./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2612655355 <...> Warning: Permanently added '10.128.1.246' (ED25519) to the list of known hosts. [ 91.721819][ T10] cfg80211: failed to load regulatory.db execve("./syz-executor2612655355", ["./syz-executor2612655355"], 0x7ffe79531990 /* 10 vars */) = 0 brk(NULL) = 0x55558ae3a000 brk(0x55558ae3ad40) = 0x55558ae3ad40 arch_prctl(ARCH_SET_FS, 0x55558ae3a3c0) = 0 set_tid_address(0x55558ae3a690) = 5857 set_robust_list(0x55558ae3a6a0, 24) = 0 rseq(0x55558ae3ace0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2612655355", 4096) = 28 getrandom("\xa3\xca\x00\x76\xf3\x43\xe5\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558ae3ad40 brk(0x55558ae5bd40) = 0x55558ae5bd40 brk(0x55558ae5c000) = 0x55558ae5c000 mprotect(0x7f93f3881000, 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 5858 attached [pid 5858] set_robust_list(0x55558ae3a6a0, 24 [pid 5857] <... clone resumed>, child_tidptr=0x55558ae3a690) = 5858 [pid 5858] <... set_robust_list resumed>) = 0 [pid 5858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5858] setpgid(0, 0) = 0 [pid 5858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5858] write(3, "1000", 4) = 4 [pid 5858] close(3) = 0 executing program [pid 5858] write(1, "executing program\n", 18) = 18 [pid 5858] futex(0x7f93f388730c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] rt_sigaction(SIGRT_1, {sa_handler=0x7f93f3823220, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f93f38148a0}, NULL, 8) = 0 [pid 5858] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f93f3796000 [pid 5858] mprotect(0x7f93f3797000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f93f37b6990, parent_tid=0x7f93f37b6990, exit_signal=0, stack=0x7f93f3796000, stack_size=0x20300, tls=0x7f93f37b66c0}./strace-static-x86_64: Process 5859 attached [pid 5859] rseq(0x7f93f37b6fe0, 0x20, 0, 0x53053053) = 0 [pid 5859] set_robust_list(0x7f93f37b69a0, 24) = 0 [pid 5859] rt_sigprocmask(SIG_SETMASK, [], [pid 5858] <... clone3 resumed> => {parent_tid=[5859]}, 88) = 5859 [pid 5859] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5858] rt_sigprocmask(SIG_SETMASK, [], [pid 5859] futex(0x7f93f3887308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5858] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5858] futex(0x7f93f3887308, FUTEX_WAKE_PRIVATE, 1000000 [pid 5859] <... futex resumed>) = 0 [pid 5858] <... futex resumed>) = 1 [pid 5859] mmap(0x200000000000, 11755520, PROT_READ|PROT_EXEC|PROT_SEM|PROT_GROWSUP|0xb635773f04ebbee0, MAP_SHARED|MAP_FIXED|MAP_ANONYMOUS|MAP_POPULATE, -1, 0xf6d0f000 [pid 5858] futex(0x7f93f388730c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5858] futex(0x7f93f388731c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5859] <... mmap resumed>) = 0x200000000000 [pid 5858] <... mmap resumed>) = 0x7f93f3775000 [pid 5858] mprotect(0x7f93f3776000, 131072, PROT_READ|PROT_WRITE [pid 5859] futex(0x7f93f388730c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5858] <... mprotect resumed>) = 0 [pid 5859] futex(0x7f93f3887308, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5858] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5858] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f93f3795990, parent_tid=0x7f93f3795990, exit_signal=0, stack=0x7f93f3775000, stack_size=0x20300, tls=0x7f93f37956c0}./strace-static-x86_64: Process 5860 attached => {parent_tid=[5860]}, 88) = 5860 [pid 5860] rseq(0x7f93f3795fe0, 0x20, 0, 0x53053053 [pid 5858] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5860] <... rseq resumed>) = 0 [pid 5858] futex(0x7f93f3887318, FUTEX_WAKE_PRIVATE, 1000000 [pid 5860] set_robust_list(0x7f93f37959a0, 24 [pid 5858] <... futex resumed>) = 0 [pid 5860] <... set_robust_list resumed>) = 0 [pid 5858] futex(0x7f93f388731c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5860] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5860] mremap(0x200000000000, 6291458, 6291458, MREMAP_MAYMOVE|MREMAP_FIXED|MREMAP_DONTUNMAP, 0x200000a00000 [pid 5858] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5858] exit_group(0) = ? [pid 5859] <... futex resumed>) = ? [pid 5857] kill(-5858, SIGKILL) = 0 [pid 5857] kill(5858, SIGKILL) = 0 [pid 5857] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5857] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5857] getdents64(3, 0x55558ae3b730 /* 2 entries */, 32768) = 48 [pid 5857] getdents64(3, 0x55558ae3b730 /* 0 entries */, 32768) = 0 [pid 5857] close(3) = 0 [ 286.282342][ T31] INFO: task syz-executor261:5858 blocked for more than 143 seconds. [ 286.290743][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.297861][ T31] Blocked by coredump. [ 286.303094][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.312192][ T31] task:syz-executor261 state:D stack:26920 pid:5858 tgid:5858 ppid:5857 task_flags:0x40004c flags:0x00004002 [ 286.324872][ T31] Call Trace: [ 286.328176][ T31] [ 286.331464][ T31] __schedule+0x1737/0x4d30 [ 286.336029][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.341224][ T31] ? schedule+0x165/0x360 [ 286.345580][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.350790][ T31] ? __pfx___schedule+0x10/0x10 [ 286.355690][ T31] ? schedule+0x91/0x360 [ 286.360278][ T31] schedule+0x165/0x360 [ 286.364470][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.370329][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.375907][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.382003][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.388106][ T31] ? exit_mm+0xcc/0x2c0 [ 286.392609][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.397493][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.403033][ T31] down_read+0x98/0x2e0 [ 286.407214][ T31] exit_mm+0xcc/0x2c0 [ 286.411517][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.416147][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.421556][ T31] do_exit+0x648/0x2300 [ 286.425763][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.430742][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.435970][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.442187][ T31] do_group_exit+0x21c/0x2d0 [ 286.446804][ T31] __x64_sys_exit_group+0x3f/0x40 [ 286.452174][ T31] x64_sys_call+0x21f7/0x2200 [ 286.456901][ T31] do_syscall_64+0xfa/0x3b0 [ 286.461757][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.466981][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.473425][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.478126][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.484423][ T31] RIP: 0033:0x7f93f37fb349 [ 286.488873][ T31] RSP: 002b:00007ffe8b841108 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 286.497667][ T31] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f93f37fb349 [ 286.505888][ T31] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 286.514157][ T31] RBP: 00007f93f38872b0 R08: ffffffffffffffb0 R09: 7fffffffffffffff [ 286.522378][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f93f38872b0 [ 286.530957][ T31] R13: 0000000000000000 R14: 00007f93f3887e40 R15: 00007f93f37c9160 [ 286.538966][ T31] [ 286.542354][ T31] INFO: task syz-executor261:5859 blocked for more than 143 seconds. [ 286.550682][ T31] Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 [ 286.557880][ T31] Blocked by coredump. [ 286.563101][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.571982][ T31] task:syz-executor261 state:D stack:26024 pid:5859 tgid:5858 ppid:5857 task_flags:0x40044c flags:0x00004002 [ 286.584210][ T31] Call Trace: [ 286.587510][ T31] [ 286.590786][ T31] __schedule+0x1737/0x4d30 [ 286.595338][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.600617][ T31] ? schedule+0x165/0x360 [ 286.604992][ T31] ? __lock_acquire+0xab9/0xd20 [ 286.609868][ T31] ? __pfx___schedule+0x10/0x10 [ 286.615248][ T31] ? schedule+0x91/0x360 [ 286.619524][ T31] schedule+0x165/0x360 [ 286.624079][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.629575][ T31] rwsem_down_read_slowpath+0x5fd/0x8f0 [ 286.635477][ T31] ? rwsem_down_read_slowpath+0x4b8/0x8f0 [ 286.641851][ T31] ? __pfx_rwsem_down_read_slowpath+0x10/0x10 [ 286.647943][ T31] ? exit_mm+0xcc/0x2c0 [ 286.652439][ T31] ? __pfx_mm_release+0x10/0x10 [ 286.657309][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.662858][ T31] down_read+0x98/0x2e0 [ 286.667034][ T31] exit_mm+0xcc/0x2c0 [ 286.671353][ T31] ? __pfx_exit_mm+0x10/0x10 [ 286.675972][ T31] ? rcu_is_watching+0x15/0xb0 [ 286.681117][ T31] do_exit+0x648/0x2300 [ 286.685324][ T31] ? do_raw_spin_lock+0x121/0x290 [ 286.690735][ T31] ? __pfx_do_exit+0x10/0x10 [ 286.695372][ T31] do_group_exit+0x21c/0x2d0 [ 286.700294][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.705516][ T31] get_signal+0x1286/0x1340 [ 286.710431][ T31] arch_do_signal_or_restart+0x9a/0x750 [ 286.715996][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.721584][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.726814][ T31] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 286.733333][ T31] ? exit_to_user_mode_loop+0x40/0x110 [ 286.738818][ T31] exit_to_user_mode_loop+0x75/0x110 [ 286.744534][ T31] do_syscall_64+0x2bd/0x3b0 [ 286.749164][ T31] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.756018][ T31] ? __switch_to_asm+0x39/0x70 [ 286.761103][ T31] ? clear_bhb_loop+0x60/0xb0 [ 286.765800][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.772095][ T31] RIP: 0033:0x7f93f37fd2e9 [ 286.776536][ T31] RSP: 002b:00007f93f37b6228 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 286.785487][ T31] RAX: fffffffffffffe00 RBX: 00007f93f3887308 RCX: 00007f93f37fd2e9 [ 286.793685][ T31] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f93f3887308 [ 286.801871][ T31] RBP: 00007f93f3887300 R08: 00007f93f37b66c0 R09: 00007f93f37b66c0 [ 286.809854][ T31] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f93f388730c [ 286.818149][ T31] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffe8b841088 [ 286.826412][ T31] [ 286.829475][ T31] [ 286.829475][ T31] Showing all locks held in the system: [ 286.839852][ T31] 1 lock held by ksoftirqd/1/23: [ 286.845302][ T31] 1 lock held by khungtaskd/31: [ 286.850355][ T31] #0: ffffffff8e53d8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 286.860905][ T31] 2 locks held by getty/5609: [ 286.865622][ T31] #0: ffff88814dfa60a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.875815][ T31] #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 286.886193][ T31] 1 lock held by syz-executor261/5858: [ 286.894399][ T31] #0: ffff88807ea32ce0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 286.903458][ T31] 1 lock held by syz-executor261/5859: [ 286.908926][ T31] #0: ffff88807ea32ce0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mm+0xcc/0x2c0 [ 286.918043][ T31] 1 lock held by syz-executor261/5860: [ 286.923829][ T31] [ 286.926167][ T31] ============================================= [ 286.926167][ T31] [ 286.936895][ T31] NMI backtrace for cpu 0 [ 286.936915][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 286.936934][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 286.936944][ T31] Call Trace: [ 286.936951][ T31] [ 286.936958][ T31] dump_stack_lvl+0x189/0x250 [ 286.936987][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.937012][ T31] ? __pfx__printk+0x10/0x10 [ 286.937048][ T31] nmi_cpu_backtrace+0x39e/0x3d0 [ 286.937073][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 286.937096][ T31] ? __pfx__printk+0x10/0x10 [ 286.937124][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.937147][ T31] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 286.937171][ T31] watchdog+0xf93/0xfe0 [ 286.937194][ T31] ? watchdog+0x1de/0xfe0 [ 286.937217][ T31] kthread+0x70e/0x8a0 [ 286.937246][ T31] ? __pfx_watchdog+0x10/0x10 [ 286.937262][ T31] ? __pfx_kthread+0x10/0x10 [ 286.937289][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.937311][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 286.937333][ T31] ? __pfx_kthread+0x10/0x10 [ 286.937359][ T31] ret_from_fork+0x3f9/0x770 [ 286.937383][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 286.937409][ T31] ? __switch_to_asm+0x39/0x70 [ 286.937424][ T31] ? __switch_to_asm+0x33/0x70 [ 286.937438][ T31] ? __pfx_kthread+0x10/0x10 [ 286.937463][ T31] ret_from_fork_asm+0x1a/0x30 [ 286.937492][ T31] [ 286.937499][ T31] Sending NMI from CPU 0 to CPUs 1: [ 287.084690][ C1] NMI backtrace for cpu 1 [ 287.084706][ C1] CPU: 1 UID: 0 PID: 5860 Comm: syz-executor261 Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.084727][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.084738][ C1] RIP: 0010:lock_release+0xa5/0x3e0 [ 287.084761][ C1] Code: 3c 25 08 50 e7 92 41 83 bf ec 0a 00 00 00 0f 85 1e 02 00 00 49 81 3e 40 13 ab 93 0f 84 11 02 00 00 48 c7 44 24 20 00 00 00 00 <9c> 8f 44 24 20 48 8b 5c 24 20 fa 48 c7 c7 e5 dd c7 8d e8 f4 ca e1 [ 287.084775][ C1] RSP: 0018:ffffc90004156f10 EFLAGS: 00000202 [ 287.084791][ C1] RAX: 0000000000000000 RBX: ffffffff90805c01 RCX: dd8a51402178c300 [ 287.084803][ C1] RDX: ffffc90004157001 RSI: ffffffff8c04d3e0 RDI: ffffffff8c04d3a0 [ 287.084815][ C1] RBP: dffffc0000000000 R08: ffffc900041579b0 R09: 0000000000000000 [ 287.084827][ C1] R10: ffffc90004157098 R11: fffff5200082ae15 R12: ffffc900041579c0 [ 287.084839][ C1] R13: ffffffff81730195 R14: ffffffff8e53d8a0 R15: ffff888032b55a00 [ 287.084852][ C1] FS: 00007f93f37956c0(0000) GS:ffff8881258ab000(0000) knlGS:0000000000000000 [ 287.084872][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.084883][ C1] CR2: 0000562478d4e168 CR3: 0000000023e04000 CR4: 00000000003526f0 [ 287.084898][ C1] Call Trace: [ 287.084904][ C1] [ 287.084911][ C1] ? deref_stack_reg+0x19f/0x230 [ 287.084937][ C1] ? unwind_next_frame+0xa5/0x2390 [ 287.084958][ C1] unwind_next_frame+0x19a9/0x2390 [ 287.084984][ C1] ? unwind_next_frame+0xa5/0x2390 [ 287.085006][ C1] ? do_vmi_align_munmap+0x25d/0x420 [ 287.085033][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 287.085059][ C1] arch_stack_walk+0x11c/0x150 [ 287.085085][ C1] ? do_vmi_munmap+0x253/0x2e0 [ 287.085111][ C1] stack_trace_save+0x9c/0xe0 [ 287.085135][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 287.085165][ C1] kasan_save_track+0x3e/0x80 [ 287.085191][ C1] ? kasan_save_track+0x3e/0x80 [ 287.085205][ C1] ? __kasan_slab_alloc+0x6c/0x80 [ 287.085231][ C1] ? kmem_cache_alloc_noprof+0x1c1/0x3c0 [ 287.085246][ C1] ? vm_area_dup+0x2b/0x680 [ 287.085262][ C1] ? __split_vma+0x1a9/0xa00 [ 287.085274][ C1] ? vms_gather_munmap_vmas+0x4ab/0x12b0 [ 287.085293][ C1] ? do_vmi_align_munmap+0x25d/0x420 [ 287.085335][ C1] __kasan_slab_alloc+0x6c/0x80 [ 287.085350][ C1] kmem_cache_alloc_noprof+0x1c1/0x3c0 [ 287.085372][ C1] ? vm_area_dup+0x2b/0x680 [ 287.085390][ C1] vm_area_dup+0x2b/0x680 [ 287.085409][ C1] __split_vma+0x1a9/0xa00 [ 287.085422][ C1] ? mas_next_slot+0xc20/0xcf0 [ 287.085444][ C1] ? __pfx___split_vma+0x10/0x10 [ 287.085462][ C1] ? mas_find+0xb0e/0xd30 [ 287.085483][ C1] vms_gather_munmap_vmas+0x4ab/0x12b0 [ 287.085513][ C1] ? __pfx_vms_gather_munmap_vmas+0x10/0x10 [ 287.085536][ C1] ? move_page_tables+0x57a/0x1f50 [ 287.085556][ C1] ? __pfx_copy_vma+0x10/0x10 [ 287.085580][ C1] do_vmi_align_munmap+0x25d/0x420 [ 287.085609][ C1] ? __pfx_do_vmi_align_munmap+0x10/0x10 [ 287.085643][ C1] do_vmi_munmap+0x253/0x2e0 [ 287.085666][ C1] do_munmap+0xe1/0x140 [ 287.085682][ C1] ? __pfx_do_munmap+0x10/0x10 [ 287.085700][ C1] ? bpf_lsm_mmap_addr+0x9/0x20 [ 287.085713][ C1] ? security_mmap_addr+0x71/0x270 [ 287.085735][ C1] mremap_to+0x2df/0x7a0 [ 287.085759][ C1] ? __pfx_mremap_to+0x10/0x10 [ 287.085781][ C1] ? check_prep_vma+0x740/0xae0 [ 287.085806][ C1] __se_sys_mremap+0xa0b/0xef0 [ 287.085835][ C1] ? __pfx___se_sys_mremap+0x10/0x10 [ 287.085858][ C1] ? __pfx_ptrace_notify+0x10/0x10 [ 287.085887][ C1] ? __x64_sys_mremap+0x20/0xc0 [ 287.085907][ C1] do_syscall_64+0xfa/0x3b0 [ 287.085929][ C1] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.085943][ C1] ? __switch_to_asm+0x39/0x70 [ 287.085955][ C1] ? clear_bhb_loop+0x60/0xb0 [ 287.085971][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.085984][ C1] RIP: 0033:0x7f93f37fd2e9 [ 287.085996][ C1] 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 [ 287.086008][ C1] RSP: 002b:00007f93f3795228 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 [ 287.086021][ C1] RAX: ffffffffffffffda RBX: 00007f93f3887318 RCX: 00007f93f37fd2e9 [ 287.086031][ C1] RDX: 0000000000600002 RSI: 0000000000600002 RDI: 0000200000000000 [ 287.086057][ C1] RBP: 00007f93f3887310 R08: 0000200000a00000 R09: 00007f93f37956c0 [ 287.086067][ C1] R10: 0000000000000007 R11: 0000000000000246 R12: 00007f93f388731c [ 287.086077][ C1] R13: 0000200000000000 R14: b635773f06ebbeed R15: 00007ffe8b841088 [ 287.086095][ C1] [ 287.086102][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.412 msecs [ 287.086697][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 287.547333][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc6-next-20250718-syzkaller #0 PREEMPT(full) [ 287.558606][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.568655][ T31] Call Trace: [ 287.571932][ T31] [ 287.574859][ T31] dump_stack_lvl+0x99/0x250 [ 287.579488][ T31] ? __asan_memcpy+0x40/0x70 [ 287.584117][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.589326][ T31] ? __pfx__printk+0x10/0x10 [ 287.593927][ T31] vpanic+0x281/0x750 [ 287.597938][ T31] ? __pfx_vpanic+0x10/0x10 [ 287.602438][ T31] ? __x2apic_send_IPI_mask+0x1e4/0x260 [ 287.607985][ T31] ? preempt_schedule+0xae/0xc0 [ 287.612841][ T31] ? preempt_schedule_common+0x83/0xd0 [ 287.618305][ T31] panic+0xb9/0xc0 [ 287.622024][ T31] ? __pfx_panic+0x10/0x10 [ 287.626450][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 287.631823][ T31] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300 [ 287.637992][ T31] watchdog+0xfd2/0xfe0 [ 287.642159][ T31] ? watchdog+0x1de/0xfe0 [ 287.646490][ T31] kthread+0x70e/0x8a0 [ 287.650570][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.655276][ T31] ? __pfx_kthread+0x10/0x10 [ 287.659869][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.665080][ T31] ? lockdep_hardirqs_on+0x9c/0x150 [ 287.670291][ T31] ? __pfx_kthread+0x10/0x10 [ 287.674891][ T31] ret_from_fork+0x3f9/0x770 [ 287.679492][ T31] ? __pfx_ret_from_fork+0x10/0x10 [ 287.684606][ T31] ? __switch_to_asm+0x39/0x70 [ 287.689367][ T31] ? __switch_to_asm+0x33/0x70 [ 287.694122][ T31] ? __pfx_kthread+0x10/0x10 [ 287.698722][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.703490][ T31] [ 287.706918][ T31] Kernel Offset: disabled [ 287.711252][ T31] Rebooting in 86400 seconds..