./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1739128668 <...> Warning: Permanently added '10.128.10.33' (ED25519) to the list of known hosts. execve("./syz-executor1739128668", ["./syz-executor1739128668"], 0x7ffedc0672c0 /* 10 vars */) = 0 brk(NULL) = 0x55555969c000 brk(0x55555969cd40) = 0x55555969cd40 arch_prctl(ARCH_SET_FS, 0x55555969c3c0) = 0 set_tid_address(0x55555969c690) = 5846 set_robust_list(0x55555969c6a0, 24) = 0 rseq(0x55555969cce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1739128668", 4096) = 28 getrandom("\x60\xc3\x11\xcb\x26\x4c\x19\x17", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555969cd40 brk(0x5555596bdd40) = 0x5555596bdd40 brk(0x5555596be000) = 0x5555596be000 mprotect(0x7f6ab8a33000, 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, child_tidptr=0x55555969c690) = 5847 ./strace-static-x86_64: Process 5847 attached [pid 5847] set_robust_list(0x55555969c6a0, 24) = 0 [pid 5847] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5847] setpgid(0, 0) = 0 [pid 5847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5847] write(3, "1000", 4) = 4 [pid 5847] close(3) = 0 [pid 5847] write(1, "executing program\n", 18executing program ) = 18 [pid 5847] futex(0x7f6ab8a3932c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] rt_sigaction(SIGRT_1, {sa_handler=0x7f6ab89d52a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f6ab89c6920}, NULL, 8) = 0 [pid 5847] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6ab8948000 [pid 5847] mprotect(0x7f6ab8949000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6ab8968990, parent_tid=0x7f6ab8968990, exit_signal=0, stack=0x7f6ab8948000, stack_size=0x20300, tls=0x7f6ab89686c0}./strace-static-x86_64: Process 5848 attached => {parent_tid=[5848]}, 88) = 5848 [pid 5848] rseq(0x7f6ab8968fe0, 0x20, 0, 0x53053053 [pid 5847] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5848] <... rseq resumed>) = 0 [pid 5847] futex(0x7f6ab8a39328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] set_robust_list(0x7f6ab89689a0, 24 [pid 5847] <... futex resumed>) = 0 [pid 5848] <... set_robust_list resumed>) = 0 [pid 5847] futex(0x7f6ab8a3932c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5848] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5848] openat(AT_FDCWD, "/dev/nullb0", O_RDWR|O_EXCL|O_NONBLOCK|O_LARGEFILE|O_NOATIME) = 3 [pid 5848] futex(0x7f6ab8a3932c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5848] futex(0x7f6ab8a39328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5847] <... futex resumed>) = 0 [pid 5848] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] futex(0x7f6ab8a39328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5848] sendfile(3, 3, NULL, 1125899906842687 [pid 5847] <... futex resumed>) = 0 [pid 5847] futex(0x7f6ab8a3932c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5847] futex(0x7f6ab8a3933c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5847] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f6ab8927000 [pid 5847] mprotect(0x7f6ab8928000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5847] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5847] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f6ab8947990, parent_tid=0x7f6ab8947990, exit_signal=0, stack=0x7f6ab8927000, stack_size=0x20300, tls=0x7f6ab89476c0}./strace-static-x86_64: Process 5849 attached [pid 5849] rseq(0x7f6ab8947fe0, 0x20, 0, 0x53053053 [pid 5847] <... clone3 resumed> => {parent_tid=[5849]}, 88) = 5849 [pid 5849] <... rseq resumed>) = 0 [pid 5849] set_robust_list(0x7f6ab89479a0, 24 [pid 5847] rt_sigprocmask(SIG_SETMASK, [], [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] rt_sigprocmask(SIG_SETMASK, [], [pid 5847] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5849] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5847] futex(0x7f6ab8a39338, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] dup(3) = 4 [pid 5847] <... futex resumed>) = 0 [pid 5849] futex(0x7f6ab8a3933c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5847] futex(0x7f6ab8a3933c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5849] <... futex resumed>) = 0 [pid 5847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5847] futex(0x7f6ab8a39338, FUTEX_WAKE_PRIVATE, 1000000 [pid 5849] fallocate(4, FALLOC_FL_KEEP_SIZE|FALLOC_FL_ZERO_RANGE, 134217728, 2252074691592704 [pid 5847] <... futex resumed>) = 0 [pid 5847] futex(0x7f6ab8a3933c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5847] exit_group(0) = ? [pid 5846] kill(-5847, SIGKILL) = 0 [pid 5846] kill(5847, SIGKILL) = 0 [pid 5846] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5846] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5846] getdents64(3, 0x55555969d730 /* 2 entries */, 32768) = 48 [pid 5846] getdents64(3, 0x55555969d730 /* 0 entries */, 32768) = 0 [pid 5846] close(3) = 0 [ 286.512208][ T31] INFO: task syz-executor173:5848 blocked for more than 143 seconds. [ 286.520464][ T31] Not tainted 6.15.0-rc2-syzkaller-00404-g8560697b23dc #0 [ 286.528122][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.539637][ T31] task:syz-executor173 state:D stack:22744 pid:5848 tgid:5847 ppid:5846 task_flags:0x440040 flags:0x00004006 [ 286.582995][ T31] Call Trace: [ 286.586349][ T31] [ 286.589309][ T31] __schedule+0x1b33/0x51f0 [ 286.620226][ T31] ? schedule+0x163/0x360 [ 286.624727][ T31] ? __pfx___schedule+0x10/0x10 [ 286.639704][ T31] ? schedule+0x90/0x360 [ 286.644037][ T31] ? schedule+0x90/0x360 [ 286.648325][ T31] schedule+0x163/0x360 [ 286.669617][ T31] ? down_read+0x6a5/0xa50 [ 286.674123][ T31] schedule_preempt_disabled+0x13/0x30 [ 286.689589][ T31] down_read+0x6ff/0xa50 [ 286.693911][ T31] ? __pfx_down_read+0x10/0x10 [ 286.698737][ T31] page_cache_ra_order+0x45e/0xca0 [ 286.719638][ T31] filemap_get_pages+0x9ec/0x1fc0 [ 286.724741][ T31] ? kasan_save_track+0x3f/0x80 [ 286.739579][ T31] ? kasan_save_free_info+0x40/0x50 [ 286.744850][ T31] ? __kasan_slab_free+0x59/0x70 [ 286.759582][ T31] ? do_sendfile+0x582/0x8c0 [ 286.764239][ T31] ? do_syscall_64+0xf3/0x210 [ 286.768995][ T31] ? __pfx_filemap_get_pages+0x10/0x10 [ 286.789608][ T31] ? __pfx___might_resched+0x10/0x10 [ 286.794987][ T31] ? lockdep_hardirqs_on+0x9d/0x150 [ 286.809598][ T31] ? iter_file_splice_write+0x12cb/0x1530 [ 286.815502][ T31] filemap_splice_read+0x690/0xef0 [ 286.820724][ T31] ? __pfx_filemap_splice_read+0x10/0x10 [ 286.826454][ T31] ? __pfx_pipe_lock_cmp_fn+0x10/0x10 [ 286.831918][ T31] ? file_end_write+0xdd/0x250 [ 286.836715][ T31] ? direct_splice_actor+0x128/0x220 [ 286.842070][ T31] ? __pfx_filemap_splice_read+0x10/0x10 [ 286.847746][ T31] splice_direct_to_actor+0x4af/0xc90 [ 286.853221][ T31] ? __pfx_direct_splice_actor+0x10/0x10 [ 286.858890][ T31] ? __pfx_splice_direct_to_actor+0x10/0x10 [ 286.864899][ T31] do_splice_direct+0x281/0x3d0 [ 286.869866][ T31] ? __pfx_do_splice_direct+0x10/0x10 [ 286.875275][ T31] ? __fget_files+0x2a/0x420 [ 286.879924][ T31] ? __pfx_direct_file_splice_eof+0x10/0x10 [ 286.885850][ T31] ? bpf_lsm_file_permission+0x9/0x10 [ 286.891306][ T31] ? rw_verify_area+0x246/0x630 [ 286.896191][ T31] do_sendfile+0x582/0x8c0 [ 286.900695][ T31] ? __pfx_do_sendfile+0x10/0x10 [ 286.905667][ T31] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.910985][ T31] ? ptrace_notify+0x282/0x390 [ 286.915800][ T31] __se_sys_sendfile64+0x17e/0x1e0 [ 286.921032][ T31] ? __pfx___se_sys_sendfile64+0x10/0x10 [ 286.926806][ T31] do_syscall_64+0xf3/0x210 [ 286.931380][ T31] ? clear_bhb_loop+0x45/0xa0 [ 286.936089][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.942084][ T31] RIP: 0033:0x7f6ab89af369 [ 286.946540][ T31] RSP: 002b:00007f6ab8968228 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 286.969595][ T31] RAX: ffffffffffffffda RBX: 00007f6ab8a39328 RCX: 00007f6ab89af369 [ 286.977674][ T31] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000003 [ 287.009576][ T31] RBP: 00007f6ab8a39320 R08: 00007f6ab89686c0 R09: 00007f6ab89686c0 [ 287.017699][ T31] R10: 000400000000003f R11: 0000000000000246 R12: 00007f6ab8a3932c [ 287.025836][ T31] R13: 0000200000001000 R14: 6c756e2f7665642f R15: 00007ffd51b68748 [ 287.033928][ T31] [ 287.037053][ T31] [ 287.037053][ T31] Showing all locks held in the system: [ 287.049736][ T31] 1 lock held by khungtaskd/31: [ 287.054638][ T31] #0: ffffffff8ed3df20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x30/0x180 [ 287.079770][ T31] 5 locks held by klogd/5189: [ 287.084550][ T31] 2 locks held by getty/5593: [ 287.089252][ T31] #0: ffff888035d020a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.140067][ T31] #1: ffffc9000334b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x5bb/0x1700 [ 287.169626][ T31] 1 lock held by syz-executor173/5848: [ 287.175147][ T31] #0: ffff888023bd6540 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_order+0x45e/0xca0 [ 287.199578][ T31] 1 lock held by syz-executor173/5849: [ 287.209627][ T31] [ 287.211995][ T31] ============================================= [ 287.211995][ T31] [ 287.230199][ T31] NMI backtrace for cpu 1 [ 287.230232][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc2-syzkaller-00404-g8560697b23dc #0 PREEMPT(full) [ 287.230256][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 287.230269][ T31] Call Trace: [ 287.230277][ T31] [ 287.230285][ T31] dump_stack_lvl+0x241/0x360 [ 287.230320][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.230347][ T31] ? __pfx__printk+0x10/0x10 [ 287.230385][ T31] nmi_cpu_backtrace+0x4ab/0x4e0 [ 287.230419][ T31] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.230445][ T31] ? _printk+0xd5/0x120 [ 287.230471][ T31] ? __wake_up_klogd+0xcc/0x110 [ 287.230494][ T31] ? __pfx__printk+0x10/0x10 [ 287.230524][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.230556][ T31] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.230595][ T31] watchdog+0x1058/0x10a0 [ 287.230622][ T31] ? watchdog+0x1ea/0x10a0 [ 287.230651][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.230676][ T31] kthread+0x7b7/0x940 [ 287.230699][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.230724][ T31] ? __pfx_kthread+0x10/0x10 [ 287.230743][ T31] ? __pfx_kthread+0x10/0x10 [ 287.230764][ T31] ? __pfx_kthread+0x10/0x10 [ 287.230784][ T31] ? __pfx_kthread+0x10/0x10 [ 287.230805][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.230833][ T31] ? lockdep_hardirqs_on+0x9d/0x150 [ 287.230853][ T31] ? __pfx_kthread+0x10/0x10 [ 287.230875][ T31] ret_from_fork+0x4b/0x80 [ 287.230892][ T31] ? __pfx_kthread+0x10/0x10 [ 287.230914][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.230960][ T31] [ 287.230968][ T31] Sending NMI from CPU 1 to CPUs 0: [ 287.398263][ C0] NMI backtrace for cpu 0 [ 287.398282][ C0] CPU: 0 UID: 0 PID: 5182 Comm: syslogd Not tainted 6.15.0-rc2-syzkaller-00404-g8560697b23dc #0 PREEMPT(full) [ 287.398302][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 287.398313][ C0] RIP: 0010:__lock_acquire+0x500/0xd80 [ 287.398341][ C0] Code: 41 ff c7 41 89 c6 48 39 cb 0f 8d bc 00 00 00 41 83 ff 31 0f 83 95 00 00 00 41 8b 04 24 25 ff 1f 00 00 48 0f a3 05 60 28 ce 12 <73> 10 48 69 c0 c8 00 00 00 48 8d 88 c0 96 0d 94 eb 42 83 3d 77 b7 [ 287.398354][ C0] RSP: 0018:ffffc90000007648 EFLAGS: 00000003 [ 287.398370][ C0] RAX: 00000000000000d9 RBX: 0000000000000000 RCX: 00000000000000de [ 287.398380][ C0] RDX: 0000000000000003 RSI: ffff888067d1a8f0 RDI: 0000000000000000 [ 287.398391][ C0] RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 [ 287.398401][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888067d1a910 [ 287.398411][ C0] R13: ffff888067d19e00 R14: ffff888067d1a903 R15: 0000000000000000 [ 287.398423][ C0] FS: 00007f430d2a3380(0000) GS:ffff888124fcf000(0000) knlGS:0000000000000000 [ 287.398437][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.398448][ C0] CR2: 000055ea6118d600 CR3: 00000000683f0000 CR4: 00000000003526f0 [ 287.398462][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.398471][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.398481][ C0] Call Trace: [ 287.398487][ C0] [ 287.398499][ C0] lock_acquire+0x116/0x2f0 [ 287.398520][ C0] ? unwind_next_frame+0xb8/0x23b0 [ 287.398540][ C0] ? unwind_next_frame+0xb8/0x23b0 [ 287.398557][ C0] ? __unix_dgram_recvmsg+0x356/0x12e0 [ 287.398579][ C0] ? unwind_next_frame+0xb8/0x23b0 [ 287.398595][ C0] unwind_next_frame+0xd5/0x23b0 [ 287.398612][ C0] ? unwind_next_frame+0xb8/0x23b0 [ 287.398631][ C0] ? unwind_next_frame+0xb8/0x23b0 [ 287.398648][ C0] ? __unix_dgram_recvmsg+0x356/0x12e0 [ 287.398664][ C0] ? __unix_dgram_recvmsg+0x356/0x12e0 [ 287.398680][ C0] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 287.398699][ C0] arch_stack_walk+0x11e/0x150 [ 287.398720][ C0] ? __unix_dgram_recvmsg+0x356/0x12e0 [ 287.398738][ C0] stack_trace_save+0x11a/0x1d0 [ 287.398755][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 287.398772][ C0] ? do_raw_spin_lock+0x151/0x370 [ 287.398793][ C0] save_stack+0xfc/0x1f0 [ 287.398812][ C0] ? __pfx_save_stack+0x10/0x10 [ 287.398828][ C0] ? __free_frozen_pages+0xddf/0x10a0 [ 287.398852][ C0] ? rcu_core+0xaac/0x17a0 [ 287.398874][ C0] ? handle_softirqs+0x2d6/0x9b0 [ 287.398896][ C0] ? __irq_exit_rcu+0xfb/0x220 [ 287.398919][ C0] ? irq_exit_rcu+0x9/0x30 [ 287.398940][ C0] ? sysvec_apic_timer_interrupt+0xa6/0xc0 [ 287.398965][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 287.398982][ C0] ? kasan_check_range+0x86/0x2a0 [ 287.399001][ C0] ? __asan_memset+0x23/0x50 [ 287.399025][ C0] ? schedule_timeout+0x97/0x2b0 [ 287.399046][ C0] ? __skb_wait_for_more_packets+0x39b/0x600 [ 287.399062][ C0] ? __unix_dgram_recvmsg+0x356/0x12e0 [ 287.399081][ C0] ? page_ext_put+0x97/0xc0 [ 287.399101][ C0] __reset_page_owner+0x76/0x1e0 [ 287.399119][ C0] __free_frozen_pages+0xddf/0x10a0 [ 287.399145][ C0] ? rcu_core+0xa39/0x17a0 [ 287.399167][ C0] ? __pfx_rcu_free_slab+0x10/0x10 [ 287.399182][ C0] rcu_core+0xaac/0x17a0 [ 287.399211][ C0] ? __pfx_rcu_core+0x10/0x10 [ 287.399234][ C0] ? __pfx_tmigr_handle_remote+0x10/0x10 [ 287.399261][ C0] ? __local_bh_disable_ip+0x17a/0x220 [ 287.399288][ C0] ? seqcount_lockdep_reader_access+0x1c3/0x230 [ 287.399310][ C0] handle_softirqs+0x2d6/0x9b0 [ 287.399337][ C0] ? __irq_exit_rcu+0xfb/0x220 [ 287.399362][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 287.399390][ C0] __irq_exit_rcu+0xfb/0x220 [ 287.399413][ C0] ? __pfx___irq_exit_rcu+0x10/0x10 [ 287.399441][ C0] irq_exit_rcu+0x9/0x30 [ 287.399463][ C0] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 287.399488][ C0] [ 287.399493][ C0] [ 287.399499][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 287.399516][ C0] RIP: 0010:kasan_check_range+0x86/0x2a0 [ 287.399543][ C0] Code: 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd 41 80 3b 00 <0f> 85 d6 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00 00 45 89 dc [ 287.399557][ C0] RSP: 0018:ffffc9000fabf730 EFLAGS: 00000246 [ 287.399581][ C0] RAX: ffffffff8c2a5201 RBX: 1ffff92001f57ef4 RCX: ffffffff8c2a5247 [ 287.399595][ C0] RDX: 0000000000000001 RSI: 0000000000000050 RDI: ffffc9000fabf7a0 [ 287.399607][ C0] RBP: fffffffffffffffb R08: ffffc9000fabf7ef R09: 1ffff92001f57efd [ 287.399621][ C0] R10: dffffc0000000000 R11: fffff52001f57ef9 R12: 1ffff92001f57ef0 [ 287.399635][ C0] R13: dffffc0000000000 R14: dffffc0000000001 R15: fffff52001f57efe [ 287.399653][ C0] ? schedule_timeout+0x51/0x2b0 [ 287.399678][ C0] ? schedule_timeout+0x97/0x2b0 [ 287.399707][ C0] __asan_memset+0x23/0x50 [ 287.399736][ C0] schedule_timeout+0x97/0x2b0 [ 287.399761][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 287.399791][ C0] ? prepare_to_wait_exclusive+0x88/0x250 [ 287.399817][ C0] __skb_wait_for_more_packets+0x39b/0x600 [ 287.399840][ C0] ? __pfx___skb_wait_for_more_packets+0x10/0x10 [ 287.399858][ C0] ? __pfx_receiver_wake_function+0x10/0x10 [ 287.399875][ C0] ? __pfx___skb_try_recv_datagram+0x10/0x10 [ 287.399890][ C0] ? copy_page_from_iter_atomic+0x1d27/0x1de0 [ 287.399912][ C0] ? ktime_get_coarse_real_ts64_mg+0x57/0x220 [ 287.399936][ C0] __unix_dgram_recvmsg+0x356/0x12e0 [ 287.399958][ C0] ? __pfx___unix_dgram_recvmsg+0x10/0x10 [ 287.399976][ C0] ? folio_unlock+0x10e/0x170 [ 287.400003][ C0] ? unix_dgram_recvmsg+0xb6/0xe0 [ 287.400022][ C0] ? __pfx_unix_dgram_recvmsg+0x10/0x10 [ 287.400044][ C0] sock_recvmsg+0x22f/0x280 [ 287.400064][ C0] sock_read_iter+0x2c6/0x3e0 [ 287.400083][ C0] ? __pfx_sock_read_iter+0x10/0x10 [ 287.400104][ C0] ? vfs_write+0xb29/0xd10 [ 287.400119][ C0] ? bpf_lsm_file_permission+0x9/0x10 [ 287.400143][ C0] vfs_read+0x9a0/0xb90 [ 287.400162][ C0] ? __pfx_vfs_read+0x10/0x10 [ 287.400178][ C0] ? rcu_is_watching+0x15/0xb0 [ 287.400199][ C0] ksys_read+0x19d/0x2d0 [ 287.400215][ C0] ? __pfx_ksys_read+0x10/0x10 [ 287.400233][ C0] ? do_syscall_64+0xb6/0x210 [ 287.400251][ C0] do_syscall_64+0xf3/0x210 [ 287.400268][ C0] ? clear_bhb_loop+0x45/0xa0 [ 287.400286][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.400302][ C0] RIP: 0033:0x7f430d3f7b6a [ 287.400316][ C0] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 287.400328][ C0] RSP: 002b:00007ffdeae0f4d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 287.400344][ C0] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f430d3f7b6a [ 287.400355][ C0] RDX: 00000000000000ff RSI: 0000562d4594f950 RDI: 0000000000000000 [ 287.400365][ C0] RBP: 0000562d4594f910 R08: 0000000000000001 R09: 0000000000000000 [ 287.400375][ C0] R10: 00007f430d5963a3 R11: 0000000000000246 R12: 0000562d4594f99f [ 287.400386][ C0] R13: 0000562d4594f950 R14: 0000000000000000 R15: 00007f430d5dca80 [ 287.400405][ C0] [ 287.400412][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.150 msecs [ 287.619635][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 287.619662][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.15.0-rc2-syzkaller-00404-g8560697b23dc #0 PREEMPT(full) [ 287.619690][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 287.619705][ T31] Call Trace: [ 287.619715][ T31] [ 287.619725][ T31] dump_stack_lvl+0x241/0x360 [ 287.619764][ T31] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.619809][ T31] ? __pfx__printk+0x10/0x10 [ 287.619845][ T31] ? vscnprintf+0x5d/0x90 [ 287.619878][ T31] panic+0x349/0x880 [ 287.619905][ T31] ? __pfx_preempt_schedule+0x10/0x10 [ 287.619941][ T31] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.619975][ T31] ? __pfx_panic+0x10/0x10 [ 287.619999][ T31] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.620039][ T31] ? preempt_schedule_thunk+0x16/0x30 [ 287.620065][ T31] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.620096][ T31] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 287.620131][ T31] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 287.620165][ T31] watchdog+0x1097/0x10a0 [ 287.620196][ T31] ? watchdog+0x1ea/0x10a0 [ 287.620228][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.620255][ T31] kthread+0x7b7/0x940 [ 287.620283][ T31] ? __pfx_watchdog+0x10/0x10 [ 287.620311][ T31] ? __pfx_kthread+0x10/0x10 [ 287.620332][ T31] ? __pfx_kthread+0x10/0x10 [ 287.620356][ T31] ? __pfx_kthread+0x10/0x10 [ 287.620380][ T31] ? __pfx_kthread+0x10/0x10 [ 287.620403][ T31] ? _raw_spin_unlock_irq+0x23/0x50 [ 287.620435][ T31] ? lockdep_hardirqs_on+0x9d/0x150 [ 287.620458][ T31] ? __pfx_kthread+0x10/0x10 [ 287.620483][ T31] ret_from_fork+0x4b/0x80 [ 287.620502][ T31] ? __pfx_kthread+0x10/0x10 [ 287.620526][ T31] ret_from_fork_asm+0x1a/0x30 [ 287.620576][ T31] [ 288.282905][ T31] Kernel Offset: disabled [ 288.287238][ T31] Rebooting in 86400 seconds..