./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1440816681
<...>
Warning: Permanently added '10.128.1.106' (ED25519) to the list of known hosts.
execve("./syz-executor1440816681", ["./syz-executor1440816681"], 0x7fffa1e70ef0 /* 10 vars */) = 0
brk(NULL) = 0x555570b8e000
brk(0x555570b8ee00) = 0x555570b8ee00
arch_prctl(ARCH_SET_FS, 0x555570b8e480) = 0
set_tid_address(0x555570b8e750) = 5822
set_robust_list(0x555570b8e760, 24) = 0
rseq(0x555570b8eda0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1440816681", 4096) = 28
getrandom("\x49\xdb\x16\x79\x04\x33\xa1\x5f", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555570b8ee00
brk(0x555570bafe00) = 0x555570bafe00
brk(0x555570bb0000) = 0x555570bb0000
mprotect(0x7f4148304000, 16384, 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_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f4148249d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f4148252b10}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f4148249d70, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f4148252b10}, NULL, 8) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5824 attached
, child_tidptr=0x555570b8e750) = 5824
[pid 5824] set_robust_list(0x555570b8e760, 24) = 0
[pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5824] setpgid(0, 0) = 0
[pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5824] write(3, "1000", 4) = 4
[pid 5824] close(3) = 0
executing program
[pid 5824] write(1, "executing program\n", 18) = 18
[pid 5824] futex(0x7f414830a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5824] rt_sigaction(SIGRT_1, {sa_handler=0x7f41482a9010, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f4148252b10}, NULL, 8) = 0
[pid 5824] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid 5824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f4148217000
[pid 5824] mprotect(0x7f4148218000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4148237990, parent_tid=0x7f4148237990, exit_signal=0, stack=0x7f4148217000, stack_size=0x20240, tls=0x7f41482376c0}./strace-static-x86_64: Process 5825 attached
<unfinished ...>
[pid 5825] rseq(0x7f4148237fe0, 0x20, 0, 0x53053053) = 0
[pid 5824] <... clone3 resumed> => {parent_tid=[5825]}, 88) = 5825
[pid 5825] set_robust_list(0x7f41482379a0, 24 <unfinished ...>
[pid 5824] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5825] <... set_robust_list resumed>) = 0
[pid 5824] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5825] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5824] futex(0x7f414830a6a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5825] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5824] <... futex resumed>) = 0
[pid 5825] memfd_create("syzkaller", 0 <unfinished ...>
[pid 5824] futex(0x7f414830a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5825] <... memfd_create resumed>) = 3
[pid 5825] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f413fe00000
[pid 5825] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 524288) = 524288
[pid 5825] munmap(0x7f413fe00000, 138412032) = 0
[pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5825] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5825] close(3) = 0
[pid 5825] close(4) = 0
[pid 5825] mkdir("./file2", 0777) = 0
[ 79.094824][ T5825] loop0: detected capacity change from 0 to 1024
[ 79.119561][ T5825] =======================================================
[ 79.119561][ T5825] WARNING: The mand mount option has been deprecated and
[ 79.119561][ T5825] and is ignored by this kernel. Remove the mand
[ 79.119561][ T5825] option from the mount to silence this warning.
[ 79.119561][ T5825] =======================================================
[ 79.156251][ T5825] EXT4-fs: Ignoring removed oldalloc option
[ 79.162314][ T5825] EXT4-fs: Ignoring removed orlov option
[ 79.170609][ T5825] EXT4-fs (loop0): stripe (1570) is not aligned with cluster size (16), stripe is disabled
[pid 5825] mount("/dev/loop0", "./file2", "ext4", MS_NOSUID|MS_NODEV|MS_MANDLOCK|MS_STRICTATIME|MS_LAZYTIME, "debug_want_extra_isize=0x0000000000000080,grpjquota=,oldalloc,errors=remount-ro,orlov,usrquota,strip"...) = 0
[pid 5825] openat(AT_FDCWD, "./file2", O_RDONLY|O_DIRECTORY) = 3
[pid 5825] chdir("./file2") = 0
[pid 5825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5825] futex(0x7f414830a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5825] futex(0x7f414830a6a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f414830a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5824] futex(0x7f414830a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid 5825] renameat2(AT_FDCWD, "./file0/file0", AT_FDCWD, "./file1", RENAME_WHITEOUT) = 0
[pid 5825] futex(0x7f414830a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5825] futex(0x7f414830a6a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f414830a6a8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5825] mkdir("./bus", 0777 <unfinished ...>
[pid 5824] futex(0x7f414830a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} <unfinished ...>
[pid 5825] <... mkdir resumed>) = 0
[pid 5825] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5825] futex(0x7f414830a6ac, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid 5824] <... futex resumed>) = 0
[pid 5825] futex(0x7f414830a6a8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f414830a6a8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5824] <... futex resumed>) = 0
[pid 5825] openat(AT_FDCWD, "memory.events.local", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000 <unfinished ...>
[ 79.192504][ T5825] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
[pid 5824] futex(0x7f414830a6ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid 5824] futex(0x7f414830a6bc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid 5824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f41481f6000
[pid 5824] mprotect(0x7f41481f7000, 131072, PROT_READ|PROT_WRITE) = 0
[pid 5824] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid 5824] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f4148216990, parent_tid=0x7f4148216990, exit_signal=0, stack=0x7f41481f6000, stack_size=0x20240, tls=0x7f41482166c0}./strace-static-x86_64: Process 5829 attached
<unfinished ...>
[pid 5829] rseq(0x7f4148216fe0, 0x20, 0, 0x53053053) = 0
[pid 5829] set_robust_list(0x7f41482169a0, 24 <unfinished ...>
[pid 5824] <... clone3 resumed> => {parent_tid=[5829]}, 88) = 5829
[pid 5829] <... set_robust_list resumed>) = 0
[pid 5829] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5824] rt_sigprocmask(SIG_SETMASK, [], <unfinished ...>
[pid 5829] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5824] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid 5829] futex(0x7f414830a6b8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 5824] futex(0x7f414830a6b8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid 5829] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable)
[pid 5829] creat("./file2", 0411 <unfinished ...>
[pid 5824] <... futex resumed>) = 0
[pid 5824] futex(0x7f414830a6bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid 5824] exit_group(0) = ?
[pid 5822] kill(-5824, SIGKILL) = 0
[pid 5822] kill(5824, SIGKILL) = 0
[pid 5822] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid 5822] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0
[pid 5822] getdents64(3, 0x555570b8f7f0 /* 2 entries */, 32768) = 48
[pid 5822] getdents64(3, 0x555570b8f7f0 /* 0 entries */, 32768) = 0
[pid 5822] close(3) = 0
[ 86.916488][ T9] cfg80211: failed to load regulatory.db
[ 286.597652][ T31] INFO: task syz-executor144:5829 blocked for more than 143 seconds.
[ 286.605890][ T31] Not tainted 6.15.0-rc6-syzkaller #0
[ 286.611787][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.621370][ T31] task:syz-executor144 state:D stack:28024 pid:5829 tgid:5824 ppid:5822 task_flags:0x400040 flags:0x00004006
[ 286.633829][ T31] Call Trace:
[ 286.637349][ T31] <TASK>
[ 286.640306][ T31] __schedule+0x168f/0x4c70
[ 286.645199][ T31] ? __pfx_preempt_schedule_notrace+0x10/0x10
[ 286.651285][ T31] ? __lock_acquire+0xaac/0xd20
[ 286.656530][ T31] ? schedule+0x165/0x360
[ 286.660888][ T31] ? __pfx___schedule+0x10/0x10
[ 286.666147][ T31] ? schedule+0x91/0x360
[ 286.670418][ T31] schedule+0x165/0x360
[ 286.674902][ T31] schedule_preempt_disabled+0x13/0x30
[ 286.680381][ T31] rwsem_down_write_slowpath+0xbec/0x1030
[ 286.686470][ T31] ? rwsem_down_write_slowpath+0x7ec/0x1030
[ 286.692404][ T31] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 286.698869][ T31] ? __lock_acquire+0xaac/0xd20
[ 286.703833][ T31] ? path_openat+0x8da/0x3830
[ 286.708837][ T31] down_write+0x1ab/0x1f0
[ 286.713184][ T31] ? __pfx_down_write+0x10/0x10
[ 286.718329][ T31] ? mnt_get_write_access+0x223/0x2a0
[ 286.723734][ T31] ? mnt_want_write+0x7b/0x90
[ 286.729003][ T31] path_openat+0x8da/0x3830
[ 286.733542][ T31] ? _raw_spin_unlock_irqrestore+0xad/0x110
[ 286.740028][ T31] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 286.746622][ T31] ? rcu_is_watching+0x15/0xb0
[ 286.751415][ T31] ? __pfx_path_openat+0x10/0x10
[ 286.756734][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.762840][ T31] do_filp_open+0x1fa/0x410
[ 286.767719][ T31] ? __pfx_do_filp_open+0x10/0x10
[ 286.772789][ T31] ? _raw_spin_unlock+0x28/0x50
[ 286.778128][ T31] ? alloc_fd+0x64c/0x6c0
[ 286.782497][ T31] do_sys_openat2+0x121/0x1c0
[ 286.787555][ T31] ? __pfx_ptrace_notify+0x10/0x10
[ 286.792691][ T31] ? __pfx_do_sys_openat2+0x10/0x10
[ 286.798278][ T31] ? rcu_is_watching+0x15/0xb0
[ 286.803073][ T31] __x64_sys_creat+0x8f/0xc0
[ 286.808046][ T31] do_syscall_64+0xf6/0x210
[ 286.812574][ T31] ? ret_from_fork_asm+0x1a/0x30
[ 286.817901][ T31] ? clear_bhb_loop+0x45/0xa0
[ 286.822599][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 286.828793][ T31] RIP: 0033:0x7f4148283349
[ 286.833243][ T31] RSP: 002b:00007f4148216168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 286.841943][ T31] RAX: ffffffffffffffda RBX: 00007f414830a6b8 RCX: 00007f4148283349
[ 286.850800][ T31] RDX: ffffffffffffffb0 RSI: 0000000000000109 RDI: 0000200000000080
[ 286.859044][ T31] RBP: 00007f414830a6b0 R08: 00007f41482166c0 R09: 0000000000000000
[ 286.867302][ T31] R10: 00007ffd44bf0d47 R11: 0000000000000246 R12: 00007f414830a6bc
[ 286.875528][ T31] R13: 000000000000006e R14: 00007ffd44bf0c60 R15: 00007ffd44bf0d48
[ 286.883532][ T31] </TASK>
[ 286.886911][ T31]
[ 286.886911][ T31] Showing all locks held in the system:
[ 286.894946][ T31] 1 lock held by khungtaskd/31:
[ 286.899802][ T31] #0: ffffffff8df3d860 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 286.910048][ T31] 2 locks held by getty/5582:
[ 286.914949][ T31] #0: ffff888030fdb0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 286.924992][ T31] #1: ffffc9000333b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
[ 286.935345][ T31] 3 locks held by syz-executor144/5825:
[ 286.940893][ T31] 2 locks held by syz-executor144/5829:
[ 286.946765][ T31] #0: ffff888030c72420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
[ 286.956391][ T31] #1: ffff888075c88e20 (&type->i_mutex_dir_key#3){++++}-{4:4}, at: path_openat+0x8da/0x3830
[ 286.967080][ T31]
[ 286.969415][ T31] =============================================
[ 286.969415][ T31]
[ 286.978257][ T31] NMI backtrace for cpu 0
[ 286.978277][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc6-syzkaller #0 PREEMPT(full)
[ 286.978295][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 286.978304][ T31] Call Trace:
[ 286.978311][ T31] <TASK>
[ 286.978317][ T31] dump_stack_lvl+0x189/0x250
[ 286.978340][ T31] ? __wake_up_klogd+0xd9/0x110
[ 286.978359][ T31] ? __pfx_dump_stack_lvl+0x10/0x10
[ 286.978380][ T31] ? __pfx__printk+0x10/0x10
[ 286.978414][ T31] nmi_cpu_backtrace+0x39e/0x3d0
[ 286.978441][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 286.978461][ T31] ? _printk+0xcf/0x120
[ 286.978488][ T31] ? __pfx__printk+0x10/0x10
[ 286.978512][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 286.978538][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 286.978564][ T31] watchdog+0xfee/0x1030
[ 286.978584][ T31] ? watchdog+0x1de/0x1030
[ 286.978610][ T31] kthread+0x70e/0x8a0
[ 286.978630][ T31] ? __pfx_watchdog+0x10/0x10
[ 286.978647][ T31] ? __pfx_kthread+0x10/0x10
[ 286.978665][ T31] ? __pfx_kthread+0x10/0x10
[ 286.978681][ T31] ? _raw_spin_unlock_irq+0x23/0x50
[ 286.978697][ T31] ? lockdep_hardirqs_on+0x9c/0x150
[ 286.978715][ T31] ? __pfx_kthread+0x10/0x10
[ 286.978731][ T31] ret_from_fork+0x4b/0x80
[ 286.978745][ T31] ? __pfx_kthread+0x10/0x10
[ 286.978762][ T31] ret_from_fork_asm+0x1a/0x30
[ 286.978798][ T31] </TASK>
[ 286.978804][ T31] Sending NMI from CPU 0 to CPUs 1:
[ 287.123825][ C1] NMI backtrace for cpu 1
[ 287.123841][ C1] CPU: 1 UID: 0 PID: 5825 Comm: syz-executor144 Not tainted 6.15.0-rc6-syzkaller #0 PREEMPT(full)
[ 287.123860][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 287.123869][ C1] RIP: 0010:lock_is_held_type+0x118/0x190
[ 287.123892][ C1] Code: 01 00 00 00 48 c7 c7 f6 19 92 8d e8 92 17 00 00 b8 ff ff ff ff 65 0f c1 05 d5 80 23 07 83 f8 01 75 44 48 c7 04 24 00 00 00 00 <9c> 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01
[ 287.123904][ C1] RSP: 0018:ffffc9000403ef98 EFLAGS: 00000046
[ 287.123918][ C1] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 7a94456ac6f02c00
[ 287.123929][ C1] RDX: 0000000000000000 RSI: ffffffff8d9219f6 RDI: ffffffff8bc0ffa0
[ 287.123939][ C1] RBP: 00000000ffffffff R08: ffff888030c70387 R09: 1ffff1100618e070
[ 287.123950][ C1] R10: dffffc0000000000 R11: ffffed100618e071 R12: 0000000000000246
[ 287.123961][ C1] R13: ffff888045d91e00 R14: ffffffff8df3d920 R15: 0000000000000003
[ 287.123972][ C1] FS: 00007f41482376c0(0000) GS:ffff8881261fb000(0000) knlGS:0000000000000000
[ 287.123985][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 287.123996][ C1] CR2: 0000558855da53f0 CR3: 000000007dc58000 CR4: 00000000003526f0
[ 287.124010][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 287.124018][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 287.124028][ C1] Call Trace:
[ 287.124035][ C1] <TASK>
[ 287.124044][ C1] __might_resched+0xf5/0x610
[ 287.124072][ C1] ? __pfx___might_resched+0x10/0x10
[ 287.124094][ C1] ? do_raw_spin_unlock+0x122/0x240
[ 287.124113][ C1] __ext4_mark_inode_dirty+0x90/0x700
[ 287.124128][ C1] ? ext4_journal_check_start+0x1cf/0x2b0
[ 287.124149][ C1] ? __ext4_journal_start_sb+0x27e/0x5c0
[ 287.124170][ C1] ext4_dirty_inode+0xd0/0x110
[ 287.124189][ C1] ? __pfx_ext4_dirty_inode+0x10/0x10
[ 287.124208][ C1] __mark_inode_dirty+0x2ce/0xdf0
[ 287.124226][ C1] ext4_xattr_block_set+0x148e/0x2ac0
[ 287.124262][ C1] ? __pfx_ext4_xattr_block_set+0x10/0x10
[ 287.124279][ C1] ? ext4_xattr_ibody_set+0x100/0x6a0
[ 287.124306][ C1] ext4_xattr_set_handle+0xdfb/0x1590
[ 287.124331][ C1] ? __pfx_ext4_xattr_set_handle+0x10/0x10
[ 287.124353][ C1] ? smack_inode_init_security+0x631/0x760
[ 287.124376][ C1] ext4_initxattrs+0x9f/0x110
[ 287.124392][ C1] security_inode_init_security+0x29d/0x3f0
[ 287.124415][ C1] ? __pfx_ext4_initxattrs+0x10/0x10
[ 287.124430][ C1] ? __pfx_security_inode_init_security+0x10/0x10
[ 287.124452][ C1] ? _raw_spin_unlock+0x28/0x50
[ 287.124465][ C1] ? insert_inode_locked+0x39a/0x410
[ 287.124483][ C1] __ext4_new_inode+0x3257/0x3bd0
[ 287.124512][ C1] ? __pfx___ext4_new_inode+0x10/0x10
[ 287.124533][ C1] ? __pfx___dquot_initialize+0x10/0x10
[ 287.124554][ C1] ? d_splice_alias+0x111/0x330
[ 287.124572][ C1] ? ext4_lookup+0x2b9/0x6c0
[ 287.124587][ C1] ext4_create+0x22d/0x460
[ 287.124607][ C1] ? __pfx_ext4_create+0x10/0x10
[ 287.124623][ C1] ? bpf_lsm_inode_create+0x9/0x20
[ 287.124638][ C1] ? __pfx_ext4_create+0x10/0x10
[ 287.124651][ C1] path_openat+0x14f1/0x3830
[ 287.124668][ C1] ? arch_stack_walk+0xfc/0x150
[ 287.124701][ C1] ? __pfx_path_openat+0x10/0x10
[ 287.124717][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 287.124741][ C1] do_filp_open+0x1fa/0x410
[ 287.124760][ C1] ? __pfx_do_filp_open+0x10/0x10
[ 287.124787][ C1] ? _raw_spin_unlock+0x28/0x50
[ 287.124800][ C1] ? alloc_fd+0x64c/0x6c0
[ 287.124825][ C1] do_sys_openat2+0x121/0x1c0
[ 287.124843][ C1] ? __pfx_do_sys_openat2+0x10/0x10
[ 287.124861][ C1] ? rcu_is_watching+0x15/0xb0
[ 287.124885][ C1] __x64_sys_openat+0x138/0x170
[ 287.124903][ C1] do_syscall_64+0xf6/0x210
[ 287.124922][ C1] ? clear_bhb_loop+0x45/0xa0
[ 287.124940][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 287.124954][ C1] RIP: 0033:0x7f4148283349
[ 287.124969][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
[ 287.124980][ C1] RSP: 002b:00007f4148237168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 287.124996][ C1] RAX: ffffffffffffffda RBX: 00007f414830a6a8 RCX: 00007f4148283349
[ 287.125006][ C1] RDX: 000000000000275a RSI: 0000200000000840 RDI: 00000000ffffff9c
[ 287.125016][ C1] RBP: 00007f414830a6a0 R08: 00007f41482376c0 R09: 0000000000000000
[ 287.125027][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f414830a6ac
[ 287.125036][ C1] R13: 0000000000000006 R14: 00007ffd44bf0c60 R15: 00007ffd44bf0d48
[ 287.125053][ C1] </TASK>
[ 287.125060][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.235 msecs
[ 287.581928][ T31] Kernel panic - not syncing: hung_task: blocked tasks
[ 287.588794][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc6-syzkaller #0 PREEMPT(full)
[ 287.598865][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 287.608922][ T31] Call Trace:
[ 287.612206][ T31] <TASK>
[ 287.615151][ T31] dump_stack_lvl+0x99/0x250
[ 287.619751][ T31] ? __asan_memcpy+0x40/0x70
[ 287.624357][ T31] ? __pfx_dump_stack_lvl+0x10/0x10
[ 287.629566][ T31] ? __pfx__printk+0x10/0x10
[ 287.634182][ T31] panic+0x2db/0x790
[ 287.638127][ T31] ? __pfx_panic+0x10/0x10
[ 287.642550][ T31] ? tick_nohz_tick_stopped+0x86/0xb0
[ 287.647940][ T31] ? preempt_schedule_thunk+0x16/0x30
[ 287.653316][ T31] ? nmi_trigger_cpumask_backtrace+0x2b6/0x300
[ 287.659488][ T31] watchdog+0x102d/0x1030
[ 287.663827][ T31] ? watchdog+0x1de/0x1030
[ 287.668268][ T31] kthread+0x70e/0x8a0
[ 287.672342][ T31] ? __pfx_watchdog+0x10/0x10
[ 287.677018][ T31] ? __pfx_kthread+0x10/0x10
[ 287.681610][ T31] ? __pfx_kthread+0x10/0x10
[ 287.686200][ T31] ? _raw_spin_unlock_irq+0x23/0x50
[ 287.691395][ T31] ? lockdep_hardirqs_on+0x9c/0x150
[ 287.696596][ T31] ? __pfx_kthread+0x10/0x10
[ 287.701181][ T31] ret_from_fork+0x4b/0x80
[ 287.705596][ T31] ? __pfx_kthread+0x10/0x10
[ 287.710187][ T31] ret_from_fork_asm+0x1a/0x30
[ 287.714974][ T31] </TASK>
[ 287.718246][ T31] Kernel Offset: disabled
[ 287.722589][ T31] Rebooting in 86400 seconds..