ci-upstream-kasan-gce-smack-root/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-kasan-gce-smack-root/syz-executor2624246537 <...> Warning: Permanently added '10.128.1.18' (ED25519) to the list of known hosts. execve("ci-upstream-kasan-gce-smack-root/syz-executor2624246537", ["ci-upstream-kasan-gce-smack-root/syz-executor2624246537"], 0x7ffed5e63730 /* 10 vars */) = 0 brk(NULL) = 0x55555b017000 brk(0x55555b017d80) = 0x55555b017d80 arch_prctl(ARCH_SET_FS, 0x55555b017400) = 0 set_tid_address(0x55555b0176d0) = 5622 set_robust_list(0x55555b0176e0, 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-kasan-gce-smack-root/syz-executor2624246537", 4096) = 61 getrandom("\xb9\x7a\x08\x34\x29\xc4\x25\x5e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555b017d80 brk(0x55555b038d80) = 0x55555b038d80 brk(0x55555b039000) = 0x55555b039000 mprotect(0x7fe85fc2a000, 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-kasan-gce-smack-root/strace-static-x86_64: Process 5623 attached , child_tidptr=0x55555b0176d0) = 5623 [pid 5623] set_robust_list(0x55555b0176e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5623] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5623] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5624 attached [pid 5623] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5622] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5624 [pid 5624] set_robust_list(0x55555b0176e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5624] <... set_robust_list resumed>) = 0 [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5625 attached [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5626 attached [pid 5625] set_robust_list(0x55555b0176e0, 24 [pid 5624] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5623] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5625 [pid 5622] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5626 [pid 5626] set_robust_list(0x55555b0176e0, 24 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... set_robust_list resumed>) = 0 [pid 5626] <... set_robust_list resumed>) = 0 [pid 5624] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5624] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] <... prctl resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5625] setpgid(0, 0ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5627 attached [pid 5626] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5625] <... setpgid resumed>) = 0 ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5628 attached [pid 5627] set_robust_list(0x55555b0176e0, 24 [pid 5626] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5624] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5627 [pid 5622] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5628 [pid 5628] set_robust_list(0x55555b0176e0, 24 [pid 5625] <... openat resumed>) = 3 [pid 5622] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5628] <... set_robust_list resumed>) = 0 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5625] write(3, "1000", 4 [pid 5622] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... write resumed>) = 4 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5622] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] close(3 [pid 5622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5625] <... close resumed>) = 0 ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5629 attached [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] set_robust_list(0x55555b0176e0, 24 [pid 5626] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5629 [pid 5628] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5625] write(1, "executing program\n", 18ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5630 attached [pid 5622] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5630 [pid 5628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] <... write resumed>) = 18 [pid 5622] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] set_robust_list(0x55555b0176e0, 24 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5627] <... prctl resumed>) = 0 [pid 5625] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5622] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] <... set_robust_list resumed>) = 0 [pid 5627] setpgid(0, 0 [pid 5625] <... socket resumed>) = 3 ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5631 attached [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] <... setpgid resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [] executing program [pid 5625] 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=524281, nlmsg_pid=635427836}, "\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_DONTROUTE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5631] set_robust_list(0x55555b0176e0, 24 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5631 [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] <... set_robust_list resumed>) = 0 [pid 5630] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] <... openat resumed>) = 3 [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5629] <... prctl resumed>) = 0 [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] write(3, "1000", 4 [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5629] setpgid(0, 0 [pid 5627] <... write resumed>) = 4 executing program [pid 5627] close(3 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] <... setpgid resumed>) = 0 [pid 5627] <... close resumed>) = 0 [pid 5631] <... prctl resumed>) = 0 [pid 5627] write(1, "executing program\n", 18 [pid 5631] setpgid(0, 0) = 0 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] <... write resumed>) = 18 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5631] <... openat resumed>) = 3 [pid 5629] <... openat resumed>) = 3 [pid 5627] <... socket resumed>) = 3 ci-upstream-kasan-gce-smack-root/strace-static-x86_64: Process 5633 attached [pid 5631] write(3, "1000", 4 [pid 5629] write(3, "1000", 4 [pid 5627] 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=524281, nlmsg_pid=635427836}, "\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_DONTROUTE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5633] set_robust_list(0x55555b0176e0, 24 [pid 5631] <... write resumed>) = 4 [pid 5630] <... clone resumed>, child_tidptr=0x55555b0176d0) = 5633 [pid 5629] <... write resumed>) = 4 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5631] close(3 [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] close(3 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] <... close resumed>) = 0 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... close resumed>) = 0 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] write(1, "executing program\n", 18 [pid 5629] write(1, "executing program\n", 18 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] <... write resumed>) = 18 [pid 5633] <... prctl resumed>) = 0 executing program executing program [pid 5631] <... write resumed>) = 18 [pid 5633] setpgid(0, 0 [pid 5631] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5629] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5633] <... setpgid resumed>) = 0 [pid 5631] <... socket resumed>) = 3 [pid 5629] <... socket resumed>) = 3 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5629] 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=524281, nlmsg_pid=635427836}, "\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_DONTROUTE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5633] <... openat resumed>) = 3 [pid 5631] 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=524281, nlmsg_pid=635427836}, "\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_DONTROUTE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5633] write(3, "1000", 4) = 4 [pid 5633] close(3) = 0 [pid 5633] write(1, "executing program\n", 18) = 18 executing program [pid 5633] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5633] 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=524281, nlmsg_pid=635427836}, "\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_DONTROUTE|MSG_EOR|MSG_MORE|MSG_ZEROCOPY [pid 5625] <... sendmsg resumed>) = 20 [pid 5625] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [ 430.448897][ T38] INFO: task syz-executor262:5629 blocked for more than 143 seconds. [ 430.451017][ T38] Not ** replaying previous printk message ** [ 430.451017][ T38] Not tainted syzkaller #0 [ 430.451035][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.451044][ T38] task:syz-executor262 state:D stack:27240 pid:5629 tgid:5629 ppid:5626 task_flags:0x400140 flags:0x00080002 [ 430.451134][ T38] Call Trace: [ 430.451144][ T38] [ 430.451158][ T38] __schedule+0x16d9/0x5700 [ 430.451266][ T38] ? __pfx___schedule+0x10/0x10 [ 430.451302][ T38] rt_mutex_schedule+0x76/0xf0 [ 430.451327][ T38] rt_mutex_slowlock_block+0x55e/0x690 [ 430.451368][ T38] rt_mutex_slowlock+0x2d4/0x780 [ 430.451397][ T38] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.451423][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.451447][ T38] ? stack_trace_save+0xa9/0x100 [ 430.451487][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.451519][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.451542][ T38] mutex_lock_nested+0x168/0x1d0 [ 430.451581][ T38] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.451612][ T38] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.451653][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.451675][ T38] ? rcu_is_watching+0x16/0xb0 [ 430.451702][ T38] ? trace_kmalloc+0x2a/0xf0 [ 430.451732][ T38] ? __nla_parse+0x40/0x60 [ 430.451759][ T38] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.451789][ T38] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.451819][ T38] genl_family_rcv_msg_doit+0x233/0x340 [ 430.451849][ T38] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.451883][ T38] ? bpf_lsm_capable+0x9/0x20 [ 430.451903][ T38] ? security_capable+0x7e/0x2c0 [ 430.451933][ T38] genl_rcv_msg+0x614/0x7a0 [ 430.451962][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.451983][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.452021][ T38] netlink_rcv_skb+0x226/0x4a0 [ 430.452049][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.452073][ T38] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.452112][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.452138][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.452168][ T38] genl_rcv+0x28/0x40 [ 430.452189][ T38] netlink_unicast+0x7f5/0x990 [ 430.452225][ T38] netlink_sendmsg+0x813/0xb40 [ 430.452253][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.452273][ T38] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.452307][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.452324][ T38] sock_sendmsg_nosec+0x13a/0x180 [ 430.452349][ T38] ____sys_sendmsg+0x565/0x870 [ 430.452413][ T38] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.452448][ T38] ? import_iovec+0x73/0xa0 [ 430.452474][ T38] ___sys_sendmsg+0x2a5/0x360 [ 430.452505][ T38] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.452550][ T38] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 430.452578][ T38] ? rt_mutex_slowunlock+0x4ee/0xa30 [ 430.452629][ T38] __x64_sys_sendmsg+0x1b7/0x290 [ 430.452658][ T38] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.452691][ T38] ? do_user_addr_fault+0xc4c/0x1340 [ 430.452722][ T38] do_syscall_64+0x166/0x520 [ 430.452743][ T38] ? trace_irq_disable+0x3b/0x140 [ 430.452765][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.452784][ T38] ? clear_bhb_loop+0x70/0xc0 [ 430.452807][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.452826][ T38] RIP: 0033:0x7fe85fb976f9 [ 430.452853][ T38] RSP: 002b:00007ffe4a7fd278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.452874][ T38] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fe85fb976f9 [ 430.452888][ T38] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 430.452901][ T38] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 430.452913][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe4a7fd3f8 [ 430.452925][ T38] R13: 0000000000000002 R14: 00007ffe4a7fd2a0 R15: 00007ffe4a7fd290 [ 430.452955][ T38] [ 430.452964][ T38] INFO: task syz-executor262:5631 blocked for more than 143 seconds. [ 430.452979][ T38] Not tainted syzkaller #0 [ 430.452988][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.452996][ T38] task:syz-executor262 state:D stack:27240 pid:5631 tgid:5631 ppid:5628 task_flags:0x400140 flags:0x00080002 [ 430.453049][ T38] Call Trace: [ 430.453055][ T38] [ 430.453067][ T38] __schedule+0x16d9/0x5700 [ 430.453115][ T38] ? __pfx___schedule+0x10/0x10 [ 430.453149][ T38] rt_mutex_schedule+0x76/0xf0 [ 430.453171][ T38] rt_mutex_slowlock_block+0x55e/0x690 [ 430.453212][ T38] rt_mutex_slowlock+0x2d4/0x780 [ 430.453239][ T38] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.453266][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.453290][ T38] ? stack_trace_save+0xa9/0x100 [ 430.453329][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.453360][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.453382][ T38] mutex_lock_nested+0x168/0x1d0 [ 430.453413][ T38] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.453444][ T38] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.453483][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.453506][ T38] ? rcu_is_watching+0x16/0xb0 [ 430.453531][ T38] ? trace_kmalloc+0x2a/0xf0 [ 430.453561][ T38] ? __nla_parse+0x40/0x60 [ 430.453595][ T38] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.453617][ T38] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.453647][ T38] genl_family_rcv_msg_doit+0x233/0x340 [ 430.453676][ T38] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.453711][ T38] ? bpf_lsm_capable+0x9/0x20 [ 430.453730][ T38] ? security_capable+0x7e/0x2c0 [ 430.453759][ T38] genl_rcv_msg+0x614/0x7a0 [ 430.453787][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.453808][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.453847][ T38] netlink_rcv_skb+0x226/0x4a0 [ 430.453875][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.453898][ T38] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.453937][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.453964][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.453994][ T38] genl_rcv+0x28/0x40 [ 430.454014][ T38] netlink_unicast+0x7f5/0x990 [ 430.454050][ T38] netlink_sendmsg+0x813/0xb40 [ 430.454077][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.454098][ T38] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.454130][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.454147][ T38] sock_sendmsg_nosec+0x13a/0x180 [ 430.454170][ T38] ____sys_sendmsg+0x565/0x870 [ 430.454204][ T38] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.454246][ T38] ? import_iovec+0x73/0xa0 [ 430.454272][ T38] ___sys_sendmsg+0x2a5/0x360 [ 430.454303][ T38] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.454348][ T38] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 430.454369][ T38] ? rt_mutex_slowunlock+0x4ee/0xa30 [ 430.454421][ T38] __x64_sys_sendmsg+0x1b7/0x290 [ 430.454449][ T38] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.454482][ T38] ? do_user_addr_fault+0xc4c/0x1340 [ 430.454512][ T38] do_syscall_64+0x166/0x520 [ 430.454532][ T38] ? trace_irq_disable+0x3b/0x140 [ 430.454553][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.454580][ T38] ? clear_bhb_loop+0x70/0xc0 [ 430.454603][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.454621][ T38] RIP: 0033:0x7fe85fb976f9 [ 430.454637][ T38] RSP: 002b:00007ffe4a7fd278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.454655][ T38] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fe85fb976f9 [ 430.454669][ T38] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 430.454681][ T38] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 430.454693][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe4a7fd3f8 [ 430.454704][ T38] R13: 0000000000000002 R14: 00007ffe4a7fd2a0 R15: 00007ffe4a7fd290 [ 430.454734][ T38] [ 430.454742][ T38] INFO: task syz-executor262:5633 blocked for more than 143 seconds. [ 430.454755][ T38] Not tainted syzkaller #0 [ 430.454763][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.454771][ T38] task:syz-executor262 state:D stack:27240 pid:5633 tgid:5633 ppid:5630 task_flags:0x400140 flags:0x00080002 [ 430.454823][ T38] Call Trace: [ 430.454829][ T38] [ 430.454840][ T38] __schedule+0x16d9/0x5700 [ 430.454887][ T38] ? __pfx___schedule+0x10/0x10 [ 430.454922][ T38] rt_mutex_schedule+0x76/0xf0 [ 430.454945][ T38] rt_mutex_slowlock_block+0x55e/0x690 [ 430.454985][ T38] rt_mutex_slowlock+0x2d4/0x780 [ 430.455013][ T38] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.455040][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.455064][ T38] ? stack_trace_save+0xa9/0x100 [ 430.455102][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.455133][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.455156][ T38] mutex_lock_nested+0x168/0x1d0 [ 430.455187][ T38] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.455218][ T38] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.455257][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.455279][ T38] ? rcu_is_watching+0x16/0xb0 [ 430.455305][ T38] ? trace_kmalloc+0x2a/0xf0 [ 430.455335][ T38] ? __nla_parse+0x40/0x60 [ 430.455361][ T38] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.455383][ T38] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.455412][ T38] genl_family_rcv_msg_doit+0x233/0x340 [ 430.455442][ T38] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.455477][ T38] ? bpf_lsm_capable+0x9/0x20 [ 430.455496][ T38] ? security_capable+0x7e/0x2c0 [ 430.455525][ T38] genl_rcv_msg+0x614/0x7a0 [ 430.455553][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.455581][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.455620][ T38] netlink_rcv_skb+0x226/0x4a0 [ 430.455648][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.455671][ T38] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.455711][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.455737][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.455767][ T38] genl_rcv+0x28/0x40 [ 430.455787][ T38] netlink_unicast+0x7f5/0x990 [ 430.455822][ T38] netlink_sendmsg+0x813/0xb40 [ 430.455849][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.455869][ T38] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.455902][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.455919][ T38] sock_sendmsg_nosec+0x13a/0x180 [ 430.455942][ T38] ____sys_sendmsg+0x565/0x870 [ 430.455976][ T38] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.456010][ T38] ? import_iovec+0x73/0xa0 [ 430.456036][ T38] ___sys_sendmsg+0x2a5/0x360 [ 430.456066][ T38] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.456111][ T38] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 430.456132][ T38] ? rt_mutex_slowunlock+0x4ee/0xa30 [ 430.456183][ T38] __x64_sys_sendmsg+0x1b7/0x290 [ 430.456211][ T38] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.456244][ T38] ? do_user_addr_fault+0xc4c/0x1340 [ 430.456274][ T38] do_syscall_64+0x166/0x520 [ 430.456294][ T38] ? trace_irq_disable+0x3b/0x140 [ 430.456315][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.456334][ T38] ? clear_bhb_loop+0x70/0xc0 [ 430.456357][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.456375][ T38] RIP: 0033:0x7fe85fb976f9 [ 430.456391][ T38] RSP: 002b:00007ffe4a7fd278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.456409][ T38] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fe85fb976f9 [ 430.456422][ T38] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 430.456434][ T38] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 430.456446][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe4a7fd3f8 [ 430.456458][ T38] R13: 0000000000000002 R14: 00007ffe4a7fd2a0 R15: 00007ffe4a7fd290 [ 430.456488][ T38] [ 430.456496][ T38] INFO: task syz-executor262:5653 blocked for more than 143 seconds. [ 430.456509][ T38] Not tainted syzkaller #0 [ 430.456517][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 430.456525][ T38] task:syz-executor262 state:D stack:27144 pid:5653 tgid:5653 ppid:5623 task_flags:0x400140 flags:0x00080002 [ 430.456583][ T38] Call Trace: [ 430.456589][ T38] [ 430.456600][ T38] __schedule+0x16d9/0x5700 [ 430.456648][ T38] ? __pfx___schedule+0x10/0x10 [ 430.456682][ T38] rt_mutex_schedule+0x76/0xf0 [ 430.456705][ T38] rt_mutex_slowlock_block+0x55e/0x690 [ 430.456745][ T38] rt_mutex_slowlock+0x2d4/0x780 [ 430.456773][ T38] ? rt_mutex_slowlock+0x1f2/0x780 [ 430.456800][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 430.456824][ T38] ? stack_trace_save+0xa9/0x100 [ 430.456862][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.456892][ T38] ? nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.456915][ T38] mutex_lock_nested+0x168/0x1d0 [ 430.456945][ T38] nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.456976][ T38] ? __pfx___nla_validate_parse+0x10/0x10 [ 430.457015][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.457038][ T38] ? rcu_is_watching+0x16/0xb0 [ 430.457063][ T38] ? trace_kmalloc+0x2a/0xf0 [ 430.457093][ T38] ? __nla_parse+0x40/0x60 [ 430.457119][ T38] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 430.457141][ T38] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 430.457171][ T38] genl_family_rcv_msg_doit+0x233/0x340 [ 430.457201][ T38] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 430.457235][ T38] ? bpf_lsm_capable+0x9/0x20 [ 430.457254][ T38] ? security_capable+0x7e/0x2c0 [ 430.457283][ T38] genl_rcv_msg+0x614/0x7a0 [ 430.457311][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.457332][ T38] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 430.457371][ T38] netlink_rcv_skb+0x226/0x4a0 [ 430.457399][ T38] ? __pfx_genl_rcv_msg+0x10/0x10 [ 430.457422][ T38] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 430.457462][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.457488][ T38] ? netlink_deliver_tap+0x2e/0x1b0 [ 430.457518][ T38] genl_rcv+0x28/0x40 [ 430.457538][ T38] netlink_unicast+0x7f5/0x990 [ 430.457580][ T38] netlink_sendmsg+0x813/0xb40 [ 430.457608][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.457628][ T38] ? tomoyo_socket_sendmsg_permission+0x1e0/0x300 [ 430.457661][ T38] ? __pfx_netlink_sendmsg+0x10/0x10 [ 430.457678][ T38] sock_sendmsg_nosec+0x13a/0x180 [ 430.457701][ T38] ____sys_sendmsg+0x565/0x870 [ 430.457735][ T38] ? __pfx_____sys_sendmsg+0x10/0x10 [ 430.457769][ T38] ? import_iovec+0x73/0xa0 [ 430.457795][ T38] ___sys_sendmsg+0x2a5/0x360 [ 430.457826][ T38] ? __pfx____sys_sendmsg+0x10/0x10 [ 430.457870][ T38] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 430.457892][ T38] ? rt_mutex_slowunlock+0x4ee/0xa30 [ 430.457943][ T38] __x64_sys_sendmsg+0x1b7/0x290 [ 430.457971][ T38] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 430.458005][ T38] ? do_user_addr_fault+0xc4c/0x1340 [ 430.458035][ T38] do_syscall_64+0x166/0x520 [ 430.458055][ T38] ? trace_irq_disable+0x3b/0x140 [ 430.458076][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.458095][ T38] ? clear_bhb_loop+0x70/0xc0 [ 430.458118][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.458136][ T38] RIP: 0033:0x7fe85fb976f9 [ 430.458151][ T38] RSP: 002b:00007ffe4a7fd278 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 430.458169][ T38] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007fe85fb976f9 [ 430.458182][ T38] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 430.458194][ T38] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 430.458206][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000024694 [ 430.458217][ T38] R13: 00007ffe4a7fd28c R14: 00007ffe4a7fd2a0 R15: 00007ffe4a7fd290 [ 430.458248][ T38] [ 430.458259][ T38] [ 430.458259][ T38] Showing all locks held in the system: [ 430.458268][ T38] locks held by pr/ttyS0/17: 3, last CPU#0: [ 430.458282][ T38] #0: ffffffff8e09d578 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60 [ 430.458337][ T38] #1: ffffffff99e991f8 (&port_lock_key){+.+.}-{3:3}, at: nbcon_kthread_func+0x64c/0x880 [ 430.458386][ T38] #2: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e2/0x400 [ 430.460410][ T38] locks held by khungtaskd/38: 1, last CPU#1: [ 430.460425][ T38] #0: ffffffff8e1c3ac0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 430.460500][ T38] locks held by getty/5341: 2, on CPU#1: [ 430.460513][ T38] #0: ffff88803621b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.460565][ T38] #1: ffffc900044ce2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 [ 430.460622][ T38] locks held by syz-executor262/5627: 2, on CPU#0: [ 430.460635][ T38] #0: ffffffff8f643260 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.460681][ T38] #1: ffffffff8e4f7358 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.460765][ T38] locks held by syz-executor262/5629: 2, on CPU#1: [ 430.460778][ T38] #0: ffffffff8f643260 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.460823][ T38] #1: ffffffff8e4f7358 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.460872][ T38] locks held by syz-executor262/5631: 2, on CPU#0: [ 430.460885][ T38] #0: ffffffff8f643260 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.460930][ T38] #1: ffffffff8e4f7358 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.460980][ T38] locks held by syz-executor262/5633: 2, on CPU#0: [ 430.460992][ T38] #0: ffffffff8f643260 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.461037][ T38] #1: ffffffff8e4f7358 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.461086][ T38] locks held by syz-executor262/5653: 2, on CPU#0: [ 430.461099][ T38] #0: ffffffff8f643260 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 430.461143][ T38] #1: ffffffff8e4f7358 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53b/0x1a90 [ 430.461194][ T38] [ 430.461199][ T38] ============================================= [ 430.461199][ T38] [ 430.461208][ T38] NMI backtrace for cpu 1 [ 430.461233][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 430.461253][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 430.461263][ T38] Call Trace: [ 430.461271][ T38] [ 430.461279][ T38] dump_stack_lvl+0xe8/0x150 [ 430.461306][ T38] nmi_cpu_backtrace+0x274/0x2d0 [ 430.461333][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.461362][ T38] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 430.461398][ T38] sys_info+0x135/0x170 [ 430.461422][ T38] watchdog+0xfd7/0x1030 [ 430.461451][ T38] ? watchdog+0x1c7/0x1030 [ 430.461478][ T38] kthread+0x38b/0x470 [ 430.461498][ T38] ? __pfx_watchdog+0x10/0x10 [ 430.461520][ T38] ? __pfx_kthread+0x10/0x10 [ 430.461540][ T38] ret_from_fork+0x514/0xb70 [ 430.461561][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 430.461586][ T38] ? __switch_to+0xc89/0x1420 [ 430.461613][ T38] ? __pfx_kthread+0x10/0x10 [ 430.461632][ T38] ret_from_fork_asm+0x1a/0x30 [ 430.461663][ T38] [ 430.461682][ T38] Sending NMI from CPU 1 to CPUs 0: [ 430.461781][ C0] NMI backtrace for cpu 0 [ 430.461799][ C0] CPU: 0 UID: 0 PID: 4934 Comm: syslogd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 430.461818][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 430.461828][ C0] RIP: 0010:unix_dgram_recvmsg+0x0/0xd0 [ 430.461852][ C0] Code: 0f 8c c8 fd ff ff 48 8b bc 24 88 00 00 00 e8 c7 10 38 f8 e9 b6 fd ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 41 57 41 56 41 55 41 54 53 89 cb 49 89 d6 49 89 f7 [ 430.461865][ C0] RSP: 0018:ffffc90004647b38 EFLAGS: 00010293 [ 430.461881][ C0] RAX: ffffffff891ab050 RBX: ffffc90004647be8 RCX: 0000000000000000 [ 430.461893][ C0] RDX: 00000000000000ff RSI: ffffc90004647bc0 RDI: ffff888033a90dc0 [ 430.461904][ C0] RBP: ffffffff8c80eff8 R08: 0000000000000000 R09: 0000000000000000 [ 430.461915][ C0] R10: ffffc90004647bf8 R11: ffffffff89fa25f0 R12: 00000000000000ff [ 430.461926][ C0] R13: ffffffff89fa25f0 R14: ffff888033a90dc0 R15: ffffc90004647bc0 [ 430.461938][ C0] FS: 00007f86bfc94c80(0000) GS:ffff888125bd4000(0000) knlGS:0000000000000000 [ 430.461952][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 430.461964][ C0] CR2: 00007f2f085e6e9c CR3: 00000000378c0000 CR4: 00000000003526f0 [ 430.461980][ C0] Call Trace: [ 430.461986][ C0] [ 430.461992][ C0] sock_recvmsg+0x196/0x1e0 [ 430.462012][ C0] sock_read_iter+0x233/0x300 [ 430.462029][ C0] ? __pfx_sock_read_iter+0x10/0x10 [ 430.462047][ C0] ? bpf_lsm_file_permission+0x9/0x20 [ 430.462063][ C0] ? security_file_permission+0x75/0x260 [ 430.462094][ C0] vfs_read+0x59e/0xa90 [ 430.462115][ C0] ? __pfx_vfs_read+0x10/0x10 [ 430.462132][ C0] ? lapic_next_event+0x11/0x20 [ 430.462149][ C0] ? clockevents_program_event+0x491/0x630 [ 430.462171][ C0] ksys_read+0x156/0x270 [ 430.462189][ C0] ? __pfx_ksys_read+0x10/0x10 [ 430.462210][ C0] do_syscall_64+0x166/0x520 [ 430.462228][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.462244][ C0] ? clear_bhb_loop+0x70/0xc0 [ 430.462262][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 430.462278][ C0] RIP: 0033:0x7f86bfde4407 [ 430.462292][ C0] Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff [ 430.462305][ C0] RSP: 002b:00007ffe70d620a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 430.462321][ C0] RAX: ffffffffffffffda RBX: 00007f86bfc94c80 RCX: 00007f86bfde4407 [ 430.462333][ C0] RDX: 00000000000000ff RSI: 000055d6b5d8c950 RDI: 0000000000000000 [ 430.462343][ C0] RBP: 000055d6b5d8c910 R08: 0000000000000000 R09: 0000000000000000 [ 430.462353][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 000055d6b5d8c9c4 [ 430.462364][ C0] R13: 0000000000000000 R14: 000055d6b5d8c950 R15: 000055d6aeae7d98 [ 430.462382][ C0] [ 430.463656][ T38] Kernel panic - not syncing: hung_task: blocked tasks [ 432.583160][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 432.592812][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 432.603067][ T38] Call Trace: [ 432.606359][ T38] [ 432.609285][ T38] vpanic+0x56d/0xa60 [ 432.613285][ T38] ? __pfx___schedule+0x10/0x10 [ 432.618151][ T38] ? __pfx_vpanic+0x10/0x10 [ 432.622683][ T38] panic+0xc5/0xd0 [ 432.626962][ T38] ? __pfx_panic+0x10/0x10 [ 432.631684][ T38] ? preempt_schedule_common+0x7f/0xd0 [ 432.637168][ T38] ? preempt_schedule_thunk+0x16/0x40 [ 432.642788][ T38] ? nmi_trigger_cpumask_backtrace+0x31a/0x390 [ 432.649091][ T38] ? nmi_trigger_cpumask_backtrace+0x31f/0x390 [ 432.655319][ T38] watchdog+0x1030/0x1030 [ 432.659803][ T38] ? watchdog+0x1c7/0x1030 [ 432.664244][ T38] kthread+0x38b/0x470 [ 432.668328][ T38] ? __pfx_watchdog+0x10/0x10 [ 432.673000][ T38] ? __pfx_kthread+0x10/0x10 [ 432.677707][ T38] ret_from_fork+0x514/0xb70 [ 432.682331][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 432.687478][ T38] ? __switch_to+0xc89/0x1420 [ 432.692198][ T38] ? __pfx_kthread+0x10/0x10 [ 432.696803][ T38] ret_from_fork_asm+0x1a/0x30 [ 432.701600][ T38] [ 432.705078][ T38] Kernel Offset: disabled [ 432.709868][ T38] Rebooting in 86400 seconds..