./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3445466913 <...> Warning: Permanently added '10.128.1.253' (ED25519) to the list of known hosts. execve("./syz-executor3445466913", ["./syz-executor3445466913"], 0x7ffc27f47200 /* 10 vars */) = 0 brk(NULL) = 0x55556c9d6000 brk(0x55556c9d6d40) = 0x55556c9d6d40 arch_prctl(ARCH_SET_FS, 0x55556c9d63c0) = 0 set_tid_address(0x55556c9d6690) = 5865 set_robust_list(0x55556c9d66a0, 24) = 0 rseq(0x55556c9d6ce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3445466913", 4096) = 28 getrandom("\x6f\x1d\xa8\x0c\x90\xdc\xf5\xe2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556c9d6d40 brk(0x55556c9f7d40) = 0x55556c9f7d40 brk(0x55556c9f8000) = 0x55556c9f8000 mprotect(0x7f5a9e3e2000, 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 5866 attached , child_tidptr=0x55556c9d6690) = 5866 [pid 5866] set_robust_list(0x55556c9d66a0, 24) = 0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] setpgid(0, 0) = 0 [pid 5866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1000", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] write(1, "executing program\n", 18executing program ) = 18 [pid 5866] futex(0x7f5a9e3e830c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5866] rt_sigaction(SIGRT_1, {sa_handler=0x7f5a9e3842e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5a9e375960}, NULL, 8) = 0 [pid 5866] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5a9e2f7000 [pid 5866] mprotect(0x7f5a9e2f8000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f5a9e317990, parent_tid=0x7f5a9e317990, exit_signal=0, stack=0x7f5a9e2f7000, stack_size=0x20300, tls=0x7f5a9e3176c0}./strace-static-x86_64: Process 5867 attached [pid 5867] rseq(0x7f5a9e317fe0, 0x20, 0, 0x53053053 [pid 5866] <... clone3 resumed> => {parent_tid=[5867]}, 88) = 5867 [pid 5867] <... rseq resumed>) = 0 [pid 5866] rt_sigprocmask(SIG_SETMASK, [], [pid 5867] set_robust_list(0x7f5a9e3179a0, 24 [pid 5866] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5867] <... set_robust_list resumed>) = 0 [pid 5866] futex(0x7f5a9e3e8308, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5866] <... futex resumed>) = 0 [pid 5867] openat(AT_FDCWD, "/dev/rnullb0", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE [pid 5866] futex(0x7f5a9e3e830c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] <... openat resumed>) = 3 [pid 5867] futex(0x7f5a9e3e830c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5867] futex(0x7f5a9e3e8308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5866] <... futex resumed>) = 0 [pid 5866] futex(0x7f5a9e3e8308, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5867] <... futex resumed>) = 0 [pid 5866] futex(0x7f5a9e3e830c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5867] openat(AT_FDCWD, NULL, O_WRONLY|FASYNC) = -1 EFAULT (Bad address) [pid 5867] futex(0x7f5a9e3e830c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5866] <... futex resumed>) = 0 [pid 5867] futex(0x7f5a9e3e8308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5866] futex(0x7f5a9e3e8308, FUTEX_WAKE_PRIVATE, 1000000 [pid 5867] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5866] <... futex resumed>) = 0 [pid 5867] mmap(0x200000000000, 11755520, PROT_WRITE|PROT_SEM|PROT_GROWSDOWN|PROT_GROWSUP, MAP_PRIVATE|MAP_FIXED|MAP_32BIT|MAP_LOCKED|MAP_STACK, 3, 0x93771000 [pid 5866] futex(0x7f5a9e3e830c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5866] futex(0x7f5a9e3e831c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5a9e2d6000 [pid 5866] mprotect(0x7f5a9e2d7000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5866] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5866] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f5a9e2f6990, parent_tid=0x7f5a9e2f6990, exit_signal=0, stack=0x7f5a9e2d6000, stack_size=0x20300, tls=0x7f5a9e2f66c0}./strace-static-x86_64: Process 5868 attached [pid 5868] rseq(0x7f5a9e2f6fe0, 0x20, 0, 0x53053053) = 0 [pid 5868] set_robust_list(0x7f5a9e2f69a0, 24) = 0 [pid 5868] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5866] <... clone3 resumed> => {parent_tid=[5868]}, 88) = 5868 [pid 5868] futex(0x7f5a9e3e8318, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5866] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5866] futex(0x7f5a9e3e8318, FUTEX_WAKE_PRIVATE, 1000000 [pid 5868] <... futex resumed>) = 0 [pid 5866] <... futex resumed>) = 1 [pid 5868] mremap(0x200000d59000, 4096, 4096, MREMAP_MAYMOVE|MREMAP_FIXED|MREMAP_DONTUNMAP, 0x200000a91000 [pid 5866] futex(0x7f5a9e3e831c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5866] exit_group(0) = ? [pid 5865] kill(-5866, SIGKILL) = 0 [pid 5865] kill(5866, SIGKILL) = 0 [pid 5865] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5865] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5865] getdents64(3, 0x55556c9d7730 /* 2 entries */, 32768) = 48 [pid 5865] getdents64(3, 0x55556c9d7730 /* 0 entries */, 32768) = 0 [pid 5865] close(3) = 0 [ 286.547298][ T31] INFO: task syz-executor344:5866 blocked for more than 143 seconds. [ 286.555523][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.563225][ T31] Blocked by coredump. [ 286.568136][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.577190][ T31] task:syz-executor344 state:D stack:26920 pid:5866 tgid:5866 ppid:5865 task_flags:0x40004c flags:0x00004002 [ 286.590191][ T31] Call Trace: [ 286.593519][ T31] [ 286.597243][ T31] __schedule+0x1737/0x4d30 [ 286.601879][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.607123][ T31] ? schedule+0x165/0x360 [ 286.611520][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.616789][ T31] ? __pfx___schedule+0x10/0x10 [ 286.621747][ T31] ? schedule+0x91/0x360 [ 286.626458][ T31] schedule+0x165/0x360 [ 286.630675][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.636539][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.642153][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.648246][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.654385][ T31] ? exit_mm+0xcc/0x2c0 [ 286.658977][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.663886][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.669469][ T31] down_read+0x98/0x2e0 [ 286.673735][ T31] exit_mm+0xcc/0x2c0 [ 286.678223][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.682878][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.688026][ T31] do_exit+0x648/0x2300 [ 286.692253][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.697348][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.702606][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.708416][ T31] do_group_exit+0x21c/0x2d0 [ 286.713063][ T31] __x64_sys_exit_group+0x3f/0x40 [ 286.718780][ T31] x64_sys_call+0x21f7/0x2200 [ 286.723589][ T31] do_syscall_64+0xfa/0x3b0 [ 286.728435][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.733854][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.740537][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.745280][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.751624][ T31] RIP: 0033:0x7f5a9e35c409 [ 286.756371][ T31] RSP: 002b:00007fffd7169818 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 286.764844][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5a9e35c409 [ 286.773200][ T31] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 286.781580][ T31] RBP: 00007f5a9e3e82b0 R08: ffffffffffffffb0 R09: 7fffffffffffffff [ 286.789892][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5a9e3e82b0 [ 286.798227][ T31] R13: 0000000000000000 R14: 00007f5a9e3e8e40 R15: 00007f5a9e32a210 [ 286.806518][ T31] [ 286.809645][ T31] INFO: task syz-executor344:5867 blocked for more than 143 seconds. [ 286.818060][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.825230][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.834991][ T31] task:syz-executor344 state:D stack:24392 pid:5867 tgid:5866 ppid:5865 task_flags:0x400140 flags:0x00004006 [ 286.847311][ T31] Call Trace: [ 286.850732][ T31] [ 286.853703][ T31] __schedule+0x1737/0x4d30 [ 286.858651][ T31] ? __pfx___handle_mm_fault+0x10/0x10 [ 286.864175][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.869445][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.874368][ T31] ? schedule+0x165/0x360 [ 286.879081][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.883992][ T31] ? __pfx___schedule+0x10/0x10 [ 286.889305][ T31] ? schedule+0x91/0x360 [ 286.893652][ T31] schedule+0x165/0x360 [ 286.898183][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.903709][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.909648][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.915461][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.921939][ T31] ? __mm_populate+0x16f/0x380 [ 286.927305][ T31] ? __pfx_populate_vma_page_range+0x10/0x10 [ 286.933338][ T31] ? userfaultfd_unmap_complete+0x278/0x2d0 [ 286.940460][ T31] down_read+0x98/0x2e0 [ 286.944681][ T31] __mm_populate+0x16f/0x380 [ 286.949976][ T31] ? __pfx___mm_populate+0x10/0x10 [ 286.955143][ T31] ? up_write+0x1c4/0x420 [ 286.960033][ T31] vm_mmap_pgoff+0x387/0x4d0 [ 286.964694][ T31] ? __pfx_vm_mmap_pgoff+0x10/0x10 [ 286.970401][ T31] ? __fget_files+0x2a/0x420 [ 286.975064][ T31] ? __fget_files+0x3a0/0x420 [ 286.980139][ T31] ? __fget_files+0x2a/0x420 [ 286.984886][ T31] ksys_mmap_pgoff+0x51f/0x760 [ 286.990316][ T31] do_syscall_64+0xfa/0x3b0 [ 286.994889][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.000591][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.007182][ T31] ? clear_bhb_loop+0x60/0xb0 [ 287.011929][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.018392][ T31] RIP: 0033:0x7f5a9e35e3a9 [ 287.023377][ T31] RSP: 002b:00007f5a9e317208 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 287.032747][ T31] RAX: ffffffffffffffda RBX: 00007f5a9e3e8308 RCX: 00007f5a9e35e3a9 [ 287.041174][ T31] RDX: 000000000300000a RSI: 0000000000b36000 RDI: 0000200000000000 [ 287.050155][ T31] RBP: 00007f5a9e3e8300 R08: 0000000000000003 R09: 0000000093771000 [ 287.058531][ T31] R10: 0000000000022052 R11: 0000000000000246 R12: 0000200000000140 [ 287.066958][ T31] R13: 756e722f7665642f R14: 0000200000d59000 R15: 0000200000000000 [ 287.075005][ T31] [ 287.078724][ T31] [ 287.078724][ T31] Showing all locks held in the system: [ 287.087028][ T31] 1 lock held by khungtaskd/31: [ 287.091986][ T31] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 287.102731][ T31] 2 locks held by getty/5610: [ 287.107759][ T31] #0: ffff88814d4470a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.117970][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 287.128510][ T31] 1 lock held by syz-executor344/5866: [ 287.134009][ T31] #0: ffff88805dc281e0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 287.143404][ T31] 1 lock held by syz-executor344/5867: [ 287.149272][ T31] #0: ffff88805dc281e0 (&mm->mmap_lock){++++}-{4:4}, at: __mm_populate+0x16f/0x380 [ 287.159586][ T31] 1 lock held by syz-executor344/5868: [ 287.165229][ T31] [ 287.168091][ T31] ============================================= [ 287.168091][ T31] [ 287.177081][ T31] NMI backtrace for cpu 1 [ 287.177106][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.177134][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 287.177147][ T31] Call Trace: [ 287.177154][ T31] [ 287.177162][ T31] dump_stack_lvl+0x189/0x250 [ 287.177198][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.177226][ T31] ? __pfx__printk+0x10/0x10 [ 287.177268][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 287.177296][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.177324][ T31] ? __pfx__printk+0x10/0x10 [ 287.177357][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.177383][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 287.177411][ T31] watchdog+0xf93/0xfe0 [ 287.177438][ T31] ? watchdog+0x1de/0xfe0 [ 287.177465][ T31] kthread+0x70e/0x8a0 [ 287.177498][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.177518][ T31] ? __pfx_kthread+0x10/0x10 [ 287.177549][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.177575][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.177601][ T31] ? __pfx_kthread+0x10/0x10 [ 287.177631][ T31] ret_from_fork+0x3f9/0x770 [ 287.177659][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.177689][ T31] ? __switch_to_asm+0x39/0x70 [ 287.177706][ T31] ? __switch_to_asm+0x33/0x70 [ 287.177723][ T31] ? __pfx_kthread+0x10/0x10 [ 287.177752][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.177787][ T31] [ 287.177794][ T31] Sending NMI from CPU 1 to CPUs 0: [ 287.325766][ C0] NMI backtrace for cpu 0 [ 287.325785][ C0] CPU: 0 UID: 0 PID: 5868 Comm: syz-executor344 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.325816][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 287.325827][ C0] RIP: 0010:anon_vma_interval_tree_verify+0x3a/0x150 [ 287.325859][ C0] Code: 49 bc 00 00 00 00 00 fc ff df e8 d1 08 b9 ff 48 8d 7b 40 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 ca 58 1c 00 4c 8b 73 40 <49> 89 dd 49 c1 ed 03 43 80 7c 25 00 00 74 08 48 89 df e8 af 58 1c [ 287.325873][ C0] RSP: 0018:ffffc900042c7430 EFLAGS: 00000246 [ 287.325889][ C0] RAX: 1ffff1100eb50a86 RBX: ffff888075a853f0 RCX: ffff888078e50000 [ 287.325902][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888075a85430 [ 287.325913][ C0] RBP: ffffc900042c7590 R08: ffff88805f309347 R09: 1ffff1100be61268 [ 287.325925][ C0] R10: dffffc0000000000 R11: ffffed100be61269 R12: dffffc0000000000 [ 287.325937][ C0] R13: 000000000000209f R14: 0000000200000d59 R15: ffff888075a85400 [ 287.325949][ C0] FS: 00007f5a9e2f66c0(0000) GS:ffff8881257ab000(0000) knlGS:0000000000000000 [ 287.325963][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.325975][ C0] CR2: 000055e7658a3a58 CR3: 000000007eab6000 CR4: 00000000003526f0 [ 287.325990][ C0] Call Trace: [ 287.325998][ C0] [ 287.326008][ C0] validate_mm+0x20b/0x4b0 [ 287.326035][ C0] ? __pfx_validate_mm+0x10/0x10 [ 287.326068][ C0] vma_link+0x366/0x450 [ 287.326094][ C0] ? __pfx_vma_link+0x10/0x10 [ 287.326122][ C0] ? anon_vma_clone+0x494/0x4f0 [ 287.326147][ C0] copy_vma+0x70c/0x940 [ 287.326176][ C0] ? __pfx_copy_vma+0x10/0x10 [ 287.326203][ C0] ? __pfx_move_page_tables+0x10/0x10 [ 287.326241][ C0] move_vma+0x81f/0x1840 [ 287.326264][ C0] ? __lock_acquire+0xab9/0xd20 [ 287.326293][ C0] ? arch_get_unmapped_area_topdown+0x251/0xbc0 [ 287.326317][ C0] ? __pfx_move_vma+0x10/0x10 [ 287.326350][ C0] ? __pfx_arch_get_unmapped_area_topdown+0x10/0x10 [ 287.326379][ C0] ? cap_mmap_addr+0xb0/0x100 [ 287.326401][ C0] ? bpf_lsm_mmap_addr+0x9/0x20 [ 287.326417][ C0] ? security_mmap_addr+0x71/0x270 [ 287.326442][ C0] mremap_to+0x6d6/0x7a0 [ 287.326470][ C0] ? __pfx_mremap_to+0x10/0x10 [ 287.326496][ C0] ? check_prep_vma+0x740/0xae0 [ 287.326525][ C0] __se_sys_mremap+0xa0b/0xef0 [ 287.326613][ C0] ? __pfx___se_sys_mremap+0x10/0x10 [ 287.326641][ C0] ? __pfx_ptrace_notify+0x10/0x10 [ 287.326668][ C0] ? __x64_sys_mremap+0x20/0xc0 [ 287.326693][ C0] do_syscall_64+0xfa/0x3b0 [ 287.326719][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.326735][ C0] ? __switch_to_asm+0x39/0x70 [ 287.326749][ C0] ? clear_bhb_loop+0x60/0xb0 [ 287.326769][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.326785][ C0] RIP: 0033:0x7f5a9e35e3a9 [ 287.326799][ 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 [ 287.326814][ C0] RSP: 002b:00007f5a9e2f6218 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 287.326830][ C0] RAX: ffffffffffffffda RBX: 00007f5a9e3e8318 RCX: 00007f5a9e35e3a9 [ 287.326842][ C0] RDX: 0000000000001000 RSI: 0000000000001000 RDI: 0000200000d59000 [ 287.326853][ C0] RBP: 00007f5a9e3e8310 R08: 0000200000a91000 R09: 0000000000000000 [ 287.326863][ C0] R10: 0000000000000007 R11: 0000000000000246 R12: 0000200000000140 [ 287.326874][ C0] R13: 756e722f7665642f R14: 0000200000d59000 R15: 0000200000000000 [ 287.326895][ C0] [ 287.326902][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.137 msecs [ 287.680215][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 287.687120][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.698451][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 287.708726][ T31] Call Trace: [ 287.712047][ T31] [ 287.715018][ T31] dump_stack_lvl+0x99/0x250 [ 287.719657][ T31] ? __asan_memcpy+0x40/0x70 [ 287.724291][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.729538][ T31] ? __pfx__printk+0x10/0x10 [ 287.734190][ T31] vpanic+0x281/0x750 [ 287.738215][ T31] ? __pfx_vpanic+0x10/0x10 [ 287.742852][ T31] ? preempt_schedule+0xae/0xc0 [ 287.747750][ T31] ? preempt_schedule_common+0x83/0xd0 [ 287.753251][ T31] panic+0xb9/0xc0 [ 287.757037][ T31] ? __pfx_panic+0x10/0x10 [ 287.761486][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 287.766896][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 287.773179][ T31] watchdog+0xfd2/0xfe0 [ 287.777378][ T31] ? watchdog+0x1de/0xfe0 [ 287.781756][ T31] kthread+0x70e/0x8a0 [ 287.785924][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.790632][ T31] ? __pfx_kthread+0x10/0x10 [ 287.795262][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.800504][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.805749][ T31] ? __pfx_kthread+0x10/0x10 [ 287.810381][ T31] ret_from_fork+0x3f9/0x770 [ 287.815100][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.820267][ T31] ? __switch_to_asm+0x39/0x70 [ 287.825061][ T31] ? __switch_to_asm+0x33/0x70 [ 287.829853][ T31] ? __pfx_kthread+0x10/0x10 [ 287.834489][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.839306][ T31] [ 287.842650][ T31] Kernel Offset: disabled [ 287.847007][ T31] Rebooting in 86400 seconds..