./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3931491459 <...> Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts. execve("./syz-executor3931491459", ["./syz-executor3931491459"], 0x7ffceb42d920 /* 10 vars */) = 0 brk(NULL) = 0x55558c232000 brk(0x55558c232d40) = 0x55558c232d40 arch_prctl(ARCH_SET_FS, 0x55558c2323c0) = 0 set_tid_address(0x55558c232690) = 5873 set_robust_list(0x55558c2326a0, 24) = 0 rseq(0x55558c232ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3931491459", 4096) = 28 getrandom("\x46\x6b\x30\x11\x8c\x5e\x90\x6a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558c232d40 brk(0x55558c253d40) = 0x55558c253d40 brk(0x55558c254000) = 0x55558c254000 mprotect(0x7f4764669000, 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 5874 attached [pid 5874] set_robust_list(0x55558c2326a0, 24 [pid 5873] <... clone resumed>, child_tidptr=0x55558c232690) = 5874 [pid 5874] <... set_robust_list resumed>) = 0 [pid 5874] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5874] setpgid(0, 0) = 0 [pid 5874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5874] write(3, "1000", 4) = 4 [pid 5874] close(3) = 0 [pid 5874] write(1, "executing program\n", 18executing program ) = 18 [pid 5874] futex(0x7f476466f30c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5874] rt_sigaction(SIGRT_1, {sa_handler=0x7f476460b220, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f47645fc8a0}, NULL, 8) = 0 [pid 5874] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f476457e000 [pid 5874] mprotect(0x7f476457f000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f476459e990, parent_tid=0x7f476459e990, exit_signal=0, stack=0x7f476457e000, stack_size=0x20300, tls=0x7f476459e6c0}./strace-static-x86_64: Process 5875 attached => {parent_tid=[5875]}, 88) = 5875 [pid 5875] rseq(0x7f476459efe0, 0x20, 0, 0x53053053) = 0 [pid 5874] rt_sigprocmask(SIG_SETMASK, [], [pid 5875] set_robust_list(0x7f476459e9a0, 24 [pid 5874] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5875] <... set_robust_list resumed>) = 0 [pid 5874] futex(0x7f476466f308, FUTEX_WAKE_PRIVATE, 1000000 [pid 5875] rt_sigprocmask(SIG_SETMASK, [], [pid 5874] <... futex resumed>) = 0 [pid 5875] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5875] mmap(0x200000000000, 11755520, PROT_READ|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0xb635773f04ebbee0, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE, -1, 0xf6d0f000 [pid 5874] futex(0x7f476466f30c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5874] futex(0x7f476466f31c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5875] <... mmap resumed>) = 0x200000000000 [pid 5874] <... mmap resumed>) = 0x7f476455d000 [pid 5875] futex(0x7f476466f30c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5874] mprotect(0x7f476455e000, 131072, PROT_READ|PROT_WRITE [pid 5875] futex(0x7f476466f308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5874] <... mprotect resumed>) = 0 [pid 5874] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5874] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f476457d990, parent_tid=0x7f476457d990, exit_signal=0, stack=0x7f476455d000, stack_size=0x20300, tls=0x7f476457d6c0}./strace-static-x86_64: Process 5876 attached => {parent_tid=[5876]}, 88) = 5876 [pid 5876] rseq(0x7f476457dfe0, 0x20, 0, 0x53053053 [pid 5874] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5876] <... rseq resumed>) = 0 [pid 5874] futex(0x7f476466f318, FUTEX_WAKE_PRIVATE, 1000000 [pid 5876] set_robust_list(0x7f476457d9a0, 24 [pid 5874] <... futex resumed>) = 0 [pid 5876] <... set_robust_list resumed>) = 0 [pid 5874] futex(0x7f476466f31c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5876] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5876] mremap(0x200000000000, 6291458, 6291458, MREMAP_MAYMOVE|MREMAP_FIXED|MREMAP_DONTUNMAP, 0x200000a00000 [pid 5874] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5874] exit_group(0) = ? [pid 5875] <... futex resumed>) = ? [pid 5873] kill(-5874, SIGKILL) = 0 [pid 5873] kill(5874, SIGKILL) = 0 [pid 5873] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5873] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5873] getdents64(3, 0x55558c233730 /* 2 entries */, 32768) = 48 [pid 5873] getdents64(3, 0x55558c233730 /* 0 entries */, 32768) = 0 [pid 5873] close(3) = 0 [ 286.456733][ T31] INFO: task syz-executor393:5874 blocked for more than 143 seconds. [ 286.464897][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.472923][ T31] Blocked by coredump. [ 286.477798][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.486791][ T31] task:syz-executor393 state:D stack:26920 pid:5874 tgid:5874 ppid:5873 task_flags:0x40004c flags:0x00004002 [ 286.499058][ T31] Call Trace: [ 286.502356][ T31] [ 286.505734][ T31] __schedule+0x1737/0x4d30 [ 286.510302][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.515172][ T31] ? schedule+0x165/0x360 [ 286.520130][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.525020][ T31] ? __pfx___schedule+0x10/0x10 [ 286.533393][ T31] ? schedule+0x91/0x360 [ 286.537965][ T31] schedule+0x165/0x360 [ 286.542143][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.548087][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.553650][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.559799][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.566204][ T31] ? exit_mm+0xcc/0x2c0 [ 286.570386][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.575657][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.580892][ T31] down_read+0x98/0x2e0 [ 286.585073][ T31] exit_mm+0xcc/0x2c0 [ 286.589691][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.594315][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.599518][ T31] do_exit+0x648/0x2300 [ 286.603715][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.608722][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.613945][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.619562][ T31] do_group_exit+0x21c/0x2d0 [ 286.624192][ T31] __x64_sys_exit_group+0x3f/0x40 [ 286.629671][ T31] x64_sys_call+0x21f7/0x2200 [ 286.634360][ T31] do_syscall_64+0xfa/0x3b0 [ 286.639942][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.645171][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.651714][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.656687][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.662599][ T31] RIP: 0033:0x7f47645e3349 [ 286.667461][ T31] RSP: 002b:00007ffc5c9c16d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 286.676267][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f47645e3349 [ 286.684258][ T31] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 286.692795][ T31] RBP: 00007f476466f2b0 R08: ffffffffffffffb0 R09: 7fffffffffffffff [ 286.701149][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f476466f2b0 [ 286.709546][ T31] R13: 0000000000000000 R14: 00007f476466fe40 R15: 00007f47645b1160 [ 286.717861][ T31] [ 286.720990][ T31] INFO: task syz-executor393:5875 blocked for more than 143 seconds. [ 286.729456][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.737853][ T31] Blocked by coredump. [ 286.742452][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.754442][ T31] task:syz-executor393 state:D stack:26024 pid:5875 tgid:5874 ppid:5873 task_flags:0x40044c flags:0x00004002 [ 286.766770][ T31] Call Trace: [ 286.770062][ T31] [ 286.773008][ T31] __schedule+0x1737/0x4d30 [ 286.778104][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.782995][ T31] ? schedule+0x165/0x360 [ 286.787764][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.792638][ T31] ? __pfx___schedule+0x10/0x10 [ 286.797916][ T31] ? schedule+0x91/0x360 [ 286.802186][ T31] schedule+0x165/0x360 [ 286.806767][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.812245][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.818209][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.823953][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.830467][ T31] ? exit_mm+0xcc/0x2c0 [ 286.834650][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.839928][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.845160][ T31] down_read+0x98/0x2e0 [ 286.849756][ T31] exit_mm+0xcc/0x2c0 [ 286.853853][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.859269][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.864066][ T31] do_exit+0x648/0x2300 [ 286.868657][ T31] ? do_raw_spin_lock+0x121/0x290 [ 286.873708][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.878737][ T31] do_group_exit+0x21c/0x2d0 [ 286.883343][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.888974][ T31] get_signal+0x1286/0x1340 [ 286.893520][ T31] arch_do_signal_or_restart+0x9a/0x750 [ 286.899503][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.904730][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.910543][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 286.917542][ T31] ? exit_to_user_mode_loop+0x40/0x110 [ 286.923063][ T31] exit_to_user_mode_loop+0x75/0x110 [ 286.928795][ T31] do_syscall_64+0x2bd/0x3b0 [ 286.933424][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.939972][ T31] ? __switch_to_asm+0x39/0x70 [ 286.944767][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.949975][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.956184][ T31] RIP: 0033:0x7f47645e52e9 [ 286.960620][ T31] RSP: 002b:00007f476459e228 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 286.969865][ T31] RAX: fffffffffffffe00 RBX: 00007f476466f308 RCX: 00007f47645e52e9 [ 286.978149][ T31] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f476466f308 [ 286.986431][ T31] RBP: 00007f476466f300 R08: 00007f476459e6c0 R09: 00007f476459e6c0 [ 286.994422][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f476466f30c [ 287.002819][ T31] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffc5c9c1658 [ 287.011126][ T31] [ 287.014197][ T31] [ 287.014197][ T31] Showing all locks held in the system: [ 287.022436][ T31] 1 lock held by ksoftirqd/0/15: [ 287.027701][ T31] 1 lock held by khungtaskd/31: [ 287.032567][ T31] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 287.042908][ T31] 2 locks held by getty/5612: [ 287.047871][ T31] #0: ffff88814dba80a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.057976][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 287.068400][ T31] 1 lock held by syz-executor393/5874: [ 287.073862][ T31] #0: ffff888078c04260 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.083486][ T31] 1 lock held by syz-executor393/5875: [ 287.089206][ T31] #0: ffff888078c04260 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.098390][ T31] 1 lock held by syz-executor393/5876: [ 287.103916][ T31] [ 287.107622][ T31] ============================================= [ 287.107622][ T31] [ 287.116444][ T31] NMI backtrace for cpu 1 [ 287.116466][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.116486][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.116495][ T31] Call Trace: [ 287.116502][ T31] [ 287.116509][ T31] dump_stack_lvl+0x189/0x250 [ 287.116536][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.116555][ T31] ? __pfx__printk+0x10/0x10 [ 287.116585][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 287.116606][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.116633][ T31] ? __pfx__printk+0x10/0x10 [ 287.116655][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.116674][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 287.116694][ T31] watchdog+0xf93/0xfe0 [ 287.116716][ T31] ? watchdog+0x1de/0xfe0 [ 287.116735][ T31] kthread+0x70e/0x8a0 [ 287.116757][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.116772][ T31] ? __pfx_kthread+0x10/0x10 [ 287.116792][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.116810][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.116827][ T31] ? __pfx_kthread+0x10/0x10 [ 287.116847][ T31] ret_from_fork+0x3f9/0x770 [ 287.116865][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.116886][ T31] ? __switch_to_asm+0x39/0x70 [ 287.116899][ T31] ? __switch_to_asm+0x33/0x70 [ 287.116910][ T31] ? __pfx_kthread+0x10/0x10 [ 287.116930][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.116958][ T31] [ 287.116964][ T31] Sending NMI from CPU 1 to CPUs 0: [ 287.264082][ C0] NMI backtrace for cpu 0 [ 287.264098][ C0] CPU: 0 UID: 0 PID: 5876 Comm: syz-executor393 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.264116][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.264125][ C0] RIP: 0010:mas_prev_slot+0x33a/0xbb0 [ 287.264148][ C0] Code: 89 32 44 0f b6 f3 31 ff 44 89 f6 e8 b0 94 48 f6 84 db 0f 84 d7 03 00 00 e8 a3 91 48 f6 b8 ff ff ff ff 41 01 c6 48 8b 44 24 10 <4a> 8d 1c f0 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 [ 287.264159][ C0] RSP: 0018:ffffc90004357528 EFLAGS: 00000213 [ 287.264173][ C0] RAX: ffff88807c140208 RBX: 0000000000000002 RCX: ffff8880796a3c00 [ 287.264184][ C0] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 287.264193][ C0] RBP: 0000000000000001 R08: ffff8880796a3c00 R09: 0000000000000003 [ 287.264202][ C0] R10: 0000000000000003 R11: 0000000000000000 R12: dffffc0000000000 [ 287.264211][ C0] R13: ffff88807c140200 R14: 0000000000000001 R15: ffffc90004357a60 [ 287.264221][ C0] FS: 00007f476457d6c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000 [ 287.264234][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.264244][ C0] CR2: 000055ff12de3168 CR3: 00000000710f2000 CR4: 00000000003526f0 [ 287.264257][ C0] Call Trace: [ 287.264262][ C0] [ 287.264276][ C0] vms_gather_munmap_vmas+0x209/0x12b0 [ 287.264296][ C0] ? move_page_tables+0x57a/0x1f50 [ 287.264316][ C0] ? move_page_tables+0x1da5/0x1f50 [ 287.264338][ C0] ? __pfx_vms_gather_munmap_vmas+0x10/0x10 [ 287.264358][ C0] ? move_page_tables+0x57a/0x1f50 [ 287.264376][ C0] ? __pfx_copy_vma+0x10/0x10 [ 287.264396][ C0] do_vmi_align_munmap+0x25d/0x420 [ 287.264413][ C0] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.264438][ C0] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 287.264469][ C0] do_vmi_munmap+0x253/0x2e0 [ 287.264489][ C0] do_munmap+0xe1/0x140 [ 287.264504][ C0] ? __pfx_do_munmap+0x10/0x10 [ 287.264522][ C0] ? bpf_lsm_mmap_addr+0x9/0x20 [ 287.264535][ C0] ? security_mmap_addr+0x71/0x270 [ 287.264556][ C0] mremap_to+0x2df/0x7a0 [ 287.264577][ C0] ? __pfx_mremap_to+0x10/0x10 [ 287.264597][ C0] ? check_prep_vma+0x740/0xae0 [ 287.264625][ C0] __se_sys_mremap+0xa0b/0xef0 [ 287.264652][ C0] ? __pfx___se_sys_mremap+0x10/0x10 [ 287.264672][ C0] ? __pfx_ptrace_notify+0x10/0x10 [ 287.264695][ C0] ? __x64_sys_mremap+0x20/0xc0 [ 287.264712][ C0] do_syscall_64+0xfa/0x3b0 [ 287.264731][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.264744][ C0] ? __switch_to_asm+0x39/0x70 [ 287.264758][ C0] ? clear_bhb_loop+0x60/0xb0 [ 287.264773][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.264787][ C0] RIP: 0033:0x7f47645e52e9 [ 287.264800][ 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 [ 287.264811][ C0] RSP: 002b:00007f476457d228 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 287.264825][ C0] RAX: ffffffffffffffda RBX: 00007f476466f318 RCX: 00007f47645e52e9 [ 287.264835][ C0] RDX: 0000000000600002 RSI: 0000000000600002 RDI: 0000200000000000 [ 287.264845][ C0] RBP: 00007f476466f310 R08: 0000200000a00000 R09: 00007f476457d6c0 [ 287.264855][ C0] R10: 0000000000000007 R11: 0000000000000246 R12: 00007f476466f31c [ 287.264863][ C0] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffc5c9c1658 [ 287.264882][ C0] [ 287.597109][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 287.603969][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.615252][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.625313][ T31] Call Trace: [ 287.628603][ T31] [ 287.631535][ T31] dump_stack_lvl+0x99/0x250 [ 287.636140][ T31] ? __asan_memcpy+0x40/0x70 [ 287.640742][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.645951][ T31] ? __pfx__printk+0x10/0x10 [ 287.650564][ T31] vpanic+0x281/0x750 [ 287.654558][ T31] ? __pfx_vpanic+0x10/0x10 [ 287.659067][ T31] ? preempt_schedule+0xae/0xc0 [ 287.663926][ T31] ? preempt_schedule_common+0x83/0xd0 [ 287.669400][ T31] panic+0xb9/0xc0 [ 287.673127][ T31] ? __pfx_panic+0x10/0x10 [ 287.677561][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 287.683039][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 287.689209][ T31] watchdog+0xfd2/0xfe0 [ 287.693389][ T31] ? watchdog+0x1de/0xfe0 [ 287.697743][ T31] kthread+0x70e/0x8a0 [ 287.701839][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.706535][ T31] ? __pfx_kthread+0x10/0x10 [ 287.711248][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.716461][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.721690][ T31] ? __pfx_kthread+0x10/0x10 [ 287.726298][ T31] ret_from_fork+0x3f9/0x770 [ 287.730904][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.736037][ T31] ? __switch_to_asm+0x39/0x70 [ 287.740816][ T31] ? __switch_to_asm+0x33/0x70 [ 287.745589][ T31] ? __pfx_kthread+0x10/0x10 [ 287.750191][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.754977][ T31] [ 287.758247][ T31] Kernel Offset: disabled [ 287.762572][ T31] Rebooting in 86400 seconds..