./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4051435971 <...> Warning: Permanently added '10.128.0.35' (ED25519) to the list of known hosts. execve("./syz-executor4051435971", ["./syz-executor4051435971"], 0x7ffd2b142340 /* 10 vars */) = 0 brk(NULL) = 0x55557fca4000 brk(0x55557fca4d40) = 0x55557fca4d40 arch_prctl(ARCH_SET_FS, 0x55557fca43c0) = 0 set_tid_address(0x55557fca4690) = 5848 set_robust_list(0x55557fca46a0, 24) = 0 rseq(0x55557fca4ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4051435971", 4096) = 28 getrandom("\x56\x42\xd7\x78\x70\x5d\x1d\xd5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557fca4d40 brk(0x55557fcc5d40) = 0x55557fcc5d40 brk(0x55557fcc6000) = 0x55557fcc6000 mprotect(0x7fa05c86c000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5849] set_robust_list(0x55557fca46a0, 24 [pid 5848] <... clone resumed>, child_tidptr=0x55557fca4690) = 5849 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] setpgid(0, 0) = 0 [pid 5849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1000", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] write(1, "executing program\n", 18executing program ) = 18 [pid 5849] futex(0x7fa05c87230c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5849] rt_sigaction(SIGRT_1, {sa_handler=0x7fa05c80e220, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fa05c7ff8a0}, NULL, 8) = 0 [pid 5849] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fa05c781000 [pid 5849] mprotect(0x7fa05c782000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5849] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fa05c7a1990, parent_tid=0x7fa05c7a1990, exit_signal=0, stack=0x7fa05c781000, stack_size=0x20300, tls=0x7fa05c7a16c0}./strace-static-x86_64: Process 5850 attached => {parent_tid=[5850]}, 88) = 5850 [pid 5850] rseq(0x7fa05c7a1fe0, 0x20, 0, 0x53053053 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5850] <... rseq resumed>) = 0 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] set_robust_list(0x7fa05c7a19a0, 24 [pid 5849] futex(0x7fa05c872308, FUTEX_WAKE_PRIVATE, 1000000 [pid 5850] <... set_robust_list resumed>) = 0 [pid 5850] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... futex resumed>) = 0 [pid 5850] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5850] mmap(0x200000000000, 11755520, PROT_READ|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0xb635773f04ebbee0, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE, -1, 0xf6d0f000 [pid 5849] futex(0x7fa05c87230c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5849] futex(0x7fa05c87231c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5850] <... mmap resumed>) = 0x200000000000 [pid 5849] <... mmap resumed>) = 0x7fa05c760000 [pid 5849] mprotect(0x7fa05c761000, 131072, PROT_READ|PROT_WRITE [pid 5850] futex(0x7fa05c87230c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5849] <... mprotect resumed>) = 0 [pid 5850] futex(0x7fa05c872308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5849] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5849] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fa05c780990, parent_tid=0x7fa05c780990, exit_signal=0, stack=0x7fa05c760000, stack_size=0x20300, tls=0x7fa05c7806c0}./strace-static-x86_64: Process 5851 attached [pid 5851] rseq(0x7fa05c780fe0, 0x20, 0, 0x53053053) = 0 [pid 5851] set_robust_list(0x7fa05c7809a0, 24) = 0 [pid 5851] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... clone3 resumed> => {parent_tid=[5851]}, 88) = 5851 [pid 5851] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5851] futex(0x7fa05c872318, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] futex(0x7fa05c872318, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5851] <... futex resumed>) = 0 [pid 5849] futex(0x7fa05c87231c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5851] mremap(0x200000000000, 6291458, 6291458, MREMAP_MAYMOVE|MREMAP_FIXED|MREMAP_DONTUNMAP, 0x200000a00000 [pid 5849] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5849] exit_group(0 [pid 5850] <... futex resumed>) = ? [pid 5849] <... exit_group resumed>) = ? [ 92.043344][ T24] cfg80211: failed to load regulatory.db [pid 5848] kill(-5849, SIGKILL) = 0 [pid 5848] kill(5849, SIGKILL) = 0 [pid 5848] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5848] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5848] getdents64(3, 0x55557fca5730 /* 2 entries */, 32768) = 48 [pid 5848] getdents64(3, 0x55557fca5730 /* 0 entries */, 32768) = 0 [pid 5848] close(3) = 0 [ 286.600160][ T31] INFO: task syz-executor405:5849 blocked for more than 143 seconds. [ 286.608407][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.615550][ T31] Blocked by coredump. [ 286.620264][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.629003][ T31] task:syz-executor405 state:D stack:26920 pid:5849 tgid:5849 ppid:5848 task_flags:0x40004c flags:0x00004002 [ 286.641589][ T31] Call Trace: [ 286.645070][ T31] [ 286.648297][ T31] __schedule+0x1737/0x4d30 [ 286.652879][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.658090][ T31] ? schedule+0x165/0x360 [ 286.662456][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.667329][ T31] ? __pfx___schedule+0x10/0x10 [ 286.673040][ T31] ? schedule+0x91/0x360 [ 286.677334][ T31] schedule+0x165/0x360 [ 286.682015][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.687508][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.693557][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.699547][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.705742][ T31] ? exit_mm+0xcc/0x2c0 [ 286.710237][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.715126][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.720645][ T31] down_read+0x98/0x2e0 [ 286.725007][ T31] exit_mm+0xcc/0x2c0 [ 286.729283][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.733909][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.739017][ T31] do_exit+0x648/0x2300 [ 286.743304][ T31] ? preempt_schedule_common+0x83/0xd0 [ 286.749147][ T31] ? preempt_schedule+0xae/0xc0 [ 286.754131][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.759115][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 286.764532][ T31] do_group_exit+0x21c/0x2d0 [ 286.769505][ T31] __x64_sys_exit_group+0x3f/0x40 [ 286.774572][ T31] x64_sys_call+0x21f7/0x2200 [ 286.779960][ T31] do_syscall_64+0xfa/0x3b0 [ 286.784782][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.790355][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.796464][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.801616][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.807655][ T31] RIP: 0033:0x7fa05c7e6349 [ 286.812453][ T31] RSP: 002b:00007ffc68b4feb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 286.821156][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa05c7e6349 [ 286.829383][ T31] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 286.837472][ T31] RBP: 00007fa05c8722b0 R08: ffffffffffffffb0 R09: 7fffffffffffffff [ 286.845945][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa05c8722b0 [ 286.854519][ T31] R13: 0000000000000000 R14: 00007fa05c872e40 R15: 00007fa05c7b4160 [ 286.862875][ T31] [ 286.865978][ T31] INFO: task syz-executor405:5850 blocked for more than 143 seconds. [ 286.874337][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.881704][ T31] Blocked by coredump. [ 286.886314][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.895283][ T31] task:syz-executor405 state:D stack:26024 pid:5850 tgid:5849 ppid:5848 task_flags:0x40044c flags:0x00004002 [ 286.907498][ T31] Call Trace: [ 286.911035][ T31] [ 286.914001][ T31] __schedule+0x1737/0x4d30 [ 286.918942][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.923919][ T31] ? schedule+0x165/0x360 [ 286.928554][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.933444][ T31] ? __pfx___schedule+0x10/0x10 [ 286.938631][ T31] ? schedule+0x91/0x360 [ 286.942911][ T31] schedule+0x165/0x360 [ 286.947098][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.953173][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.959003][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.964754][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.971213][ T31] ? exit_mm+0xcc/0x2c0 [ 286.975497][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.980759][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.986008][ T31] down_read+0x98/0x2e0 [ 286.990463][ T31] exit_mm+0xcc/0x2c0 [ 286.994495][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.999454][ T31] ? rcu_is_watching+0x15/0xb0 [ 287.004272][ T31] do_exit+0x648/0x2300 [ 287.008729][ T31] ? do_raw_spin_lock+0x121/0x290 [ 287.013805][ T31] ? __pfx_do_exit+0x10/0x10 [ 287.018776][ T31] do_group_exit+0x21c/0x2d0 [ 287.023400][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.029290][ T31] get_signal+0x1286/0x1340 [ 287.033874][ T31] arch_do_signal_or_restart+0x9a/0x750 [ 287.039916][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.045157][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 287.050671][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 287.057311][ T31] ? exit_to_user_mode_loop+0x40/0x110 [ 287.063114][ T31] exit_to_user_mode_loop+0x75/0x110 [ 287.068636][ T31] do_syscall_64+0x2bd/0x3b0 [ 287.073371][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.079771][ T31] ? __switch_to_asm+0x39/0x70 [ 287.084655][ T31] ? clear_bhb_loop+0x60/0xb0 [ 287.089666][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.095602][ T31] RIP: 0033:0x7fa05c7e82e9 [ 287.100327][ T31] RSP: 002b:00007fa05c7a1228 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 287.108990][ T31] RAX: fffffffffffffe00 RBX: 00007fa05c872308 RCX: 00007fa05c7e82e9 [ 287.116983][ T31] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa05c872308 [ 287.125272][ T31] RBP: 00007fa05c872300 R08: 00007fa05c7a16c0 R09: 00007fa05c7a16c0 [ 287.133511][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa05c87230c [ 287.142211][ T31] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffc68b4fe38 [ 287.150523][ T31] [ 287.154099][ T31] [ 287.154099][ T31] Showing all locks held in the system: [ 287.162182][ T31] 1 lock held by khungtaskd/31: [ 287.167105][ T31] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 287.177325][ T31] 2 locks held by getty/5604: [ 287.182266][ T31] #0: ffff88803020d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.195403][ T31] #1: ffffc9000331e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 287.205930][ T31] 1 lock held by syz-executor405/5849: [ 287.211623][ T31] #0: ffff88807d3f6d60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.220797][ T31] 1 lock held by syz-executor405/5850: [ 287.226272][ T31] #0: ffff88807d3f6d60 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.235388][ T31] 1 lock held by syz-executor405/5851: [ 287.241155][ T31] [ 287.243503][ T31] ============================================= [ 287.243503][ T31] [ 287.252941][ T31] NMI backtrace for cpu 1 [ 287.252956][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.252977][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.252988][ T31] Call Trace: [ 287.252996][ T31] [ 287.253004][ T31] dump_stack_lvl+0x189/0x250 [ 287.253040][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.253067][ T31] ? __pfx__printk+0x10/0x10 [ 287.253107][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 287.253134][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.253160][ T31] ? __pfx__printk+0x10/0x10 [ 287.253192][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.253216][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 287.253243][ T31] watchdog+0xf93/0xfe0 [ 287.253269][ T31] ? watchdog+0x1de/0xfe0 [ 287.253295][ T31] kthread+0x70e/0x8a0 [ 287.253326][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.253369][ T31] ? __pfx_kthread+0x10/0x10 [ 287.253398][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.253422][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.253446][ T31] ? __pfx_kthread+0x10/0x10 [ 287.253473][ T31] ret_from_fork+0x3f9/0x770 [ 287.253500][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.253531][ T31] ? __switch_to_asm+0x39/0x70 [ 287.253545][ T31] ? __switch_to_asm+0x33/0x70 [ 287.253560][ T31] ? __pfx_kthread+0x10/0x10 [ 287.253589][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.253624][ T31] [ 287.253631][ T31] Sending NMI from CPU 1 to CPUs 0: [ 287.402905][ C0] NMI backtrace for cpu 0 [ 287.402923][ C0] CPU: 0 UID: 0 PID: 5851 Comm: syz-executor405 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.402942][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.402951][ C0] RIP: 0010:check_preemption_disabled+0x63/0x120 [ 287.402972][ C0] Code: 08 0f 85 cc 00 00 00 48 83 c4 10 5b 41 5e 41 5f 5d e9 01 cb 02 00 cc 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <74> c8 65 4c 8b 3c 25 08 50 e7 92 41 f6 47 2f 04 74 0a 41 83 bf 18 [ 287.402984][ C0] RSP: 0018:ffffc90003ef7360 EFLAGS: 00000046 [ 287.402999][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000080000000 [ 287.403009][ C0] RDX: 0000000000000000 RSI: ffffffff8de5b067 RDI: ffffffff8c04d400 [ 287.403019][ C0] RBP: 00000000ffffffff R08: ffff88802f773c00 R09: 0000000000000004 [ 287.403029][ C0] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000246 [ 287.403038][ C0] R13: ffff88802f773c00 R14: ffff88807d3f6d60 R15: 0000000000000000 [ 287.403048][ C0] FS: 00007fa05c7806c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000 [ 287.403061][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.403071][ C0] CR2: 000055ce3f554168 CR3: 0000000074532000 CR4: 00000000003526f0 [ 287.403087][ C0] Call Trace: [ 287.403093][ C0] [ 287.403100][ C0] lock_is_held_type+0xfe/0x190 [ 287.403123][ C0] mt_validate+0x2544/0x4380 [ 287.403149][ C0] ? __pfx_mt_validate+0x10/0x10 [ 287.403179][ C0] validate_mm+0xb6/0x4b0 [ 287.403200][ C0] ? __pfx_validate_mm+0x10/0x10 [ 287.403222][ C0] ? mas_find+0xb40/0xd30 [ 287.403242][ C0] vms_complete_munmap_vmas+0x6aa/0x8a0 [ 287.403267][ C0] do_vmi_align_munmap+0x358/0x420 [ 287.403285][ C0] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.403310][ C0] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 287.403340][ C0] do_vmi_munmap+0x253/0x2e0 [ 287.403362][ C0] do_munmap+0xe1/0x140 [ 287.403378][ C0] ? __pfx_do_munmap+0x10/0x10 [ 287.403396][ C0] ? bpf_lsm_mmap_addr+0x9/0x20 [ 287.403410][ C0] ? security_mmap_addr+0x71/0x270 [ 287.403432][ C0] mremap_to+0x2df/0x7a0 [ 287.403454][ C0] ? __pfx_mremap_to+0x10/0x10 [ 287.403475][ C0] ? check_prep_vma+0x740/0xae0 [ 287.403498][ C0] __se_sys_mremap+0xa0b/0xef0 [ 287.403525][ C0] ? __pfx___se_sys_mremap+0x10/0x10 [ 287.403554][ C0] ? __pfx_ptrace_notify+0x10/0x10 [ 287.403576][ C0] ? __x64_sys_mremap+0x20/0xc0 [ 287.403595][ C0] do_syscall_64+0xfa/0x3b0 [ 287.403616][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.403630][ C0] ? __switch_to_asm+0x39/0x70 [ 287.403643][ C0] ? clear_bhb_loop+0x60/0xb0 [ 287.403659][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.403673][ C0] RIP: 0033:0x7fa05c7e82e9 [ 287.403686][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 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 [ 287.403697][ C0] RSP: 002b:00007fa05c780228 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 287.403712][ C0] RAX: ffffffffffffffda RBX: 00007fa05c872318 RCX: 00007fa05c7e82e9 [ 287.403722][ C0] RDX: 0000000000600002 RSI: 0000000000600002 RDI: 0000200000000000 [ 287.403732][ C0] RBP: 00007fa05c872310 R08: 0000200000a00000 R09: 00007fa05c7806c0 [ 287.403742][ C0] R10: 0000000000000007 R11: 0000000000000246 R12: 00007fa05c87231c [ 287.403752][ C0] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffc68b4fe38 [ 287.403769][ C0] [ 287.405720][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 287.749703][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.761160][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.771738][ T31] Call Trace: [ 287.775033][ T31] [ 287.777988][ T31] dump_stack_lvl+0x99/0x250 [ 287.782590][ T31] ? __asan_memcpy+0x40/0x70 [ 287.787187][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.792389][ T31] ? __pfx__printk+0x10/0x10 [ 287.797014][ T31] vpanic+0x281/0x750 [ 287.801005][ T31] ? __pfx_vpanic+0x10/0x10 [ 287.805520][ T31] ? preempt_schedule+0xae/0xc0 [ 287.810392][ T31] ? preempt_schedule_common+0x83/0xd0 [ 287.815860][ T31] panic+0xb9/0xc0 [ 287.819615][ T31] ? __pfx_panic+0x10/0x10 [ 287.824037][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 287.829415][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 287.835593][ T31] watchdog+0xfd2/0xfe0 [ 287.839753][ T31] ? watchdog+0x1de/0xfe0 [ 287.844085][ T31] kthread+0x70e/0x8a0 [ 287.848169][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.852847][ T31] ? __pfx_kthread+0x10/0x10 [ 287.857446][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.862646][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.867849][ T31] ? __pfx_kthread+0x10/0x10 [ 287.872445][ T31] ret_from_fork+0x3f9/0x770 [ 287.877036][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.882153][ T31] ? __switch_to_asm+0x39/0x70 [ 287.886913][ T31] ? __switch_to_asm+0x33/0x70 [ 287.891676][ T31] ? __pfx_kthread+0x10/0x10 [ 287.896270][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.901043][ T31] [ 287.904360][ T31] Kernel Offset: disabled [ 287.908681][ T31] Rebooting in 86400 seconds..