Warning: Permanently added '10.128.1.52' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 907.897728] audit: type=1400 audit(1595277932.639:8): avc: denied { execmem } for pid=6337 comm="syz-executor249" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 1144.683020] INFO: task syz-executor249:6346 blocked for more than 140 seconds. [ 1144.683027] Not tainted 4.14.184-syzkaller #0 [ 1144.683030] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.683035] syz-executor249 D28928 6346 6339 0x00000004 [ 1144.683106] Call Trace: [ 1144.683199] __schedule+0x8a6/0x1d70 [ 1144.683255] ? bad_range+0x255/0x3a0 [ 1144.683280] ? firmware_map_remove+0x18f/0x18f [ 1144.683309] ? __lock_acquire+0x655/0x42a0 [ 1144.683317] ? __down+0x133/0x280 [ 1144.683323] schedule+0x8d/0x1b0 [ 1144.683331] schedule_timeout+0x86c/0xe50 [ 1144.683342] ? usleep_range+0x130/0x130 [ 1144.683350] ? __down+0x177/0x280 [ 1144.683361] ? lock_downgrade+0x6e0/0x6e0 [ 1144.683370] ? _raw_spin_unlock_irq+0x24/0x90 [ 1144.683379] ? __down+0x133/0x280 [ 1144.683385] __down+0x17f/0x280 [ 1144.683396] ? ww_mutex_lock+0x180/0x180 [ 1144.683401] ? down+0xd/0x80 [ 1144.683414] down+0x57/0x80 [ 1144.683440] console_lock+0x24/0x70 [ 1144.683490] do_fb_ioctl+0x36a/0x840 [ 1144.683497] ? lock_downgrade+0x6e0/0x6e0 [ 1144.683505] ? fb_write+0x550/0x550 [ 1144.683534] ? avc_has_extended_perms+0x6e2/0xbe0 [ 1144.683546] ? avc_ss_reset+0x100/0x100 [ 1144.683589] ? wp_page_copy+0xfb6/0x1bc0 [ 1144.683604] ? add_mm_counter_fast.part.0+0x30/0x30 [ 1144.683611] ? __lock_acquire+0x655/0x42a0 [ 1144.683636] ? debug_check_no_obj_freed+0x27c/0x5fd [ 1144.683660] fb_ioctl+0xda/0x120 [ 1144.683666] ? do_fb_ioctl+0x840/0x840 [ 1144.683682] do_vfs_ioctl+0x75a/0xfe0 [ 1144.683715] ? selinux_parse_skb.constprop.0+0x16c0/0x16c0 [ 1144.683724] ? ioctl_preallocate+0x1a0/0x1a0 [ 1144.683736] ? lock_downgrade+0x6e0/0x6e0 [ 1144.683765] ? security_file_ioctl+0x76/0xb0 [ 1144.683773] ? security_file_ioctl+0x83/0xb0 [ 1144.683782] SyS_ioctl+0x7f/0xb0 [ 1144.683788] ? do_vfs_ioctl+0xfe0/0xfe0 [ 1144.683799] do_syscall_64+0x1d5/0x640 [ 1144.683813] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.683821] RIP: 0033:0x4414e9 [ 1144.683825] RSP: 002b:00007ffd27ceeff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1144.683834] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414e9 [ 1144.683839] RDX: 0000000020000280 RSI: 0000000000004601 RDI: 0000000000000003 [ 1144.683844] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 1144.683849] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021e0 [ 1144.683854] R13: 0000000000402270 R14: 0000000000000000 R15: 0000000000000000 [ 1144.683871] INFO: task syz-executor249:6347 blocked for more than 140 seconds. [ 1144.683876] Not tainted 4.14.184-syzkaller #0 [ 1144.683879] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.683883] syz-executor249 D28928 6347 6342 0x00000004 [ 1144.683899] Call Trace: [ 1144.683911] __schedule+0x8a6/0x1d70 [ 1144.683918] ? bad_range+0x255/0x3a0 [ 1144.683943] ? firmware_map_remove+0x18f/0x18f [ 1144.683951] ? __lock_acquire+0x655/0x42a0 [ 1144.683959] ? __down+0x133/0x280 [ 1144.683965] schedule+0x8d/0x1b0 [ 1144.683972] schedule_timeout+0x86c/0xe50 [ 1144.683983] ? usleep_range+0x130/0x130 [ 1144.683990] ? __down+0x177/0x280 [ 1144.684001] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684010] ? _raw_spin_unlock_irq+0x24/0x90 [ 1144.684019] ? __down+0x133/0x280 [ 1144.684025] __down+0x17f/0x280 [ 1144.684035] ? ww_mutex_lock+0x180/0x180 [ 1144.684041] ? down+0xd/0x80 [ 1144.684054] down+0x57/0x80 [ 1144.684062] console_lock+0x24/0x70 [ 1144.684068] do_fb_ioctl+0x36a/0x840 [ 1144.684074] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684082] ? fb_write+0x550/0x550 [ 1144.684092] ? avc_has_extended_perms+0x6e2/0xbe0 [ 1144.684103] ? avc_ss_reset+0x100/0x100 [ 1144.684112] ? wp_page_copy+0xfb6/0x1bc0 [ 1144.684126] ? add_mm_counter_fast.part.0+0x30/0x30 [ 1144.684133] ? __lock_acquire+0x655/0x42a0 [ 1144.684140] ? debug_check_no_obj_freed+0x27c/0x5fd [ 1144.684162] fb_ioctl+0xda/0x120 [ 1144.684168] ? do_fb_ioctl+0x840/0x840 [ 1144.684176] do_vfs_ioctl+0x75a/0xfe0 [ 1144.684185] ? selinux_parse_skb.constprop.0+0x16c0/0x16c0 [ 1144.684193] ? ioctl_preallocate+0x1a0/0x1a0 [ 1144.684203] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684214] ? security_file_ioctl+0x76/0xb0 [ 1144.684222] ? security_file_ioctl+0x83/0xb0 [ 1144.684230] SyS_ioctl+0x7f/0xb0 [ 1144.684236] ? do_vfs_ioctl+0xfe0/0xfe0 [ 1144.684245] do_syscall_64+0x1d5/0x640 [ 1144.684258] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.684263] RIP: 0033:0x4414e9 [ 1144.684267] RSP: 002b:00007ffd27ceeff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1144.684275] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414e9 [ 1144.684280] RDX: 0000000020000280 RSI: 0000000000004601 RDI: 0000000000000003 [ 1144.684285] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 1144.684289] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021e0 [ 1144.684294] R13: 0000000000402270 R14: 0000000000000000 R15: 0000000000000000 [ 1144.684309] INFO: task syz-executor249:6348 blocked for more than 140 seconds. [ 1144.684313] Not tainted 4.14.184-syzkaller #0 [ 1144.684316] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.684320] syz-executor249 D28928 6348 6340 0x00000004 [ 1144.684333] Call Trace: [ 1144.684344] __schedule+0x8a6/0x1d70 [ 1144.684351] ? bad_range+0x255/0x3a0 [ 1144.684363] ? firmware_map_remove+0x18f/0x18f [ 1144.684372] ? __lock_acquire+0x655/0x42a0 [ 1144.684380] ? __down+0x133/0x280 [ 1144.684386] schedule+0x8d/0x1b0 [ 1144.684393] schedule_timeout+0x86c/0xe50 [ 1144.684404] ? usleep_range+0x130/0x130 [ 1144.684411] ? __down+0x177/0x280 [ 1144.684422] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684430] ? _raw_spin_unlock_irq+0x24/0x90 [ 1144.684440] ? __down+0x133/0x280 [ 1144.684446] __down+0x17f/0x280 [ 1144.684456] ? ww_mutex_lock+0x180/0x180 [ 1144.684461] ? down+0xd/0x80 [ 1144.684474] down+0x57/0x80 [ 1144.684482] console_lock+0x24/0x70 [ 1144.684488] do_fb_ioctl+0x36a/0x840 [ 1144.684495] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684502] ? fb_write+0x550/0x550 [ 1144.684512] ? avc_has_extended_perms+0x6e2/0xbe0 [ 1144.684523] ? avc_ss_reset+0x100/0x100 [ 1144.684532] ? wp_page_copy+0xfb6/0x1bc0 [ 1144.684546] ? add_mm_counter_fast.part.0+0x30/0x30 [ 1144.684553] ? __lock_acquire+0x655/0x42a0 [ 1144.684560] ? debug_check_no_obj_freed+0x27c/0x5fd [ 1144.684582] fb_ioctl+0xda/0x120 [ 1144.684588] ? do_fb_ioctl+0x840/0x840 [ 1144.684596] do_vfs_ioctl+0x75a/0xfe0 [ 1144.684605] ? selinux_parse_skb.constprop.0+0x16c0/0x16c0 [ 1144.684613] ? ioctl_preallocate+0x1a0/0x1a0 [ 1144.684624] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684635] ? security_file_ioctl+0x76/0xb0 [ 1144.684643] ? security_file_ioctl+0x83/0xb0 [ 1144.684651] SyS_ioctl+0x7f/0xb0 [ 1144.684657] ? do_vfs_ioctl+0xfe0/0xfe0 [ 1144.684666] do_syscall_64+0x1d5/0x640 [ 1144.684679] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.684684] RIP: 0033:0x4414e9 [ 1144.684688] RSP: 002b:00007ffd27ceeff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1144.684702] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414e9 [ 1144.684706] RDX: 0000000020000280 RSI: 0000000000004601 RDI: 0000000000000003 [ 1144.684711] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 1144.684715] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021e0 [ 1144.684720] R13: 0000000000402270 R14: 0000000000000000 R15: 0000000000000000 [ 1144.684736] INFO: task syz-executor249:6349 blocked for more than 140 seconds. [ 1144.684740] Not tainted 4.14.184-syzkaller #0 [ 1144.684743] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1144.684746] syz-executor249 D28928 6349 6338 0x00000004 [ 1144.684761] Call Trace: [ 1144.684772] __schedule+0x8a6/0x1d70 [ 1144.684779] ? bad_range+0x255/0x3a0 [ 1144.684791] ? firmware_map_remove+0x18f/0x18f [ 1144.684800] ? __lock_acquire+0x655/0x42a0 [ 1144.684808] ? __down+0x133/0x280 [ 1144.684814] schedule+0x8d/0x1b0 [ 1144.684821] schedule_timeout+0x86c/0xe50 [ 1144.684831] ? usleep_range+0x130/0x130 [ 1144.684839] ? __down+0x177/0x280 [ 1144.684850] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684858] ? _raw_spin_unlock_irq+0x24/0x90 [ 1144.684868] ? __down+0x133/0x280 [ 1144.684874] __down+0x17f/0x280 [ 1144.684884] ? ww_mutex_lock+0x180/0x180 [ 1144.684889] ? down+0xd/0x80 [ 1144.684902] down+0x57/0x80 [ 1144.684910] console_lock+0x24/0x70 [ 1144.684916] do_fb_ioctl+0x36a/0x840 [ 1144.684923] ? lock_downgrade+0x6e0/0x6e0 [ 1144.684930] ? fb_write+0x550/0x550 [ 1144.684940] ? avc_has_extended_perms+0x6e2/0xbe0 [ 1144.684951] ? avc_ss_reset+0x100/0x100 [ 1144.684960] ? wp_page_copy+0xfb6/0x1bc0 [ 1144.684975] ? add_mm_counter_fast.part.0+0x30/0x30 [ 1144.684981] ? __lock_acquire+0x655/0x42a0 [ 1144.684988] ? debug_check_no_obj_freed+0x27c/0x5fd [ 1144.685010] fb_ioctl+0xda/0x120 [ 1144.685016] ? do_fb_ioctl+0x840/0x840 [ 1144.685024] do_vfs_ioctl+0x75a/0xfe0 [ 1144.685033] ? selinux_parse_skb.constprop.0+0x16c0/0x16c0 [ 1144.685041] ? ioctl_preallocate+0x1a0/0x1a0 [ 1144.685052] ? lock_downgrade+0x6e0/0x6e0 [ 1144.685063] ? security_file_ioctl+0x76/0xb0 [ 1144.685071] ? security_file_ioctl+0x83/0xb0 [ 1144.685079] SyS_ioctl+0x7f/0xb0 [ 1144.685086] ? do_vfs_ioctl+0xfe0/0xfe0 [ 1144.685095] do_syscall_64+0x1d5/0x640 [ 1144.685108] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.685113] RIP: 0033:0x4414e9 [ 1144.685117] RSP: 002b:00007ffd27ceeff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1144.685125] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414e9 [ 1144.685129] RDX: 0000000020000280 RSI: 0000000000004601 RDI: 0000000000000003 [ 1144.685134] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 1144.685138] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021e0 [ 1144.685143] R13: 0000000000402270 R14: 0000000000000000 R15: 0000000000000000 [ 1144.685158] [ 1144.685158] Showing all locks held in the system: [ 1144.685167] 1 lock held by khungtaskd/1057: [ 1144.685170] #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a [ 1144.685204] 1 lock held by in:imklog/5956: [ 1144.685207] #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa6/0xc0 [ 1144.685228] 1 lock held by syz-executor249/6344: [ 1144.685230] #0: (&fb_info->lock){+.+.}, at: [] fb_release+0x4e/0x140 [ 1144.685246] [ 1144.685249] ============================================= [ 1144.685249] [ 1144.685253] NMI backtrace for cpu 0 [ 1144.685261] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 4.14.184-syzkaller #0 [ 1144.685265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1144.685268] Call Trace: [ 1144.685301] dump_stack+0x1b2/0x283 [ 1144.685312] nmi_cpu_backtrace.cold+0x57/0x93 [ 1144.685321] ? irq_force_complete_move.cold+0x7b/0x7b [ 1144.685329] nmi_trigger_cpumask_backtrace+0x13a/0x17f [ 1144.685370] watchdog+0x5e2/0xb80 [ 1144.685380] ? kthread_flush_work_fn+0x20/0x20 [ 1144.685390] ? hungtask_pm_notify+0x50/0x50 [ 1144.685399] kthread+0x30d/0x420 [ 1144.685407] ? kthread_create_on_node+0xd0/0xd0 [ 1144.685416] ret_from_fork+0x24/0x30 [ 1144.685432] Sending NMI from CPU 0 to CPUs 1: [ 1144.685932] NMI backtrace for cpu 1 [ 1144.685936] CPU: 1 PID: 6345 Comm: syz-executor249 Not tainted 4.14.184-syzkaller #0 [ 1144.685940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1144.685943] task: ffff888099080040 task.stack: ffff88809a378000 [ 1144.685945] RIP: 0010:__sanitizer_cov_trace_pc+0x1d/0x50 [ 1144.685947] RSP: 0018:ffff88809a37f320 EFLAGS: 00000246 [ 1144.685952] RAX: ffff888099080040 RBX: ffff8880000a0000 RCX: 0000000000000000 [ 1144.685955] RDX: 0000000000000000 RSI: ffff8880000a0000 RDI: 0000000000001400 [ 1144.685958] RBP: 0000000000001400 R08: 0000000000001400 R09: 0000000000000040 [ 1144.685960] R10: ffffed1014bd5ef3 R11: ffff8880a5eaf79f R12: 0000000000000040 [ 1144.685963] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1144.685966] FS: 000000000133f880(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 [ 1144.685969] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1144.685972] CR2: 000055afcbfb0e98 CR3: 0000000088d41000 CR4: 00000000001406e0 [ 1144.685975] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1144.685977] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1144.685979] Call Trace: [ 1144.685981] bitfill_aligned+0xab/0x190 [ 1144.685983] cfb_fillrect+0x3d5/0x720 [ 1144.685985] ? cfb_fillrect+0x720/0x720 [ 1144.685987] vga16fb_fillrect+0x61e/0x1880 [ 1144.685989] ? fb_copy_cmap+0x28e/0x350 [ 1144.685991] ? vga16fb_setcolreg+0xfe/0x360 [ 1144.685993] bit_clear_margins+0x2a4/0x480 [ 1144.685994] ? bit_clear+0x460/0x460 [ 1144.685996] fbcon_clear_margins+0x274/0x300 [ 1144.685998] fbcon_switch+0xc4e/0x1700 [ 1144.686000] ? fbcon_set_font+0x7c0/0x7c0 [ 1144.686002] ? bit_update_start+0x1f0/0x1f0 [ 1144.686004] ? fbcon_set_origin+0x1c/0x40 [ 1144.686006] ? fbcon_scrolldelta+0x1080/0x1080 [ 1144.686008] redraw_screen+0x332/0x760 [ 1144.686010] ? set_palette+0x130/0x130 [ 1144.686012] ? fbcon_set_palette+0x466/0x580 [ 1144.686014] fbcon_modechanged+0x552/0x800 [ 1144.686016] fbcon_event_notify+0x11a/0x1750 [ 1144.686018] ? lock_acquire+0x170/0x3f0 [ 1144.686020] notifier_call_chain+0x107/0x1a0 [ 1144.686023] blocking_notifier_call_chain+0x79/0x90 [ 1144.686025] fb_set_var+0xaad/0xc70 [ 1144.686027] ? fb_set_suspend+0x110/0x110 [ 1144.686029] ? lock_acquire+0x170/0x3f0 [ 1144.686030] ? lock_fb_info+0x1a/0x70 [ 1144.686032] ? lock_fb_info+0x1a/0x70 [ 1144.686034] ? __mutex_lock+0x2cb/0x1430 [ 1144.686036] ? trace_hardirqs_on+0x10/0x10 [ 1144.686038] ? lock_fb_info+0x1a/0x70 [ 1144.686041] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 1144.686042] ? do_fb_ioctl+0x36a/0x840 [ 1144.686044] do_fb_ioctl+0x3cc/0x840 [ 1144.686046] ? lock_downgrade+0x6e0/0x6e0 [ 1144.686048] ? fb_write+0x550/0x550 [ 1144.686050] ? avc_has_extended_perms+0x6e2/0xbe0 [ 1144.686052] ? avc_ss_reset+0x100/0x100 [ 1144.686054] ? wp_page_copy+0xfb6/0x1bc0 [ 1144.686056] ? add_mm_counter_fast.part.0+0x30/0x30 [ 1144.686058] ? __lock_acquire+0x655/0x42a0 [ 1144.686061] ? debug_check_no_obj_freed+0x27c/0x5fd [ 1144.686062] fb_ioctl+0xda/0x120 [ 1144.686064] ? do_fb_ioctl+0x840/0x840 [ 1144.686066] do_vfs_ioctl+0x75a/0xfe0 [ 1144.686069] ? selinux_parse_skb.constprop.0+0x16c0/0x16c0 [ 1144.686071] ? ioctl_preallocate+0x1a0/0x1a0 [ 1144.686073] ? lock_downgrade+0x6e0/0x6e0 [ 1144.686075] ? security_file_ioctl+0x76/0xb0 [ 1144.686077] ? security_file_ioctl+0x83/0xb0 [ 1144.686079] SyS_ioctl+0x7f/0xb0 [ 1144.686081] ? do_vfs_ioctl+0xfe0/0xfe0 [ 1144.686082] do_syscall_64+0x1d5/0x640 [ 1144.686085] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 1144.686086] RIP: 0033:0x4414e9 [ 1144.686089] RSP: 002b:00007ffd27ceeff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1144.686094] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004414e9 [ 1144.686096] RDX: 0000000020000280 RSI: 0000000000004601 RDI: 0000000000000003 [ 1144.686099] RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 [ 1144.686102] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004021e0 [ 1144.686105] R13: 0000000000402270 R14: 0000000000000000 R15: 0000000000000000 [ 1144.686106] Code: 26 f2 dd 08 00 00 00 00 e9 be ed ff ff 90 65 48 8b 04 25 40 ee 01 00 48 85 c0 74 1a 65 8b 15 db 47 a7 7e 81 e2 00 01 1f 00 75 0b <8b> 90 58 13 00 00 83 fa 01 74 01 c3 48 8b 34 24 48 8b 88 60 13 [ 1144.686445] Kernel panic - not syncing: hung_task: blocked tasks [ 1144.686452] CPU: 0 PID: 1057 Comm: khungtaskd Not tainted 4.14.184-syzkaller #0 [ 1144.686456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1144.686459] Call Trace: [ 1144.686468] dump_stack+0x1b2/0x283 [ 1144.686481] panic+0x1f9/0x42d [ 1144.686489] ? add_taint.cold+0x16/0x16 [ 1144.686500] ? printk_safe_flush+0xac/0x110 [ 1144.686513] watchdog+0x5f3/0xb80 [ 1144.686522] ? kthread_flush_work_fn+0x20/0x20 [ 1144.686532] ? hungtask_pm_notify+0x50/0x50 [ 1144.686541] kthread+0x30d/0x420 [ 1144.686549] ? kthread_create_on_node+0xd0/0xd0 [ 1144.686558] ret_from_fork+0x24/0x30 [ 1144.688221] Kernel Offset: disabled