ci-upstream-net-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-kasan-gce/syz-executor2846855825 <...> Warning: Permanently added '10.128.0.106' (ED25519) to the list of known hosts. execve("ci-upstream-net-kasan-gce/syz-executor2846855825", ["ci-upstream-net-kasan-gce/syz-executor2846855825"], 0x7ffc94f71de0 /* 10 vars */) = 0 brk(NULL) = 0x555577789000 brk(0x555577789d80) = 0x555577789d80 arch_prctl(ARCH_SET_FS, 0x555577789400) = 0 set_tid_address(0x5555777896d0) = 5655 set_robust_list(0x5555777896e0, 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-executor2846855825", 4096) = 54 getrandom("\xfb\x0e\xf8\x28\x05\x7a\x50\x6b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555577789d80 brk(0x5555777aad80) = 0x5555777aad80 brk(0x5555777ab000) = 0x5555777ab000 mprotect(0x7fa72b925000, 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 5656 attached , child_tidptr=0x5555777896d0) = 5656 [pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] set_robust_list(0x5555777896e0, 24 [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5656] <... set_robust_list resumed>) = 0 [pid 5655] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5656] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-kasan-gce/strace-static-x86_64: Process 5657 attached [pid 5655] <... clone resumed>, child_tidptr=0x5555777896d0) = 5657 [pid 5657] set_robust_list(0x5555777896e0, 24ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5658 attached [pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5657] <... set_robust_list resumed>) = 0 [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5658] set_robust_list(0x5555777896e0, 24 [pid 5656] <... clone resumed>, child_tidptr=0x5555777896d0) = 5658 [pid 5655] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5658] <... set_robust_list resumed>) = 0 [pid 5657] rt_sigprocmask(SIG_SETMASK, [] [pid 5656] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5656] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5659 attached [pid 5658] setpgid(0, 0 [pid 5657] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5659] set_robust_list(0x5555777896e0, 24 [pid 5658] <... setpgid resumed>) = 0 [pid 5657] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5657] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5659] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] <... clone resumed>, child_tidptr=0x5555777896d0) = 5659 [pid 5655] rt_sigprocmask(SIG_SETMASK, []ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5660 attached [pid 5658] <... openat resumed>) = 3 [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] write(3, "1000", 4) = 4 [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5660] set_robust_list(0x5555777896e0, 24 [pid 5659] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5657] <... clone resumed>, child_tidptr=0x5555777896d0) = 5660 [pid 5655] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5658] close(3 [pid 5657] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5660] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5658] <... close resumed>) = 0 [pid 5657] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5661 attached ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5662 attached [pid 5655] <... clone resumed>, child_tidptr=0x5555777896d0) = 5661 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5658] write(1, "executing program\n", 18 [pid 5655] rt_sigprocmask(SIG_SETMASK, [] [pid 5661] set_robust_list(0x5555777896e0, 24 [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] <... prctl resumed>) = 0 [pid 5658] <... write resumed>) = 18 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5659] <... clone resumed>, child_tidptr=0x5555777896d0) = 5662 [pid 5660] setpgid(0, 0 [pid 5658] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[] executing program [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] <... setpgid resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] <... socket resumed>) = 3 [pid 5655] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] 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=524285, nlmsg_pid=4096}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, MSG_PROBE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5655] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5662] set_robust_list(0x5555777896e0, 24 [pid 5661] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5660] <... openat resumed>) = 3 [pid 5662] <... set_robust_list resumed>) = 0 [pid 5662] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5662] setpgid(0, 0) = 0 [pid 5661] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5660] write(3, "1000", 4 [pid 5661] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5660] <... write resumed>) = 4 executing program [pid 5662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECci-upstream-net-kasan-gce/strace-static-x86_64: Process 5664 attached ) = 3 [pid 5660] close(3ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5663 attached ) = 0 [pid 5655] <... clone resumed>, child_tidptr=0x5555777896d0) = 5663 [pid 5661] <... clone resumed>, child_tidptr=0x5555777896d0) = 5664 [pid 5660] write(1, "executing program\n", 18 [pid 5655] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] <... write resumed>) = 18 [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5664] set_robust_list(0x5555777896e0, 24 [pid 5663] set_robust_list(0x5555777896e0, 24 [pid 5662] write(3, "1000", 4 [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5664] <... set_robust_list resumed>) = 0 [pid 5663] <... set_robust_list resumed>) = 0 [pid 5662] <... write resumed>) = 4 [pid 5664] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] close(3 [pid 5664] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5662] <... close resumed>) = 0 [pid 5664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5663] rt_sigprocmask(SIG_SETMASK, [] [pid 5662] write(1, "executing program\n", 18 [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] <... socket resumed>) = 3 executing program [pid 5664] <... prctl resumed>) = 0 [pid 5663] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5662] <... write resumed>) = 18 [pid 5660] 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=524285, nlmsg_pid=4096}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, MSG_PROBE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5664] setpgid(0, 0 [pid 5663] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5662] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5664] <... setpgid resumed>) = 0 [pid 5663] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5662] <... socket resumed>) = 3 [pid 5664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5663] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5662] 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=524285, nlmsg_pid=4096}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, MSG_PROBE|MSG_EOR|MSG_MORE|MSG_ZEROCOPYci-upstream-net-kasan-gce/strace-static-x86_64: Process 5665 attached [pid 5664] <... openat resumed>) = 3 [pid 5665] set_robust_list(0x5555777896e0, 24 [pid 5664] write(3, "1000", 4 [pid 5665] <... set_robust_list resumed>) = 0 [pid 5664] <... write resumed>) = 4 [pid 5665] rt_sigprocmask(SIG_SETMASK, [] [pid 5664] close(3) = 0 executing program [pid 5664] write(1, "executing program\n", 18 [pid 5665] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5664] <... write resumed>) = 18 [pid 5664] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5664] <... socket resumed>) = 3 [pid 5663] <... clone resumed>, child_tidptr=0x5555777896d0) = 5665 [pid 5665] <... prctl resumed>) = 0 [pid 5664] 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=524285, nlmsg_pid=4096}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, MSG_PROBE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5665] setpgid(0, 0 [pid 5663] rt_sigprocmask(SIG_SETMASK, [] [pid 5665] <... setpgid resumed>) = 0 [pid 5665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5663] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5665] write(3, "1000", 4) = 4 [pid 5665] close(3) = 0 [pid 5665] write(1, "executing program\n", 18) = 18 executing program [pid 5665] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5665] 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=524285, nlmsg_pid=4096}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, MSG_PROBE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5658] <... sendmsg resumed>) = 20 [pid 5658] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 [pid 5658] ioctl(4, SIOCSIFFLAGS, {ifr_name="lo", ifr_flags=0}) = 0 [pid 5658] exit_group(0) = ? [pid 5658] +++ exited with 0 +++ [pid 5656] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5658, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5656] restart_syscall(<... resuming interrupted rt_sigprocmask ...>) = 0 [pid 5656] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5656] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-kasan-gce/strace-static-x86_64: Process 5669 attached , child_tidptr=0x5555777896d0) = 5669 [pid 5669] set_robust_list(0x5555777896e0, 24 [pid 5656] rt_sigprocmask(SIG_SETMASK, [] [pid 5669] <... set_robust_list resumed>) = 0 [pid 5656] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5669] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5669] setpgid(0, 0) = 0 [pid 5669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5669] write(3, "1000", 4) = 4 [pid 5669] close(3) = 0 [pid 5669] write(1, "executing program\n", 18) = 18 executing program [pid 5669] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5669] 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=524285, nlmsg_pid=4096}, "\x06\x00\x00\x00"], iov_len=20}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_OOB|MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, MSG_PROBE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5657] kill(-5660, SIGKILL) = 0 [pid 5657] kill(5660, SIGKILL) = 0 [pid 5659] kill(-5662, SIGKILL) = 0 [pid 5659] kill(5662, SIGKILL) = 0 [pid 5661] kill(-5664, SIGKILL) = 0 [pid 5661] kill(5664, SIGKILL) = 0 [pid 5663] kill(-5665, SIGKILL) = 0 [pid 5663] kill(5665, SIGKILL) = 0 [pid 5656] kill(-5669, SIGKILL) = 0 [pid 5656] kill(5669, SIGKILL) = 0 [pid 5659] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5659] fstat(3 [pid 5661] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5659] <... fstat resumed>, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5657] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5661] <... openat resumed>) = 3 [pid 5659] getdents64(3 [pid 5661] fstat(3 [pid 5657] <... openat resumed>) = 3 [pid 5661] <... fstat resumed>, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5659] <... getdents64 resumed>, 0x55557778a7a0 /* 2 entries */, 32768) = 48 [pid 5657] fstat(3 [pid 5661] getdents64(3, 0x55557778a7a0 /* 2 entries */, 32768) = 48 [pid 5661] getdents64(3 [pid 5659] getdents64(3 [pid 5657] <... fstat resumed>, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5661] <... getdents64 resumed>, 0x55557778a7a0 /* 0 entries */, 32768) = 0 [pid 5659] <... getdents64 resumed>, 0x55557778a7a0 /* 0 entries */, 32768) = 0 [pid 5659] close(3 [pid 5661] close(3 [pid 5659] <... close resumed>) = 0 [pid 5657] getdents64(3 [pid 5661] <... close resumed>) = 0 [pid 5657] <... getdents64 resumed>, 0x55557778a7a0 /* 2 entries */, 32768) = 48 [pid 5657] getdents64(3, 0x55557778a7a0 /* 0 entries */, 32768) = 0 [pid 5657] close(3) = 0 [pid 5663] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5663] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5663] getdents64(3, 0x55557778a7a0 /* 2 entries */, 32768) = 48 [pid 5663] getdents64(3, 0x55557778a7a0 /* 0 entries */, 32768) = 0 [pid 5663] close(3) = 0 [pid 5656] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5656] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5656] getdents64(3, 0x55557778a7a0 /* 2 entries */, 32768) = 48 [pid 5656] getdents64(3, 0x55557778a7a0 /* 0 entries */, 32768) = 0 [pid 5656] close(3) = 0 [ 287.008530][ T31] INFO: task syz-executor284:5662 blocked for more than 143 seconds. [ 287.017247][ T31] Not tainted syzkaller #0 [ 287.022319][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.031982][ T31] task:syz-executor284 state:D stack:27480 pid:5662 tgid:5662 ppid:5659 task_flags:0x400140 flags:0x00080002 [ 287.044409][ T31] Call Trace: [ 287.047916][ T31] [ 287.050960][ T31] __schedule+0x17d9/0x56c0 [ 287.055540][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.060573][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.065764][ T31] ? __pfx___schedule+0x10/0x10 [ 287.071005][ T31] ? schedule+0x90/0x2b0 [ 287.075307][ T31] schedule+0x164/0x2b0 [ 287.079781][ T31] schedule_preempt_disabled+0x13/0x30 [ 287.085482][ T31] __mutex_lock+0x7bf/0x1550 [ 287.090364][ T31] ? __mutex_lock+0x5d4/0x1550 [ 287.095195][ T31] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 287.101386][ T31] ? __pfx___mutex_lock+0x10/0x10 [ 287.106454][ T31] ? __asan_memset+0x22/0x50 [ 287.111337][ T31] ? __nla_validate_parse+0x2429/0x2d50 [ 287.116939][ T31] nfsd_nl_listener_set_doit+0x135/0x1750 [ 287.122783][ T31] ? __pfx___nla_validate_parse+0x10/0x10 [ 287.128631][ T31] ? rcu_is_watching+0x15/0xb0 [ 287.133412][ T31] ? trace_kmalloc+0x2a/0xf0 [ 287.138114][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 287.144376][ T31] ? __nla_parse+0x40/0x60 [ 287.149046][ T31] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 287.155392][ T31] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 287.161926][ T31] genl_family_rcv_msg_doit+0x233/0x340 [ 287.167506][ T31] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 287.174015][ T31] ? bpf_lsm_capable+0x9/0x20 [ 287.178994][ T31] ? security_capable+0x7e/0x2c0 [ 287.183971][ T31] genl_rcv_msg+0x614/0x7a0 [ 287.188961][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.194026][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 287.200563][ T31] netlink_rcv_skb+0x226/0x4a0 [ 287.205466][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.210612][ T31] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 287.215964][ T31] ? down_read+0x2be/0x330 [ 287.220595][ T31] genl_rcv+0x28/0x40 [ 287.224749][ T31] netlink_unicast+0x7bb/0x940 [ 287.229616][ T31] netlink_sendmsg+0x813/0xb40 [ 287.234791][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.241359][ T31] ? do_raw_spin_lock+0x12b/0x2f0 [ 287.246836][ T31] ? aa_sock_msg_perm+0xf1/0x1b0 [ 287.252143][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.257887][ T31] sock_sendmsg_nosec+0x13a/0x180 [ 287.263042][ T31] ____sys_sendmsg+0x54e/0x850 [ 287.268104][ T31] ? __pfx_____sys_sendmsg+0x10/0x10 [ 287.273800][ T31] ? import_iovec+0x73/0xa0 [ 287.278514][ T31] ___sys_sendmsg+0x2a5/0x360 [ 287.283343][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.288490][ T31] ? __pfx____sys_sendmsg+0x10/0x10 [ 287.293898][ T31] ? lockdep_hardirqs_on+0x7a/0x110 [ 287.299216][ T31] __x64_sys_sendmsg+0x1b1/0x290 [ 287.304237][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.309610][ T31] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 287.315147][ T31] ? do_user_addr_fault+0xc4a/0x1340 [ 287.320695][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.326981][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.333364][ T31] do_syscall_64+0x174/0x580 [ 287.338103][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.344399][ T31] ? clear_bhb_loop+0x40/0x90 [ 287.349173][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.355135][ T31] RIP: 0033:0x7fa72b892639 [ 287.360021][ T31] RSP: 002b:00007ffdb7028008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 287.369005][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa72b892639 [ 287.377098][ T31] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000003 [ 287.385441][ T31] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 287.393585][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdb7028188 [ 287.401764][ T31] R13: 0000000000000002 R14: 00007ffdb7028030 R15: 00007ffdb7028020 [ 287.410037][ T31] [ 287.413207][ T31] INFO: task syz-executor284:5664 blocked for more than 143 seconds. [ 287.421457][ T31] Not tainted syzkaller #0 [ 287.426481][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.435308][ T31] task:syz-executor284 state:D stack:27480 pid:5664 tgid:5664 ppid:5661 task_flags:0x400140 flags:0x00080002 [ 287.447699][ T31] Call Trace: [ 287.451153][ T31] [ 287.454184][ T31] __schedule+0x17d9/0x56c0 [ 287.458933][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.463929][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.469061][ T31] ? __pfx___schedule+0x10/0x10 [ 287.473979][ T31] ? schedule+0x90/0x2b0 [ 287.478409][ T31] schedule+0x164/0x2b0 [ 287.482890][ T31] schedule_preempt_disabled+0x13/0x30 [ 287.488448][ T31] __mutex_lock+0x7bf/0x1550 [ 287.493186][ T31] ? __mutex_lock+0x5d4/0x1550 [ 287.498290][ T31] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 287.504320][ T31] ? __pfx___mutex_lock+0x10/0x10 [ 287.509768][ T31] ? __asan_memset+0x22/0x50 [ 287.514977][ T31] ? __nla_validate_parse+0x2429/0x2d50 [ 287.520831][ T31] nfsd_nl_listener_set_doit+0x135/0x1750 [ 287.526612][ T31] ? __pfx___nla_validate_parse+0x10/0x10 [ 287.532476][ T31] ? rcu_is_watching+0x15/0xb0 [ 287.537376][ T31] ? trace_kmalloc+0x2a/0xf0 [ 287.542091][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 287.548343][ T31] ? __nla_parse+0x40/0x60 [ 287.552855][ T31] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 287.559383][ T31] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 287.566020][ T31] genl_family_rcv_msg_doit+0x233/0x340 [ 287.571847][ T31] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 287.578019][ T31] ? bpf_lsm_capable+0x9/0x20 [ 287.582807][ T31] ? security_capable+0x7e/0x2c0 [ 287.587802][ T31] genl_rcv_msg+0x614/0x7a0 [ 287.592420][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.597573][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 287.604035][ T31] netlink_rcv_skb+0x226/0x4a0 [ 287.608988][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.614222][ T31] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 287.619750][ T31] ? down_read+0x2be/0x330 [ 287.624495][ T31] genl_rcv+0x28/0x40 [ 287.629315][ T31] netlink_unicast+0x7bb/0x940 [ 287.634310][ T31] netlink_sendmsg+0x813/0xb40 [ 287.639273][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.644966][ T31] ? aa_sock_msg_perm+0xf1/0x1b0 [ 287.650072][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 287.655566][ T31] sock_sendmsg_nosec+0x13a/0x180 [ 287.660692][ T31] ____sys_sendmsg+0x54e/0x850 [ 287.665648][ T31] ? __pfx_____sys_sendmsg+0x10/0x10 [ 287.671030][ T31] ? import_iovec+0x73/0xa0 [ 287.675589][ T31] ___sys_sendmsg+0x2a5/0x360 [ 287.680354][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.685491][ T31] ? __pfx____sys_sendmsg+0x10/0x10 [ 287.690855][ T31] ? lockdep_hardirqs_on+0x7a/0x110 [ 287.696378][ T31] __x64_sys_sendmsg+0x1b1/0x290 [ 287.701452][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.706784][ T31] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 287.712688][ T31] ? do_user_addr_fault+0xc4a/0x1340 [ 287.718010][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.724509][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.730851][ T31] do_syscall_64+0x174/0x580 [ 287.735487][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.741843][ T31] ? clear_bhb_loop+0x40/0x90 [ 287.746705][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.752697][ T31] RIP: 0033:0x7fa72b892639 [ 287.757211][ T31] RSP: 002b:00007ffdb7028008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 287.765825][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa72b892639 [ 287.773873][ T31] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000003 [ 287.782972][ T31] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 287.791030][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdb7028188 [ 287.799248][ T31] R13: 0000000000000002 R14: 00007ffdb7028030 R15: 00007ffdb7028020 [ 287.807277][ T31] [ 287.810515][ T31] INFO: task syz-executor284:5665 blocked for more than 144 seconds. [ 287.818750][ T31] Not tainted syzkaller #0 [ 287.823941][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 287.832883][ T31] task:syz-executor284 state:D stack:27480 pid:5665 tgid:5665 ppid:5663 task_flags:0x400140 flags:0x00080002 [ 287.845220][ T31] Call Trace: [ 287.848555][ T31] [ 287.851505][ T31] __schedule+0x17d9/0x56c0 [ 287.856017][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.861034][ T31] ? __lock_acquire+0x683/0x2cf0 [ 287.866025][ T31] ? __pfx___schedule+0x10/0x10 [ 287.871039][ T31] ? schedule+0x90/0x2b0 [ 287.875414][ T31] schedule+0x164/0x2b0 [ 287.879797][ T31] schedule_preempt_disabled+0x13/0x30 [ 287.885385][ T31] __mutex_lock+0x7bf/0x1550 [ 287.890046][ T31] ? __mutex_lock+0x5d4/0x1550 [ 287.894840][ T31] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 287.901209][ T31] ? __pfx___mutex_lock+0x10/0x10 [ 287.906292][ T31] ? __asan_memset+0x22/0x50 [ 287.911099][ T31] ? __nla_validate_parse+0x2429/0x2d50 [ 287.916816][ T31] nfsd_nl_listener_set_doit+0x135/0x1750 [ 287.922759][ T31] ? __pfx___nla_validate_parse+0x10/0x10 [ 287.928780][ T31] ? rcu_is_watching+0x15/0xb0 [ 287.933566][ T31] ? trace_kmalloc+0x2a/0xf0 [ 287.938254][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 287.944807][ T31] ? __nla_parse+0x40/0x60 [ 287.949309][ T31] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 287.955778][ T31] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 287.962232][ T31] genl_family_rcv_msg_doit+0x233/0x340 [ 287.967833][ T31] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 287.974176][ T31] ? bpf_lsm_capable+0x9/0x20 [ 287.979380][ T31] ? security_capable+0x7e/0x2c0 [ 287.984373][ T31] genl_rcv_msg+0x614/0x7a0 [ 287.988964][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 287.994107][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 288.000905][ T31] netlink_rcv_skb+0x226/0x4a0 [ 288.006352][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 288.011538][ T31] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 288.016911][ T31] ? down_read+0x2be/0x330 [ 288.021515][ T31] genl_rcv+0x28/0x40 [ 288.025636][ T31] netlink_unicast+0x7bb/0x940 [ 288.030936][ T31] netlink_sendmsg+0x813/0xb40 [ 288.035797][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 288.041169][ T31] ? do_raw_spin_lock+0x12b/0x2f0 [ 288.046252][ T31] ? aa_sock_msg_perm+0xf1/0x1b0 [ 288.051266][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 288.056663][ T31] sock_sendmsg_nosec+0x13a/0x180 [ 288.061847][ T31] ____sys_sendmsg+0x54e/0x850 [ 288.066830][ T31] ? __pfx_____sys_sendmsg+0x10/0x10 [ 288.072224][ T31] ? import_iovec+0x73/0xa0 [ 288.076843][ T31] ___sys_sendmsg+0x2a5/0x360 [ 288.081715][ T31] ? __lock_acquire+0x683/0x2cf0 [ 288.086996][ T31] ? __pfx____sys_sendmsg+0x10/0x10 [ 288.092285][ T31] ? lockdep_hardirqs_on+0x7a/0x110 [ 288.097718][ T31] __x64_sys_sendmsg+0x1b1/0x290 [ 288.102792][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 288.108104][ T31] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 288.114125][ T31] ? do_user_addr_fault+0xc4a/0x1340 [ 288.119497][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.125597][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.131841][ T31] do_syscall_64+0x174/0x580 [ 288.136738][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.143268][ T31] ? clear_bhb_loop+0x40/0x90 [ 288.148082][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.154295][ T31] RIP: 0033:0x7fa72b892639 [ 288.159275][ T31] RSP: 002b:00007ffdb7028008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 288.168871][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa72b892639 [ 288.177008][ T31] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000003 [ 288.185229][ T31] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 288.193514][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdb7028188 [ 288.201840][ T31] R13: 0000000000000002 R14: 00007ffdb7028030 R15: 00007ffdb7028020 [ 288.209930][ T31] [ 288.213274][ T31] INFO: task syz-executor284:5669 blocked for more than 144 seconds. [ 288.221624][ T31] Not tainted syzkaller #0 [ 288.226856][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 288.235862][ T31] task:syz-executor284 state:D stack:26680 pid:5669 tgid:5669 ppid:5656 task_flags:0x400140 flags:0x00080002 [ 288.248205][ T31] Call Trace: [ 288.252209][ T31] [ 288.255156][ T31] __schedule+0x17d9/0x56c0 [ 288.259733][ T31] ? __lock_acquire+0x683/0x2cf0 [ 288.264773][ T31] ? __lock_acquire+0x683/0x2cf0 [ 288.270082][ T31] ? __pfx___schedule+0x10/0x10 [ 288.275198][ T31] ? schedule+0x90/0x2b0 [ 288.279630][ T31] schedule+0x164/0x2b0 [ 288.283924][ T31] schedule_preempt_disabled+0x13/0x30 [ 288.289482][ T31] __mutex_lock+0x7bf/0x1550 [ 288.294114][ T31] ? __mutex_lock+0x5d4/0x1550 [ 288.299068][ T31] ? nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.305031][ T31] ? __pfx___mutex_lock+0x10/0x10 [ 288.310163][ T31] ? __asan_memset+0x22/0x50 [ 288.314821][ T31] ? __nla_validate_parse+0x2429/0x2d50 [ 288.320753][ T31] nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.326508][ T31] ? __pfx___nla_validate_parse+0x10/0x10 [ 288.332596][ T31] ? rcu_is_watching+0x15/0xb0 [ 288.337749][ T31] ? trace_kmalloc+0x2a/0xf0 [ 288.342572][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 288.349079][ T31] ? __nla_parse+0x40/0x60 [ 288.353517][ T31] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 288.359935][ T31] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 288.366494][ T31] genl_family_rcv_msg_doit+0x233/0x340 [ 288.372353][ T31] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 288.379141][ T31] ? bpf_lsm_capable+0x9/0x20 [ 288.383962][ T31] ? security_capable+0x7e/0x2c0 [ 288.389327][ T31] genl_rcv_msg+0x614/0x7a0 [ 288.394113][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 288.399579][ T31] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 288.406687][ T31] netlink_rcv_skb+0x226/0x4a0 [ 288.412897][ T31] ? __pfx_genl_rcv_msg+0x10/0x10 [ 288.418974][ T31] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 288.424663][ T31] ? down_read+0x2be/0x330 [ 288.429492][ T31] genl_rcv+0x28/0x40 [ 288.433650][ T31] netlink_unicast+0x7bb/0x940 [ 288.438808][ T31] netlink_sendmsg+0x813/0xb40 [ 288.444012][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 288.449390][ T31] ? do_raw_spin_lock+0x12b/0x2f0 [ 288.454449][ T31] ? aa_sock_msg_perm+0xf1/0x1b0 [ 288.459853][ T31] ? __pfx_netlink_sendmsg+0x10/0x10 [ 288.465286][ T31] sock_sendmsg_nosec+0x13a/0x180 [ 288.470688][ T31] ____sys_sendmsg+0x54e/0x850 [ 288.475791][ T31] ? __pfx_____sys_sendmsg+0x10/0x10 [ 288.481298][ T31] ? import_iovec+0x73/0xa0 [ 288.485890][ T31] ___sys_sendmsg+0x2a5/0x360 [ 288.490919][ T31] ? __lock_acquire+0x683/0x2cf0 [ 288.496196][ T31] ? __pfx____sys_sendmsg+0x10/0x10 [ 288.501965][ T31] __x64_sys_sendmsg+0x1b1/0x290 [ 288.507264][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 288.512762][ T31] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 288.518679][ T31] ? do_user_addr_fault+0xc4a/0x1340 [ 288.524131][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.530396][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.536675][ T31] do_syscall_64+0x174/0x580 [ 288.541400][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.547508][ T31] ? clear_bhb_loop+0x40/0x90 [ 288.552278][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 288.558253][ T31] RIP: 0033:0x7fa72b892639 [ 288.562697][ T31] RSP: 002b:00007ffdb7028008 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 288.571337][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa72b892639 [ 288.579413][ T31] RDX: 0000000004008090 RSI: 0000200000000140 RDI: 0000000000000003 [ 288.587671][ T31] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 288.595799][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000001f718 [ 288.604056][ T31] R13: 00007ffdb702801c R14: 00007ffdb7028030 R15: 00007ffdb7028020 [ 288.612283][ T31] [ 288.615450][ T31] [ 288.615450][ T31] Showing all locks held in the system: [ 288.623346][ T31] 1 lock held by khungtaskd/31: [ 288.628356][ T31] #0: ffffffff8eb59c60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 288.638469][ T31] 3 locks held by kworker/u8:3/47: [ 288.643614][ T31] #0: ffff8880b863b160 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160 [ 288.653744][ T31] #1: ffff8880b8624440 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x57/0x7d0 [ 288.662727][ T31] #2: ffff8880b8626058 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x1a9/0xed0 [ 288.671929][ T31] 2 locks held by getty/5371: [ 288.676616][ T31] #0: ffff88803626e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 288.686672][ T31] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 288.697274][ T31] 2 locks held by syz-executor284/5660: [ 288.702960][ T31] #0: ffffffff9009ec28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 288.711275][ T31] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.721671][ T31] 2 locks held by syz-executor284/5662: [ 288.727435][ T31] #0: ffffffff9009ec28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 288.735823][ T31] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.746201][ T31] 2 locks held by syz-executor284/5664: [ 288.751947][ T31] #0: ffffffff9009ec28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 288.760492][ T31] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.770854][ T31] 2 locks held by syz-executor284/5665: [ 288.776536][ T31] #0: ffffffff9009ec28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 288.784953][ T31] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.795231][ T31] 2 locks held by syz-executor284/5669: [ 288.800871][ T31] #0: ffffffff9009ec28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 288.809254][ T31] #1: ffffffff8ee8e620 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x135/0x1750 [ 288.819962][ T31] [ 288.822309][ T31] ============================================= [ 288.822309][ T31] [ 288.830799][ T31] NMI backtrace for cpu 1 [ 288.830828][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.830846][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.830855][ T31] Call Trace: [ 288.830862][ T31] [ 288.830869][ T31] dump_stack_lvl+0xe8/0x150 [ 288.830896][ T31] nmi_cpu_backtrace+0x274/0x2d0 [ 288.830915][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 288.830943][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x380 [ 288.830963][ T31] sys_info+0x135/0x170 [ 288.830979][ T31] watchdog+0xfd7/0x1030 [ 288.831006][ T31] ? watchdog+0x1c7/0x1030 [ 288.831028][ T31] kthread+0x388/0x470 [ 288.831054][ T31] ? __pfx_watchdog+0x10/0x10 [ 288.831070][ T31] ? __pfx_kthread+0x10/0x10 [ 288.831099][ T31] ret_from_fork+0x514/0xb70 [ 288.831129][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 288.831154][ T31] ? __switch_to+0xc89/0x1420 [ 288.831181][ T31] ? __pfx_kthread+0x10/0x10 [ 288.831206][ T31] ret_from_fork_asm+0x1a/0x30 [ 288.831232][ T31] [ 288.831239][ T31] Sending NMI from CPU 1 to CPUs 0: [ 288.943046][ C0] NMI backtrace for cpu 0 [ 288.943075][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 288.943094][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.943105][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 288.943138][ C0] Code: cc 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 3e 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 [ 288.943152][ C0] RSP: 0018:ffffffff8e807de0 EFLAGS: 00000246 [ 288.943168][ C0] RAX: 00000000000db4e1 RBX: ffffffff819b533c RCX: 0000000080000001 [ 288.943181][ C0] RDX: 0000000000000001 RSI: ffffffff8e2313f0 RDI: ffffffff8c4bdd80 [ 288.943192][ C0] RBP: ffffffff8e807eb8 R08: ffff8880b86338db R09: 1ffff110170c671b [ 288.943205][ C0] R10: dffffc0000000000 R11: ffffed10170c671c R12: 0000000000000000 [ 288.943217][ C0] R13: 1ffffffff1d11de8 R14: 1ffffffff1d00fc4 R15: dffffc0000000000 [ 288.943230][ C0] FS: 0000000000000000(0000) GS:ffff888124f4f000(0000) knlGS:0000000000000000 [ 288.943243][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 288.943255][ C0] CR2: 00005561404e2660 CR3: 000000000e946000 CR4: 00000000003526f0 [ 288.943270][ C0] Call Trace: [ 288.943280][ C0] [ 288.943287][ C0] default_idle+0x9/0x20 [ 288.943303][ C0] default_idle_call+0x72/0xb0 [ 288.943320][ C0] do_idle+0x1cc/0x540 [ 288.943347][ C0] ? __pfx_do_idle+0x10/0x10 [ 288.943373][ C0] cpu_startup_entry+0x43/0x60 [ 288.943394][ C0] rest_init+0x2de/0x300 [ 288.943412][ C0] start_kernel+0x392/0x3e0 [ 288.943451][ C0] x86_64_start_reservations+0x24/0x30 [ 288.943479][ C0] x86_64_start_kernel+0x137/0x1b0 [ 288.943504][ C0] common_startup_64+0x13e/0x157 [ 288.943528][ C0] [ 288.944006][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 288.944022][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.944043][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.944053][ T31] Call Trace: [ 288.944062][ T31] [ 288.944070][ T31] vpanic+0x56c/0xa60 [ 288.944104][ T31] ? __pfx_vpanic+0x10/0x10 [ 288.944132][ T31] ? __down_trylock_console_sem+0x6b/0x110 [ 288.944160][ T31] panic+0xc5/0xd0 [ 288.944185][ T31] ? __pfx_panic+0x10/0x10 [ 288.944215][ T31] ? wq_watchdog_touch+0xf9/0x160 [ 288.944239][ T31] ? nmi_trigger_cpumask_backtrace+0x247/0x380 [ 288.944267][ T31] watchdog+0x1030/0x1030 [ 288.944299][ T31] ? watchdog+0x1c7/0x1030 [ 288.944328][ T31] kthread+0x388/0x470 [ 288.944355][ T31] ? __pfx_watchdog+0x10/0x10 [ 288.944376][ T31] ? __pfx_kthread+0x10/0x10 [ 288.944404][ T31] ret_from_fork+0x514/0xb70 [ 288.944435][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 288.944462][ T31] ? __switch_to+0xc89/0x1420 [ 288.944488][ T31] ? __pfx_kthread+0x10/0x10 [ 288.944521][ T31] ret_from_fork_asm+0x1a/0x30 [ 288.944554][ T31] [ 289.241408][ T31] Kernel Offset: disabled [ 289.246202][ T31] Rebooting in 86400 seconds..