ? __pfx___schedule+0x10/0x10 [ 431.746179][ T30] ? __pfx_vpanic+0x10/0x10 [ 431.750669][ T30] ? nmi_trigger_cpumask_backtrace+0x207/0x380 [ 431.756815][ T30] panic+0xc5/0xd0 [ 431.760527][ T30] ? __pfx_panic+0x10/0x10 [ 431.764926][ T30] ? preempt_schedule_common+0x82/0xd0 [ 431.770371][ T30] ? preempt_schedule_thunk+0x16/0x40 [ 431.775728][ T30] ? nmi_trigger_cpumask_backtrace+0x314/0x380 [ 431.781870][ T30] ? nmi_trigger_cpumask_backtrace+0x319/0x380 [ 431.788013][ T30] watchdog+0x1030/0x1030 [ 431.792333][ T30] ? watchdog+0x1c7/0x1030 [ 431.796739][ T30] kthread+0x388/0x470 [ 431.800792][ T30] ? __pfx_watchdog+0x10/0x10 [ 431.805451][ T30] ? __pfx_kthread+0x10/0x10 [ 431.810027][ T30] ret_from_fork+0x514/0xb70 [ 431.814609][ T30] ? __pfx_ret_from_fork+0x10/0x10 [ 431.819711][ T30] ? __switch_to+0xc89/0x1420 [ 431.824375][ T30] ? __pfx_kthread+0x10/0x10 [ 431.828950][ T30] ret_from_fork_asm+0x1a/0x30 [ 431.833713][ T30] [ 431.837195][ T30] Kernel Offset: disabled [ 431.841536][ T30] Rebooting in 86400 seconds..