ci-upstream-net-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-kasan-gce/syz-executor2997930475 <...> Warning: Permanently added '10.128.0.178' (ED25519) to the list of known hosts. execve("ci-upstream-net-kasan-gce/syz-executor2997930475", ["ci-upstream-net-kasan-gce/syz-executor2997930475"], 0x7ffccaf2d7c0 /* 10 vars */) = 0 brk(NULL) = 0x55556b8e9000 brk(0x55556b8e9d80) = 0x55556b8e9d80 arch_prctl(ARCH_SET_FS, 0x55556b8e9400) = 0 set_tid_address(0x55556b8e96d0) = 5641 set_robust_list(0x55556b8e96e0, 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-executor2997930475", 4096) = 54 getrandom("\x05\x15\xb6\x53\x21\x48\xe5\xb7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556b8e9d80 brk(0x55556b90ad80) = 0x55556b90ad80 brk(0x55556b90b000) = 0x55556b90b000 mprotect(0x7f0939fb8000, 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 5643 attached , child_tidptr=0x55556b8e96d0) = 5643 [pid 5643] set_robust_list(0x55556b8e96e0, 24 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... set_robust_list resumed>) = 0 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5644 attached [pid 5643] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5641] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5644 [pid 5644] set_robust_list(0x55556b8e96e0, 24 [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] <... set_robust_list resumed>) = 0 [pid 5643] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5644] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5645 attached [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5644] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] set_robust_list(0x55556b8e96e0, 24 [pid 5644] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5645] <... set_robust_list resumed>) = 0 [pid 5643] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5645 [pid 5644] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5645] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] rt_sigprocmask(SIG_SETMASK, []ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5646 attached , NULL, 8) = 0 [pid 5641] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5646 [pid 5645] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5647 attached [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5646] set_robust_list(0x55556b8e96e0, 24 [pid 5645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... set_robust_list resumed>) = 0 [pid 5644] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5647 [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5647] set_robust_list(0x55556b8e96e0, 24 [pid 5645] <... prctl resumed>) = 0 [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5647] <... set_robust_list resumed>) = 0 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] setpgid(0, 0 [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] <... setpgid resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5647] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5646] rt_sigprocmask(SIG_BLOCK, ~[]ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5648 attached [pid 5647] <... prctl resumed>) = 0 [pid 5646] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5645] <... openat resumed>) = 3 [pid 5641] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5648 [pid 5648] set_robust_list(0x55556b8e96e0, 24 [pid 5647] setpgid(0, 0) = 0 [pid 5646] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECci-upstream-net-kasan-gce/strace-static-x86_64: Process 5649 attached [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] <... set_robust_list resumed>) = 0 [pid 5647] <... openat resumed>) = 3 [pid 5645] write(3, "1000", 4 [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5646] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5649 [pid 5645] <... write resumed>) = 4 [pid 5641] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5649] set_robust_list(0x55556b8e96e0, 24 [pid 5648] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5647] write(3, "1000", 4 [pid 5646] rt_sigprocmask(SIG_SETMASK, [] [pid 5645] close(3 [pid 5641] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] <... set_robust_list resumed>) = 0 [pid 5648] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5647] <... write resumed>) = 4 [pid 5646] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5645] <... close resumed>) = 0 [pid 5649] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5647] close(3 executing program [pid 5645] write(1, "executing program\n", 18ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5650 attached ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5651 attached executing program [pid 5641] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5650 [pid 5649] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... close resumed>) = 0 [pid 5645] <... write resumed>) = 18 [pid 5651] set_robust_list(0x55556b8e96e0, 24 [pid 5650] set_robust_list(0x55556b8e96e0, 24 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5641] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] <... set_robust_list resumed>) = 0 [pid 5650] <... set_robust_list resumed>) = 0 [pid 5649] <... prctl resumed>) = 0 [pid 5648] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5651 [pid 5647] write(1, "executing program\n", 18 [pid 5645] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5641] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... write resumed>) = 18 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5649] setpgid(0, 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [] [pid 5647] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5645] <... socket resumed>) = 3 [pid 5649] <... setpgid resumed>) = 0 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5648] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5647] <... socket resumed>) = 3 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5650] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5649] <... openat resumed>) = 3 [pid 5645] 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 5651] <... prctl resumed>) = 0 [pid 5650] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5649] write(3, "1000", 4 [pid 5647] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=20, nlmsg_type=0x27 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=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 5651] setpgid(0, 0 [pid 5650] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5649] <... write resumed>) = 4 [pid 5651] <... setpgid resumed>) = 0 executing program [pid 5649] close(3) = 0 [pid 5649] write(1, "executing program\n", 18) = 18 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5649] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5649] 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_ZEROCOPYci-upstream-net-kasan-gce/strace-static-x86_64: Process 5652 attached [pid 5651] <... openat resumed>) = 3 [pid 5651] write(3, "1000", 4 [pid 5650] <... clone resumed>, child_tidptr=0x55556b8e96d0) = 5652 [pid 5652] set_robust_list(0x55556b8e96e0, 24) = 0 [pid 5651] <... write resumed>) = 4 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] close(3 [pid 5650] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] <... close resumed>) = 0 [pid 5650] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] write(1, "executing program\n", 18) = 18 executing program [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5651] <... socket resumed>) = 3 [pid 5652] setpgid(0, 0 [pid 5651] 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 5652] <... setpgid resumed>) = 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5652] write(3, "1000", 4) = 4 executing program [pid 5652] close(3) = 0 [pid 5652] write(1, "executing program\n", 18) = 18 [pid 5652] socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 [pid 5652] 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 5645] <... sendmsg resumed>) = 20 [pid 5645] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [ 286.620819][ T32] INFO: task syz-executor299:5649 blocked for more than 143 seconds. [ 286.620841][ T32] Not tainted syzkaller #0 [ 286.620848][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.620853][ T32] task:syz-executor299 state:D stack:27472 pid:5649 tgid:5649 ppid:5646 task_flags:0x400140 flags:0x00080002 [ 286.620886][ T32] Call Trace: [ 286.620892][ T32] [ 286.620902][ T32] __schedule+0x17db/0x58f0 [ 286.620966][ T32] ? __pfx___schedule+0x10/0x10 [ 286.620985][ T32] ? schedule+0x90/0x2b0 [ 286.621000][ T32] schedule+0x164/0x2b0 [ 286.621014][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.621027][ T32] __mutex_lock+0x7c1/0x1550 [ 286.621045][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.621061][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.621082][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.621095][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.621113][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.621127][ T32] ? do_syscall_64+0x166/0x520 [ 286.621139][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.621157][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.621175][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.621199][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.621214][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.621227][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.621241][ T32] ? __nla_parse+0x40/0x60 [ 286.621257][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.621271][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.621290][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.621308][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.621329][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.621340][ T32] ? security_capable+0x7e/0x2c0 [ 286.621358][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.621375][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.621388][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.621414][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.621432][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.621446][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.621471][ T32] ? down_read+0x2be/0x330 [ 286.621488][ T32] genl_rcv+0x28/0x40 [ 286.621500][ T32] netlink_unicast+0x7bd/0x940 [ 286.621522][ T32] netlink_sendmsg+0x813/0xb40 [ 286.621544][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.621565][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.621577][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.621592][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.621608][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.621622][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.621641][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.621661][ T32] ? import_iovec+0x73/0xa0 [ 286.621677][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.621692][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.621707][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.621750][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.621764][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.621777][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.621797][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.621815][ T32] do_syscall_64+0x166/0x520 [ 286.621828][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.621840][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.621852][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.621866][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.621878][ T32] RIP: 0033:0x7f0939f256f9 [ 286.621890][ T32] RSP: 002b:00007ffdfb889d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.621903][ T32] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007f0939f256f9 [ 286.621919][ T32] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 286.621927][ T32] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 286.621935][ T32] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfb889e98 [ 286.621942][ T32] R13: 0000000000000002 R14: 00007ffdfb889d40 R15: 00007ffdfb889d30 [ 286.621960][ T32] [ 286.621966][ T32] INFO: task syz-executor299:5651 blocked for more than 143 seconds. [ 286.621975][ T32] Not tainted syzkaller #0 [ 286.621981][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.621986][ T32] task:syz-executor299 state:D stack:27472 pid:5651 tgid:5651 ppid:5648 task_flags:0x400140 flags:0x00080002 [ 286.622015][ T32] Call Trace: [ 286.622019][ T32] [ 286.622026][ T32] __schedule+0x17db/0x58f0 [ 286.622055][ T32] ? __pfx___schedule+0x10/0x10 [ 286.622073][ T32] ? schedule+0x90/0x2b0 [ 286.622087][ T32] schedule+0x164/0x2b0 [ 286.622101][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.622114][ T32] __mutex_lock+0x7c1/0x1550 [ 286.622130][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.622146][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.622161][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.622174][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.622191][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.622204][ T32] ? do_syscall_64+0x166/0x520 [ 286.622217][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.622234][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.622252][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.622275][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.622290][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.622303][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.622316][ T32] ? __nla_parse+0x40/0x60 [ 286.622332][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.622346][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.622364][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.622382][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.622403][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.622416][ T32] ? security_capable+0x7e/0x2c0 [ 286.622433][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.622451][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.622463][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.622486][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.622503][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.622517][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.622542][ T32] ? down_read+0x2be/0x330 [ 286.622559][ T32] genl_rcv+0x28/0x40 [ 286.622571][ T32] netlink_unicast+0x7bd/0x940 [ 286.622593][ T32] netlink_sendmsg+0x813/0xb40 [ 286.622614][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.622635][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.622648][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.622664][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.622678][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.622696][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.622716][ T32] ? import_iovec+0x73/0xa0 [ 286.622732][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.622747][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.622761][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.622803][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.622818][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.622831][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.622851][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.622869][ T32] do_syscall_64+0x166/0x520 [ 286.622882][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.622893][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.622904][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.622925][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.622936][ T32] RIP: 0033:0x7f0939f256f9 [ 286.622946][ T32] RSP: 002b:00007ffdfb889d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.622958][ T32] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007f0939f256f9 [ 286.622967][ T32] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 286.622974][ T32] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 286.622982][ T32] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfb889e98 [ 286.622989][ T32] R13: 0000000000000002 R14: 00007ffdfb889d40 R15: 00007ffdfb889d30 [ 286.623007][ T32] [ 286.623012][ T32] INFO: task syz-executor299:5652 blocked for more than 143 seconds. [ 286.623021][ T32] Not tainted syzkaller #0 [ 286.623026][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.623031][ T32] task:syz-executor299 state:D stack:27472 pid:5652 tgid:5652 ppid:5650 task_flags:0x400140 flags:0x00080002 [ 286.623059][ T32] Call Trace: [ 286.623063][ T32] [ 286.623070][ T32] __schedule+0x17db/0x58f0 [ 286.623098][ T32] ? __pfx___schedule+0x10/0x10 [ 286.623116][ T32] ? schedule+0x90/0x2b0 [ 286.623130][ T32] schedule+0x164/0x2b0 [ 286.623144][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.623156][ T32] __mutex_lock+0x7c1/0x1550 [ 286.623173][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.623189][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.623204][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.623217][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.623234][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.623247][ T32] ? do_syscall_64+0x166/0x520 [ 286.623259][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.623276][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.623294][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.623318][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.623332][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.623345][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.623358][ T32] ? __nla_parse+0x40/0x60 [ 286.623374][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.623388][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.623406][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.623427][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.623448][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.623458][ T32] ? security_capable+0x7e/0x2c0 [ 286.623475][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.623492][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.623505][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.623527][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.623544][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.623558][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.623582][ T32] ? down_read+0x2be/0x330 [ 286.623599][ T32] genl_rcv+0x28/0x40 [ 286.623611][ T32] netlink_unicast+0x7bd/0x940 [ 286.623633][ T32] netlink_sendmsg+0x813/0xb40 [ 286.623654][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.623675][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.623687][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.623701][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.623717][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.623730][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.623748][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.623768][ T32] ? import_iovec+0x73/0xa0 [ 286.623784][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.623798][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.623812][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.623855][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.623870][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.623900][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.623925][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.623943][ T32] do_syscall_64+0x166/0x520 [ 286.623956][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.623967][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.623979][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.623993][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.624004][ T32] RIP: 0033:0x7f0939f256f9 [ 286.624014][ T32] RSP: 002b:00007ffdfb889d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.624025][ T32] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007f0939f256f9 [ 286.624034][ T32] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 286.624041][ T32] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 286.624049][ T32] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfb889e98 [ 286.624056][ T32] R13: 0000000000000002 R14: 00007ffdfb889d40 R15: 00007ffdfb889d30 [ 286.624074][ T32] [ 286.624079][ T32] INFO: task syz-executor299:5660 blocked for more than 143 seconds. [ 286.624087][ T32] Not tainted syzkaller #0 [ 286.624093][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.624098][ T32] task:syz-executor299 state:D stack:27368 pid:5660 tgid:5660 ppid:5643 task_flags:0x400140 flags:0x00080002 [ 286.624125][ T32] Call Trace: [ 286.624129][ T32] [ 286.624136][ T32] __schedule+0x17db/0x58f0 [ 286.624164][ T32] ? __pfx___schedule+0x10/0x10 [ 286.624182][ T32] ? schedule+0x90/0x2b0 [ 286.624196][ T32] schedule+0x164/0x2b0 [ 286.624210][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.624222][ T32] __mutex_lock+0x7c1/0x1550 [ 286.624238][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.624254][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.624269][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.624282][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.624299][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.624312][ T32] ? do_syscall_64+0x166/0x520 [ 286.624324][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.624341][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.624359][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.624382][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.624396][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.624409][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.624422][ T32] ? __nla_parse+0x40/0x60 [ 286.624439][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.624452][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.624471][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.624488][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.624509][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.624519][ T32] ? security_capable+0x7e/0x2c0 [ 286.624536][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.624553][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.624566][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.624588][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.624605][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.624619][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.624644][ T32] ? down_read+0x2be/0x330 [ 286.624661][ T32] genl_rcv+0x28/0x40 [ 286.624673][ T32] netlink_unicast+0x7bd/0x940 [ 286.624694][ T32] netlink_sendmsg+0x813/0xb40 [ 286.624716][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.624738][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.624749][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.624764][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.624780][ T32] sock_sendmsg_nosec+0x13a/0x180 [ 286.624793][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.624811][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.624832][ T32] ? import_iovec+0x73/0xa0 [ 286.624848][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.624863][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.624876][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.624925][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.624940][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.624953][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.624973][ T32] ? do_user_addr_fault+0xc4c/0x1340 [ 286.624991][ T32] do_syscall_64+0x166/0x520 [ 286.625004][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.625015][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.625026][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.625041][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.625052][ T32] RIP: 0033:0x7f0939f256f9 [ 286.625061][ T32] RSP: 002b:00007ffdfb889d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.625073][ T32] RAX: ffffffffffffffda RBX: 0000200000000080 RCX: 00007f0939f256f9 [ 286.625081][ T32] RDX: 0000000004008084 RSI: 0000200000000140 RDI: 0000000000000003 [ 286.625089][ T32] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000009 [ 286.625096][ T32] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000185cd [ 286.625103][ T32] R13: 00007ffdfb889d2c R14: 00007ffdfb889d40 R15: 00007ffdfb889d30 [ 286.625122][ T32] [ 286.625127][ T32] [ 286.625127][ T32] Showing all locks held in the system: [ 286.625133][ T32] locks held by khungtaskd/32: 1, last CPU#1: [ 286.625142][ T32] #0: ffffffff8ed5c8e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 286.625176][ T32] locks held by kworker/u8:5/93: 2, on CPU#1: [ 286.625184][ T32] #0: ffff88801b0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.625216][ T32] #1: ffffc9000203fc40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.625263][ T32] locks held by getty/5372: 2, on CPU#1: [ 286.625271][ T32] #0: ffff888034d7b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.625305][ T32] #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 286.625335][ T32] locks held by syz-executor299/5647: 2, on CPU#0: [ 286.625343][ T32] #0: ffffffff902c3fa8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.625372][ T32] #1: ffffffff8f09f580 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.625404][ T32] locks held by syz-executor299/5649: 2, on CPU#1: [ 286.625412][ T32] #0: ffffffff902c3fa8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.625442][ T32] #1: ffffffff8f09f580 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.625473][ T32] locks held by syz-executor299/5651: 2, on CPU#0: [ 286.625482][ T32] #0: ffffffff902c3fa8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.625511][ T32] #1: ffffffff8f09f580 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.625542][ T32] locks held by syz-executor299/5652: 2, on CPU#1: [ 286.625550][ T32] #0: ffffffff902c3fa8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.625579][ T32] #1: ffffffff8f09f580 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.625610][ T32] locks held by syz-executor299/5660: 2, on CPU#1: [ 286.625619][ T32] #0: ffffffff902c3fa8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.625648][ T32] #1: ffffffff8f09f580 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.625679][ T32] [ 286.625682][ T32] ============================================= [ 286.625682][ T32] [ 286.625688][ T32] NMI backtrace for cpu 1 [ 286.625697][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 286.625710][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 286.625716][ T32] Call Trace: [ 286.625721][ T32] [ 286.625726][ T32] dump_stack_lvl+0xe8/0x150 [ 286.625743][ T32] nmi_cpu_backtrace+0x274/0x2d0 [ 286.625759][ T32] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.625777][ T32] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 286.625795][ T32] sys_info+0x135/0x170 [ 286.625811][ T32] watchdog+0xfd7/0x1030 [ 286.625827][ T32] ? watchdog+0x1c7/0x1030 [ 286.625841][ T32] kthread+0x38b/0x480 [ 286.625853][ T32] ? __pfx_watchdog+0x10/0x10 [ 286.625863][ T32] ? __pfx_kthread+0x10/0x10 [ 286.625875][ T32] ret_from_fork+0x514/0xb70 [ 286.625888][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 286.625900][ T32] ? __switch_to+0xc89/0x1420 [ 286.625922][ T32] ? __pfx_kthread+0x10/0x10 [ 286.625934][ T32] ret_from_fork_asm+0x1a/0x30 [ 286.625958][ T32] [ 286.625963][ T32] Sending NMI from CPU 1 to CPUs 0: [ 286.626008][ C0] NMI backtrace for cpu 0 [ 286.626023][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 286.626042][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 286.626052][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 286.626075][ C0] Code: 5c 88 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 71 23 00 fb f4 8c 08 03 00 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 286.626089][ C0] RSP: 0018:ffffffff8ea07ca0 EFLAGS: 00000242 [ 286.626105][ C0] RAX: 00000000000cf407 RBX: ffffffff819bb25c RCX: 8000000000000001 [ 286.626118][ C0] RDX: 0000000000000001 RSI: ffffffff8e4152cd RDI: ffffffff8c6da080 [ 286.626130][ C0] RBP: ffffffff8ea07d78 R08: ffff8880b8633a1b R09: 1ffff110170c6743 [ 286.626142][ C0] R10: dffffc0000000000 R11: ffffed10170c6744 R12: 0000000000000000 [ 286.626154][ C0] R13: 1ffffffff1d51e00 R14: 1ffffffff1d40f9c R15: dffffc0000000000 [ 286.626167][ C0] FS: 0000000000000000(0000) GS:ffff888124ccd000(0000) knlGS:0000000000000000 [ 286.626182][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.626194][ C0] CR2: 00005603585a0608 CR3: 000000007b61e000 CR4: 00000000003526f0 [ 286.626212][ C0] Call Trace: [ 286.626218][ C0] [ 286.626225][ C0] default_idle+0x9/0x20 [ 286.626247][ C0] default_idle_call+0x72/0xb0 [ 286.626269][ C0] do_idle+0x1cc/0x540 [ 286.626287][ C0] ? __pfx_do_idle+0x10/0x10 [ 286.626307][ C0] cpu_startup_entry+0x43/0x60 [ 286.626323][ C0] rest_init+0x378/0x3a0 [ 286.626346][ C0] ? __pfx_rest_init+0x10/0x10 [ 286.626373][ C0] ? __pfx_kernel_init+0x10/0x10 [ 286.626397][ C0] ? __pfx_acpi_hw_get_mode+0x10/0x10 [ 286.626432][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 286.626452][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 286.626473][ C0] ? acpi_enable_subsystem+0x286/0x3c0 [ 286.626508][ C0] start_kernel+0x392/0x3e0 [ 286.626530][ C0] x86_64_start_reservations+0x24/0x30 [ 286.626556][ C0] x86_64_start_kernel+0x137/0x1b0 [ 286.626581][ C0] common_startup_64+0x13e/0x157 [ 286.626610][ C0] [ 286.626984][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 288.658893][ T32] CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.668002][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 288.678055][ T32] Call Trace: [ 288.681338][ T32] [ 288.684275][ T32] vpanic+0x56d/0xa60 [ 288.688271][ T32] ? __pfx_vpanic+0x10/0x10 [ 288.692784][ T32] ? console_srcu_read_unlock+0x3a/0x60 [ 288.698336][ T32] panic+0xc5/0xd0 [ 288.702061][ T32] ? __pfx_panic+0x10/0x10 [ 288.706485][ T32] ? wq_watchdog_touch+0xf9/0x160 [ 288.711516][ T32] ? nmi_trigger_cpumask_backtrace+0x24d/0x390 [ 288.717682][ T32] watchdog+0x1030/0x1030 [ 288.722020][ T32] ? watchdog+0x1c7/0x1030 [ 288.726450][ T32] kthread+0x38b/0x480 [ 288.730519][ T32] ? __pfx_watchdog+0x10/0x10 [ 288.735196][ T32] ? __pfx_kthread+0x10/0x10 [ 288.739785][ T32] ret_from_fork+0x514/0xb70 [ 288.744380][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 288.749494][ T32] ? __switch_to+0xc89/0x1420 [ 288.754180][ T32] ? __pfx_kthread+0x10/0x10 [ 288.758768][ T32] ret_from_fork_asm+0x1a/0x30 [ 288.763551][ T32] [ 288.766704][ T32] Kernel Offset: disabled [ 288.771023][ T32] Rebooting in 86400 seconds..