ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor2391554086

<...>
Warning: Permanently added '10.128.1.144' (ED25519) to the list of known hosts.
execve("ci2-upstream-fs/syz-executor2391554086", ["ci2-upstream-fs/syz-executor2391554086"], 0x7fffc73a2f80 /* 10 vars */) = 0
brk(NULL)                               = 0x555576b4a000
brk(0x555576b4ad80)                     = 0x555576b4ad80
arch_prctl(ARCH_SET_FS, 0x555576b4a400) = 0
set_tid_address(0x555576b4a6d0)         = 5632
set_robust_list(0x555576b4a6e0, 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/ci2-upstream-fs/syz-executor2391554086", 4096) = 44
getrandom("\x56\x95\x8d\x78\xe2\x73\xce\xfe", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x555576b4ad80
brk(0x555576b6bd80)                     = 0x555576b6bd80
brk(0x555576b6c000)                     = 0x555576b6c000
mprotect(0x7f3765ee4000, 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
openat(AT_FDCWD, "/dev/loop0", O_RDWR)  = 3
ioctl(3, LOOP_CLR_FD)                   = -1 ENXIO (No such device or address)
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, ~[], [], 8)   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5633 attached
, child_tidptr=0x555576b4a6d0) = 5633
[pid  5633] set_robust_list(0x555576b4a6e0, 24 <unfinished ...>
[pid  5632] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid  5633] <... set_robust_list resumed>) = 0
[pid  5632] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid  5633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5633] setpgid(0, 0)               = 0
[pid  5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5633] write(3, "1000", 4)         = 4
[pid  5633] close(3)                    = 0
[pid  5633] write(1, "executing program\n", 18) = 18
[pid  5633] futex(0x7f3765eeae2c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5633] rt_sigaction(SIGRT_1, {sa_handler=0x7f3765e56210, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f3765e48520}, NULL, 8) = 0
[pid  5633] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3765df0000
[pid  5633] mprotect(0x7f3765df1000, 131072, PROT_READ|PROT_WRITE) = 0
executing program
[pid  5633] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5633] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3765e10990, parent_tid=0x7f3765e10990, exit_signal=0, stack=0x7f3765df0000, stack_size=0x202c0, tls=0x7f3765e106c0}ci2-upstream-fs/strace-static-x86_64: Process 5635 attached
 <unfinished ...>
[pid  5635] 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 <unfinished ...>
[pid  5633] <... clone3 resumed> => {parent_tid=[5635]}, 88) = 5635
[pid  5635] <... rseq resumed>)         = 0
[pid  5633] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid  5635] set_robust_list(0x7f3765e109a0, 24 <unfinished ...>
[pid  5633] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid  5635] <... set_robust_list resumed>) = 0
[pid  5633] futex(0x7f3765eeae28, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5635] rt_sigprocmask(SIG_SETMASK, [] <unfinished ...>
[pid  5633] <... futex resumed>)        = 0
[pid  5635] <... rt_sigprocmask resumed>, NULL, 8) = 0
[pid  5633] futex(0x7f3765eeae2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid  5635] memfd_create("syzkaller", 0) = 3
[pid  5635] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f375d9f0000
[pid  5635] write(3, "\x2d\x72\x6f\x6d\x31\x66\x73\x2d\x00\x00\x2c\x70\x92\x52\xe6\x12\x72\x6f\x6d\x20\x36\x33\x37\x63\x66\x31\x66\x61\x00\x00\x00\x00\x00\x00\x00\x49\x00\x00\x00\x20\x00\x00\x00\x00\xd1\xff\xff\x97\x2e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe0\x00\x00\x00\x20\x00\x00\x00\x00\xd1\xd1\xff\x00\x2e\x2e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 12288) = 12288
[pid  5635] munmap(0x7f375d9f0000, 138412032) = 0
[pid  5635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid  5635] ioctl(4, LOOP_SET_FD, 3)    = 0
[pid  5635] close(3)                    = 0
[pid  5635] close(4)                    = 0
[pid  5635] mkdir("./file0", 0777)      = 0
[pid  5635] mount("/dev/loop0", "./file0", "romfs", MS_NOEXEC|MS_SILENT|MS_RELATIME, "") = 0
[pid  5635] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid  5635] chdir("./file0")            = 0
[  171.070034][ T5635] loop0: detected capacity change from 0 to 24
[pid  5635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid  5635] futex(0x7f3765eeae2c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5633] <... futex resumed>)        = 0
[pid  5635] futex(0x7f3765eeae28, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5633] futex(0x7f3765eeae28, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5635] <... futex resumed>)        = 0
[pid  5633] <... futex resumed>)        = 1
[pid  5635] openat(AT_FDCWD, "mnt", O_RDONLY <unfinished ...>
[pid  5633] futex(0x7f3765eeae2c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5633] futex(0x7f3765eeae3c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f3765dcf000
[pid  5633] mprotect(0x7f3765dd0000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5633] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5633] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f3765def990, parent_tid=0x7f3765def990, exit_signal=0, stack=0x7f3765dcf000, stack_size=0x202c0, tls=0x7f3765def6c0}ci2-upstream-fs/strace-static-x86_64: Process 5636 attached
 => {parent_tid=[5636]}, 88) = 5636
[pid  5636] 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 <unfinished ...>
[pid  5633] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5636] <... rseq resumed>)         = 0
[pid  5633] futex(0x7f3765eeae38, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5636] set_robust_list(0x7f3765def9a0, 24 <unfinished ...>
[pid  5633] <... futex resumed>)        = 0
[pid  5636] <... set_robust_list resumed>) = 0
[pid  5633] futex(0x7f3765eeae3c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5636] mkdirat(AT_FDCWD, "mnt/encrypted_dir", 0700 <unfinished ...>
[pid  5633] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5633] exit_group(0)               = ?
[pid  5632] kill(-5633, SIGKILL)        = 0
[pid  5632] kill(5633, SIGKILL)         = 0
[pid  5632] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5632] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
[pid  5632] getdents64(3, 0x555576b4b790 /* 2 entries */, 32768) = 48
[pid  5632] getdents64(3, 0x555576b4b790 /* 0 entries */, 32768) = 0
[pid  5632] close(3)                    = 0
[  430.095269][   T37] INFO: task syz-executor239:5636 blocked for more than 143 seconds.
[  430.095312][   T37]       Not tainted syzkaller #0
[  430.095324][   T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  430.095335][   T37] task:syz-executor239 state:D stack:28744 pid:5636  tgid:5633  ppid:5632   task_flags:0x400040 flags:0x00080002
[  430.095408][   T37] Call Trace:
[  430.095417][   T37]  <TASK>
[  430.095433][   T37]  __schedule+0x16d9/0x5700
[  430.095494][   T37]  ? __lock_acquire+0x747/0x2de0
[  430.095538][   T37]  ? _raw_spin_unlock_irqrestore+0x30/0x80
[  430.095581][   T37]  ? __pfx___schedule+0x10/0x10
[  430.095607][   T37]  ? lock_acquire+0x115/0x350
[  430.095645][   T37]  ? schedule+0x90/0x2b0
[  430.095677][   T37]  schedule+0x164/0x2b0
[  430.095708][   T37]  d_alloc_parallel+0xd13/0x16c0
[  430.095737][   T37]  ? __pfx_smack_log+0x10/0x10
[  430.095771][   T37]  ? d_alloc_parallel+0x3cf/0x16c0
[  430.095804][   T37]  ? __pfx_d_alloc_parallel+0x10/0x10
[  430.095833][   T37]  ? __pfx_var_wake_function+0x10/0x10
[  430.095863][   T37]  ? down_read+0x156/0x200
[  430.095893][   T37]  ? __pfx_down_read+0x10/0x10
[  430.095927][   T37]  __lookup_slow+0x82/0x2f0
[  430.095956][   T37]  lookup_slow+0x53/0x70
[  430.095981][   T37]  link_path_walk+0xd2a/0x1910
[  430.096027][   T37]  __filename_parentat+0x287/0x6f0
[  430.096059][   T37]  ? __pfx___filename_parentat+0x10/0x10
[  430.096126][   T37]  filename_create+0xd9/0x370
[  430.096157][   T37]  ? lock_acquire+0x115/0x350
[  430.096185][   T37]  ? __pfx_filename_create+0x10/0x10
[  430.096224][   T37]  filename_mkdirat+0xd2/0x520
[  430.096260][   T37]  ? __pfx_filename_mkdirat+0x10/0x10
[  430.096302][   T37]  ? do_getname+0x151/0x250
[  430.096366][   T37]  __se_sys_mkdirat+0x35/0x150
[  430.096400][   T37]  do_syscall_64+0x166/0x520
[  430.096430][   T37]  ? trace_irq_disable+0x3b/0x140
[  430.096457][   T37]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.096480][   T37]  ? clear_bhb_loop+0x70/0xc0
[  430.096508][   T37]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.096530][   T37] RIP: 0033:0x7f3765e43349
[  430.096551][   T37] RSP: 002b:00007f3765def1d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
[  430.096574][   T37] RAX: ffffffffffffffda RBX: 00007f3765eeae38 RCX: 00007f3765e43349
[  430.096591][   T37] RDX: 00000000000001c0 RSI: 0000200000000640 RDI: 00000000ffffff9c
[  430.096607][   T37] RBP: 00007f3765eeae30 R08: 00007f3765def6c0 R09: 35203a6b63617473
[  430.096623][   T37] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000640
[  430.096638][   T37] R13: 0030656c69662f2e R14: 0000200000000280 R15: 0000200000000540
[  430.096675][   T37]  </TASK>
[  430.096687][   T37] 
[  430.096687][   T37] Showing all locks held in the system:
[  430.096697][   T37] locks held by khungtaskd/37: 1, last CPU#0:
[  430.096714][   T37]  #0: ffffffff8e1c3c80 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  430.096779][   T37] locks held by kworker/u8:7/1023: 2, on CPU#0:
[  430.096794][   T37]  #0: ffff88813ff64138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  430.096855][   T37]  #1: ffffc90005277c40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  430.096926][   T37] locks held by getty/5350: 2, on CPU#1:
[  430.096941][   T37]  #0: ffff888036d190a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  430.097005][   T37]  #1: ffffc900044d62e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360
[  430.097065][   T37] locks held by syz-executor239/5635: 1, last CPU#1:
[  430.097080][   T37]  #0: ffff888045d8bda0 (&type->i_mutex_dir_key#6){.+.+}-{4:4}, at: lookup_open+0x237/0x1a60
[  430.097143][   T37] locks held by syz-executor239/5636: 1, on CPU#0:
[  430.097158][   T37]  #0: ffff888045d8bda0 (&type->i_mutex_dir_key#6){.+.+}-{4:4}, at: lookup_slow+0x46/0x70
[  430.097217][   T37] 
[  430.097222][   T37] =============================================
[  430.097222][   T37] 
[  430.097232][   T37] NMI backtrace for cpu 0
[  430.097247][   T37] CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  430.097269][   T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026
[  430.097281][   T37] Call Trace:
[  430.097298][   T37]  <TASK>
[  430.097306][   T37]  dump_stack_lvl+0xe8/0x150
[  430.097338][   T37]  nmi_cpu_backtrace+0x274/0x2d0
[  430.097363][   T37]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  430.097387][   T37]  nmi_trigger_cpumask_backtrace+0x17d/0x390
[  430.097416][   T37]  sys_info+0x135/0x170
[  430.097436][   T37]  watchdog+0xfd7/0x1030
[  430.097471][   T37]  ? watchdog+0x1c7/0x1030
[  430.097504][   T37]  kthread+0x38b/0x470
[  430.097527][   T37]  ? __pfx_watchdog+0x10/0x10
[  430.097551][   T37]  ? __pfx_kthread+0x10/0x10
[  430.097574][   T37]  ret_from_fork+0x514/0xb70
[  430.097599][   T37]  ? __pfx_ret_from_fork+0x10/0x10
[  430.097620][   T37]  ? __switch_to+0xc89/0x1420
[  430.097653][   T37]  ? __pfx_kthread+0x10/0x10
[  430.097676][   T37]  ret_from_fork_asm+0x1a/0x30
[  430.097713][   T37]  </TASK>
[  430.097722][   T37] Sending NMI from CPU 0 to CPUs 1:
[  430.097749][    C1] NMI backtrace for cpu 1
[  430.097765][    C1] CPU: 1 UID: 0 PID: 5635 Comm: syz-executor239 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  430.097783][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026
[  430.097799][    C1] RIP: 0010:__might_sleep+0x31/0xf0
[  430.097823][    C1] Code: 41 56 41 55 41 54 53 50 49 bf 00 00 00 00 00 fc ff df 65 48 8b 1d 87 17 0f 11 4c 8d 73 18 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 <84> c0 0f 85 81 00 00 00 41 8b 2e 85 ed 74 2f 48 81 c3 90 18 00 00
[  430.097837][    C1] RSP: 0018:ffffc90004c5f678 EFLAGS: 00000a02
[  430.097852][    C1] RAX: 0000000000000000 RBX: ffff88801df83e80 RCX: ffff88801df83e80
[  430.097864][    C1] RDX: 0000000000000000 RSI: 0000000000000142 RDI: ffffffff8d908f18
[  430.097875][    C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[  430.097885][    C1] R10: dffffc0000000000 R11: fffff94000154819 R12: 0000000000000400
[  430.097896][    C1] R13: 0000000000000400 R14: ffff88801df83e98 R15: dffffc0000000000
[  430.097908][    C1] FS:  00007f3765e106c0(0000) GS:ffff888125ccb000(0000) knlGS:0000000000000000
[  430.097922][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  430.097934][    C1] CR2: 00007ffd25a71f52 CR3: 000000002ec1a000 CR4: 00000000003526f0
[  430.097950][    C1] Call Trace:
[  430.097957][    C1]  <TASK>
[  430.097963][    C1]  ? bdev_getblk+0xbd/0x6e0
[  430.097987][    C1]  bdev_getblk+0xce/0x6e0
[  430.098009][    C1]  ? bdev_getblk+0xbd/0x6e0
[  430.098032][    C1]  __bread_gfp+0x89/0x380
[  430.098055][    C1]  romfs_dev_strcmp+0x3f8/0x790
[  430.098076][    C1]  ? romfs_dev_read+0x290/0x360
[  430.098098][    C1]  ? __pfx_romfs_dev_strcmp+0x10/0x10
[  430.098119][    C1]  ? __pfx_romfs_dev_read+0x10/0x10
[  430.098139][    C1]  ? romfs_lookup+0x251/0x3f0
[  430.098162][    C1]  romfs_lookup+0x232/0x3f0
[  430.098181][    C1]  ? __pfx_d_alloc_parallel+0x10/0x10
[  430.098202][    C1]  ? __pfx_romfs_lookup+0x10/0x10
[  430.098222][    C1]  ? seqcount_lockdep_reader_access+0xec/0x100
[  430.098242][    C1]  lookup_open+0x9eb/0x1a60
[  430.098272][    C1]  path_openat+0x67c/0x1d60
[  430.098299][    C1]  do_file_open+0x23e/0x4a0
[  430.098321][    C1]  ? __pfx_do_file_open+0x10/0x10
[  430.098349][    C1]  ? alloc_fd+0x654/0x6d0
[  430.098369][    C1]  do_sys_openat2+0x115/0x200
[  430.098394][    C1]  ? __pfx_do_sys_openat2+0x10/0x10
[  430.098422][    C1]  __x64_sys_openat+0x138/0x170
[  430.098440][    C1]  do_syscall_64+0x166/0x520
[  430.098460][    C1]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.098476][    C1]  ? clear_bhb_loop+0x70/0xc0
[  430.098494][    C1]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.098509][    C1] RIP: 0033:0x7f3765e43349
[  430.098524][    C1] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48
[  430.098536][    C1] RSP: 002b:00007f3765e101d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[  430.098553][    C1] RAX: ffffffffffffffda RBX: 00007f3765eeae28 RCX: 00007f3765e43349
[  430.098565][    C1] RDX: 0000000000000000 RSI: 0000200000000540 RDI: 00000000ffffff9c
[  430.098576][    C1] RBP: 00007f3765eeae20 R08: 35203a6b63617473 R09: 35203a6b63617473
[  430.098588][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000640
[  430.098598][    C1] R13: 0030656c69662f2e R14: 0000200000000280 R15: 0000200000000540
[  430.098617][    C1]  </TASK>
[  430.098746][   T37] Kernel panic - not syncing: hung_task: blocked tasks
[  430.909992][   T37] CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
[  430.919651][   T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/08/2026
[  430.929725][   T37] Call Trace:
[  430.933032][   T37]  <TASK>
[  430.935983][   T37]  vpanic+0x56d/0xa60
[  430.939995][   T37]  ? __pfx_vpanic+0x10/0x10
[  430.944523][   T37]  ? console_srcu_read_unlock+0x3a/0x60
[  430.950126][   T37]  panic+0xc5/0xd0
[  430.953870][   T37]  ? __pfx_panic+0x10/0x10
[  430.958316][   T37]  ? wq_watchdog_touch+0xf9/0x160
[  430.963372][   T37]  ? nmi_trigger_cpumask_backtrace+0x24d/0x390
[  430.969554][   T37]  watchdog+0x1030/0x1030
[  430.973927][   T37]  ? watchdog+0x1c7/0x1030
[  430.978377][   T37]  kthread+0x38b/0x470
[  430.982468][   T37]  ? __pfx_watchdog+0x10/0x10
[  430.987177][   T37]  ? __pfx_kthread+0x10/0x10
[  430.991794][   T37]  ret_from_fork+0x514/0xb70
[  430.996415][   T37]  ? __pfx_ret_from_fork+0x10/0x10
[  431.001550][   T37]  ? __switch_to+0xc89/0x1420
[  431.006265][   T37]  ? __pfx_kthread+0x10/0x10
[  431.010880][   T37]  ret_from_fork_asm+0x1a/0x30
[  431.015681][   T37]  </TASK>
[  431.018854][   T37] Kernel Offset: disabled
[  431.023176][   T37] Rebooting in 86400 seconds..