./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2525937183 <...> forked to background, child pid 4653 no interfaces have a carrier [ 53.956941][ T4654] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.991781][ T4654] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. execve("./syz-executor2525937183", ["./syz-executor2525937183"], 0x7ffe5328d520 /* 10 vars */) = 0 brk(NULL) = 0x555556a46000 brk(0x555556a46c40) = 0x555556a46c40 arch_prctl(ARCH_SET_FS, 0x555556a46300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2525937183", 4096) = 28 brk(0x555556a67c40) = 0x555556a67c40 brk(0x555556a68000) = 0x555556a68000 mprotect(0x7f46fb380000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached , child_tidptr=0x555556a465d0) = 5080 [pid 5080] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5080] setsid() = 1 [pid 5080] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5080] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5080] unshare(CLONE_NEWNS) = 0 [pid 5080] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5080] unshare(CLONE_NEWIPC) = 0 [pid 5080] unshare(CLONE_NEWCGROUP) = 0 [pid 5080] unshare(CLONE_NEWUTS) = 0 [pid 5080] unshare(CLONE_SYSVSEM) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "16777216", 8) = 8 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "536870912", 9) = 9 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "8192", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024", 4) = 4 [pid 5080] close(3) = 0 [pid 5080] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5080] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5080] close(3) = 0 [pid 5080] getpid() = 1 [pid 5080] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<q.lock){+.-.}-{2:2}, at: dev_reset_queue+0x8a/0x130 [ 83.107956][ T5090] Modules linked in: [ 83.112355][ T5090] Preemption disabled at: [ 83.112369][ T5090] [<0000000000000000>] 0x0 [ 83.122043][ T5090] Kernel panic - not syncing: scheduling while atomic: panic_on_warn set ... [ 83.131081][ T5090] CPU: 0 PID: 5090 Comm: syz-executor252 Not tainted 6.2.0-rc4-next-20230118-syzkaller #0 [ 83.140999][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 83.151074][ T5090] Call Trace: [ 83.154454][ T5090] [ 83.157396][ T5090] dump_stack_lvl+0xd1/0x138 [ 83.162028][ T5090] panic+0x2cc/0x626 [ 83.165948][ T5090] ? panic_print_sys_info.part.0+0x110/0x110 [ 83.171954][ T5090] ? record_print_text.cold+0x16/0x16 [ 83.177349][ T5090] ? print_modules+0x19d/0x1d7 [ 83.182220][ T5090] ? msleep+0x67/0x100 [ 83.186358][ T5090] check_panic_on_warn.cold+0x19/0x35 [ 83.191774][ T5090] __schedule_bug.cold+0xd5/0xfe [ 83.196764][ T5090] __schedule+0x39e6/0x5a70 [ 83.201326][ T5090] ? _raw_spin_unlock_irqrestore+0x3c/0x70 [ 83.207172][ T5090] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 83.213007][ T5090] ? __mod_timer+0x8d9/0xe80 [ 83.217623][ T5090] ? io_schedule_timeout+0x150/0x150 [ 83.223045][ T5090] ? add_timer_on+0x4e0/0x4e0 [ 83.227745][ T5090] ? lock_chain_count+0x20/0x20 [ 83.232619][ T5090] ? debug_object_free+0x360/0x360 [ 83.237783][ T5090] ? msleep+0x67/0x100 [ 83.241902][ T5090] schedule+0xde/0x1a0 [ 83.246021][ T5090] schedule_timeout+0x14e/0x2a0 [ 83.251093][ T5090] ? usleep_range_state+0x1b0/0x1b0 [ 83.256337][ T5090] ? __next_timer_interrupt+0x2a0/0x2a0 [ 83.261956][ T5090] ? _raw_spin_unlock_irqrestore+0x3c/0x70 [ 83.267820][ T5090] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 83.273661][ T5090] msleep+0xb6/0x100 [ 83.277610][ T5090] taprio_reset+0x93/0x270 [ 83.282066][ T5090] ? taprio_destroy+0x640/0x640 [ 83.286959][ T5090] qdisc_reset+0x10c/0x780 [ 83.291405][ T5090] dev_reset_queue+0x92/0x130 [ 83.296109][ T5090] dev_deactivate_many+0x36d/0xa60 [ 83.301270][ T5090] dev_deactivate+0xed/0x1b0 [ 83.305918][ T5090] ? dev_deactivate_many+0xa60/0xa60 [ 83.311269][ T5090] qdisc_graft+0xe7f/0x1400 [ 83.315821][ T5090] ? qdisc_create+0x659/0x11b0 [ 83.320614][ T5090] ? qdisc_notify.isra.0+0x330/0x330 [ 83.325939][ T5090] ? tc_get_qdisc+0xba0/0xba0 [ 83.330658][ T5090] tc_modify_qdisc+0xbd9/0x1a40 [ 83.335565][ T5090] ? qdisc_create+0x11b0/0x11b0 [ 83.340452][ T5090] ? trace_lock_acquire+0x1f1/0x290 [ 83.345676][ T5090] ? qdisc_create+0x11b0/0x11b0 [ 83.350549][ T5090] rtnetlink_rcv_msg+0x43d/0xd50 [ 83.355530][ T5090] ? rtnl_fdb_dump+0x9b0/0x9b0 [ 83.360318][ T5090] ? __dev_queue_xmit+0xb4d/0x3e00 [ 83.365477][ T5090] ? __kasan_kmalloc+0xa2/0xb0 [ 83.370306][ T5090] ? __kmalloc_node_track_caller+0x5b/0xc0 [ 83.376152][ T5090] ? __alloc_skb+0xe9/0x310 [ 83.380690][ T5090] ? netlink_sendmsg+0x9b0/0xe20 [ 83.385697][ T5090] netlink_rcv_skb+0x165/0x440 [ 83.390578][ T5090] ? rtnl_fdb_dump+0x9b0/0x9b0 [ 83.395459][ T5090] ? netlink_ack+0x1370/0x1370 [ 83.400269][ T5090] ? netlink_deliver_tap+0x1b1/0xcf0 [ 83.406393][ T5090] netlink_unicast+0x547/0x7f0 [ 83.411222][ T5090] ? netlink_attachskb+0x890/0x890 [ 83.416369][ T5090] ? __virt_addr_valid+0x61/0x2e0 [ 83.421429][ T5090] ? __phys_addr_symbol+0x30/0x70 [ 83.426488][ T5090] ? __check_object_size+0x2e2/0x5a0 [ 83.431811][ T5090] netlink_sendmsg+0x925/0xe20 [ 83.436617][ T5090] ? netlink_unicast+0x7f0/0x7f0 [ 83.441591][ T5090] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 83.446901][ T5090] ? netlink_unicast+0x7f0/0x7f0 [ 83.451873][ T5090] sock_sendmsg+0xde/0x190 [ 83.456672][ T5090] ____sys_sendmsg+0x71c/0x900 [ 83.461469][ T5090] ? copy_msghdr_from_user+0xfc/0x150 [ 83.466912][ T5090] ? kernel_sendmsg+0x50/0x50 [ 83.471628][ T5090] ? __switch_to+0x5d0/0x1110 [ 83.476418][ T5090] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 83.482439][ T5090] ___sys_sendmsg+0x110/0x1b0 [ 83.487155][ T5090] ? do_recvmmsg+0x6e0/0x6e0 [ 83.491794][ T5090] ? lock_sync+0x190/0x190 [ 83.496234][ T5090] ? ptrace_stop.part.0+0x4e3/0x8e0 [ 83.501458][ T5090] ? rcu_read_lock_sched_held+0x3e/0x70 [ 83.507027][ T5090] ? do_raw_spin_lock+0x124/0x2b0 [ 83.512078][ T5090] ? rwlock_bug.part.0+0x90/0x90 [ 83.517041][ T5090] ? lock_acquire+0x32/0xc0 [ 83.521568][ T5090] ? ptrace_stop.part.0+0x4e3/0x8e0 [ 83.526792][ T5090] ? __fget_light+0x20a/0x270 [ 83.531504][ T5090] __sys_sendmsg+0xf7/0x1c0 [ 83.536045][ T5090] ? __sys_sendmsg_sock+0x40/0x40 [ 83.541128][ T5090] ? lockdep_hardirqs_on+0x7d/0x100 [ 83.546361][ T5090] ? _raw_spin_unlock_irq+0x2e/0x50 [ 83.551588][ T5090] ? ptrace_notify+0xfe/0x140 [ 83.556302][ T5090] do_syscall_64+0x39/0xb0 [ 83.560748][ T5090] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 83.566668][ T5090] RIP: 0033:0x7f46fb30bee9 [ 83.571099][ T5090] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 83.590733][ T5090] RSP: 002b:00007fff2eef4348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.599172][ T5090] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f46fb30bee9 [ 83.607154][ T5090] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 [ 83.615145][ T5090] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 83.623144][ T5090] R10: 000000000000000d R11: 0000000000000246 R12: 00007fff2eef4360 [ 83.631129][ T5090] R13: 00000000000f4240 R14: 000000000001442a R15: 00007fff2eef4354 [ 83.639139][ T5090] [ 83.642232][ T5090] Kernel Offset: disabled [ 83.646675][ T5090] Rebooting in 86400 seconds..