./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1090894197 <...> forked to background, child pid 4658 no interfaces have a carrier [ 50.939620][ T4659] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.964647][ T4659] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.73' (ECDSA) to the list of known hosts. execve("./syz-executor1090894197", ["./syz-executor1090894197"], 0x7ffcd9e2bed0 /* 10 vars */) = 0 brk(NULL) = 0x555556616000 brk(0x555556616c40) = 0x555556616c40 arch_prctl(ARCH_SET_FS, 0x555556616300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1090894197", 4096) = 28 brk(0x555556637c40) = 0x555556637c40 brk(0x555556638000) = 0x555556638000 mprotect(0x7f17191f2000, 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 5086 attached , child_tidptr=0x5555566165d0) = 5086 [pid 5086] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setsid() = 1 [pid 5086] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5086] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5086] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5086] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5086] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5086] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5086] unshare(CLONE_NEWNS) = 0 [pid 5086] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5086] unshare(CLONE_NEWIPC) = 0 [pid 5086] unshare(CLONE_NEWCGROUP) = 0 [pid 5086] unshare(CLONE_NEWUTS) = 0 [pid 5086] unshare(CLONE_SYSVSEM) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "16777216", 8) = 8 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "536870912", 9) = 9 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1024", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "8192", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1024", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1024", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5086] close(3) = 0 [pid 5086] getpid() = 1 [pid 5086] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 67 [ 79.225197][ T9] RSP: 0018:ffffc900000e6bb0 EFLAGS: 00010207 [ 79.231279][ T9] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.239261][ T9] RDX: 0000000000000028 RSI: ffffffff849f2afb RDI: ffff888079558338 [ 79.247252][ T9] RBP: ffffc900000e6c48 R08: 0000000000000005 R09: 0000000000000000 [ 79.255232][ T9] R10: 0000000000000001 R11: 0000000000000010 R12: ffff8880795590d8 [ 79.263222][ T9] R13: 0000000000000144 R14: ffff8880795590d8 R15: dffffc0000000000 [ 79.271206][ T9] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 79.280154][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.286765][ T9] CR2: 00007f17191c7688 CR3: 00000000281af000 CR4: 00000000003506f0 [ 79.294751][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.302732][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.310716][ T9] Call Trace: [ 79.314010][ T9] [ 79.316949][ T9] drm_atomic_helper_wait_for_fences+0x1b4/0x780 [ 79.323319][ T9] ? drm_atomic_helper_check+0x190/0x190 [ 79.328992][ T9] ? drm_atomic_helper_prepare_planes+0x59b/0xba0 [ 79.335444][ T9] drm_atomic_helper_commit+0x1bd/0x370 [ 79.341023][ T9] ? drm_atomic_helper_setup_commit+0x1770/0x1770 [ 79.347475][ T9] drm_atomic_commit+0x20a/0x300 [ 79.352472][ T9] ? drm_atomic_state_alloc+0x110/0x110 [ 79.358043][ T9] ? __drm_printfn_seq_file+0x50/0x50 [ 79.363444][ T9] ? drm_client_rotation+0x45b/0x730 [ 79.368751][ T9] drm_client_modeset_commit_atomic+0x69b/0x7e0 [ 79.375019][ T9] ? __mutex_lock+0x231/0x1350 [ 79.379827][ T9] ? drm_client_rotation+0x730/0x730 [ 79.385133][ T9] ? __mutex_lock+0x231/0x1350 [ 79.389916][ T9] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 79.395587][ T9] ? wait_for_completion_io_timeout+0x20/0x20 [ 79.401688][ T9] ? __drm_fb_helper_initial_config_and_unlock+0xe71/0x1510 [ 79.409011][ T9] drm_client_modeset_commit_locked+0x149/0x580 [ 79.415280][ T9] drm_client_modeset_commit+0x51/0x80 [ 79.420765][ T9] __drm_fb_helper_initial_config_and_unlock+0x118a/0x1510 [ 79.428007][ T9] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 79.433587][ T9] ? drm_fb_helper_find_color_mode_format.isra.0+0x1e0/0x1e0 [ 79.440999][ T9] ? drm_prime_init_file_private+0x23/0x90 [ 79.446828][ T9] ? drm_file_alloc+0x548/0x950 [ 79.451703][ T9] drm_fb_helper_initial_config+0x42/0x60 [ 79.457460][ T9] drm_fbdev_generic_client_hotplug+0x1ab/0x270 [ 79.463736][ T9] drm_fbdev_generic_setup+0x127/0x3b0 [ 79.469228][ T9] udl_usb_probe+0x120/0x190 [ 79.473841][ T9] usb_probe_interface+0x30f/0x960 [ 79.478979][ T9] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 79.484373][ T9] really_probe+0x240/0xca0 [ 79.488911][ T9] __driver_probe_device+0x1df/0x4d0 [ 79.494229][ T9] ? usb_match_id.part.0+0x15d/0x1b0 [ 79.499537][ T9] driver_probe_device+0x4c/0x1a0 [ 79.504586][ T9] __device_attach_driver+0x1d4/0x2e0 [ 79.509995][ T9] bus_for_each_drv+0x149/0x1d0 [ 79.514868][ T9] ? driver_probe_device+0x1a0/0x1a0 [ 79.520178][ T9] ? bus_for_each_dev+0x1c0/0x1c0 [ 79.525223][ T9] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 79.531059][ T9] ? lockdep_hardirqs_on+0x7d/0x100 [ 79.536278][ T9] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 79.542138][ T9] __device_attach+0x1e4/0x4b0 [ 79.546994][ T9] ? device_driver_attach+0x210/0x210 [ 79.552433][ T9] ? do_raw_spin_unlock+0x175/0x230 [ 79.557695][ T9] bus_probe_device+0x17c/0x1c0 [ 79.562581][ T9] device_add+0x11c4/0x1c50 [ 79.567135][ T9] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 79.574005][ T9] ? mark_held_locks+0x9f/0xe0 [ 79.578803][ T9] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 79.584641][ T9] usb_set_configuration+0x10ee/0x1af0 [ 79.590131][ T9] usb_generic_driver_probe+0xcf/0x130 [ 79.595626][ T9] usb_probe_device+0xd8/0x2c0 [ 79.600416][ T9] ? usb_driver_release_interface+0x190/0x190 [ 79.606506][ T9] really_probe+0x240/0xca0 [ 79.611035][ T9] __driver_probe_device+0x1df/0x4d0 [ 79.616355][ T9] driver_probe_device+0x4c/0x1a0 [ 79.621410][ T9] __device_attach_driver+0x1d4/0x2e0 [ 79.626810][ T9] bus_for_each_drv+0x149/0x1d0 [ 79.631685][ T9] ? driver_probe_device+0x1a0/0x1a0 [ 79.636997][ T9] ? bus_for_each_dev+0x1c0/0x1c0 [ 79.642139][ T9] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 79.647971][ T9] ? lockdep_hardirqs_on+0x7d/0x100 [ 79.653360][ T9] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 79.659192][ T9] __device_attach+0x1e4/0x4b0 [ 79.664004][ T9] ? device_driver_attach+0x210/0x210 [ 79.669405][ T9] ? do_raw_spin_unlock+0x175/0x230 [ 79.674639][ T9] bus_probe_device+0x17c/0x1c0 [ 79.679778][ T9] device_add+0x11c4/0x1c50 [ 79.684305][ T9] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 79.691180][ T9] ? usb_detect_static_quirks+0x305/0x3b0 [ 79.696936][ T9] ? mark_held_locks+0x9f/0xe0 [ 79.701731][ T9] usb_new_device+0xcb2/0x19d0 [ 79.706542][ T9] ? hub_disconnect+0x510/0x510 [ 79.711432][ T9] ? _raw_spin_unlock_irq+0x23/0x50 [ 79.716662][ T9] hub_event+0x2d9e/0x4e40 [ 79.721125][ T9] ? hub_port_debounce+0x3b0/0x3b0 [ 79.726269][ T9] ? lock_sync+0x190/0x190 [ 79.730719][ T9] ? rcu_is_watching+0x12/0xb0 [ 79.735518][ T9] ? trace_lock_acquire+0x12d/0x180 [ 79.740740][ T9] ? process_one_work+0x8b7/0x15e0 [ 79.745881][ T9] ? lock_acquire+0x32/0xc0 [ 79.750411][ T9] ? process_one_work+0x8b7/0x15e0 [ 79.755553][ T9] process_one_work+0x99a/0x15e0 [ 79.760523][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 79.765923][ T9] ? rcu_is_watching+0x12/0xb0 [ 79.771017][ T9] ? spin_bug+0x1c0/0x1c0 [ 79.775379][ T9] ? lock_acquire+0x32/0xc0 [ 79.779919][ T9] ? worker_thread+0x16d/0x10c0 [ 79.784800][ T9] worker_thread+0x67d/0x10c0 [ 79.789512][ T9] ? process_one_work+0x15e0/0x15e0 [ 79.794743][ T9] kthread+0x33e/0x440 [ 79.798833][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 79.804489][ T9] ret_from_fork+0x1f/0x30 [ 79.808943][ T9] [ 79.811968][ T9] Modules linked in: [ 79.818794][ T9] ---[ end trace 0000000000000000 ]--- [ 79.826339][ T9] RIP: 0010:drm_crtc_next_vblank_start+0xb3/0x2b0 [ 79.832893][ T9] Code: e8 01 00 00 48 69 db 38 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 03 9d 38 03 00 00 4c 8d ab 44 01 00 00 4c 89 ea 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 67 [ 79.852634][ T9] RSP: 0018:ffffc900000e6bb0 EFLAGS: 00010207 [ 79.858765][ T9] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 79.866753][ T9] RDX: 0000000000000028 RSI: ffffffff849f2afb RDI: ffff888079558338 [ 79.874775][ T9] RBP: ffffc900000e6c48 R08: 0000000000000005 R09: 0000000000000000 [ 79.882930][ T9] R10: 0000000000000001 R11: 0000000000000010 R12: ffff8880795590d8 [ 79.891001][ T9] R13: 0000000000000144 R14: ffff8880795590d8 R15: dffffc0000000000 [ 79.899053][ T9] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 79.908092][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.914698][ T9] CR2: 00007f17191c7688 CR3: 000000002b398000 CR4: 00000000003506f0 [ 79.922755][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.930786][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.938990][ T9] Kernel panic - not syncing: Fatal exception [ 79.945279][ T9] Kernel Offset: disabled [ 79.949614][ T9] Rebooting in 86400 seconds..