[ 48.626255] audit: type=1800 audit(1555568382.783:27): pid=5583 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [ 48.645795] audit: type=1800 audit(1555568382.793:28): pid=5583 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 49.409220] audit: type=1800 audit(1555568383.603:29): pid=5583 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 49.428606] audit: type=1800 audit(1555568383.603:30): pid=5583 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.161' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 57.030818] IPVS: ftp: loaded support on port[0] = 21 [ 57.345537] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 57.585499] usb 1-1: Using ep0 maxpacket: 8 [ 57.705638] usb 1-1: config 0 has an invalid interface number: 28 but max is 0 [ 57.713141] usb 1-1: config 0 has no interface number 0 [ 57.718686] usb 1-1: New USB device found, idVendor=04fa, idProduct=2490, bcdDevice=74.f9 [ 57.727376] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 57.736661] usb 1-1: config 0 descriptor?? [ 57.975737] ================================================================== [ 57.983263] BUG: KASAN: slab-out-of-bounds in ds_probe+0x604/0x760 [ 57.989601] Read of size 1 at addr ffff88821b324fe2 by task kworker/0:2/551 [ 57.996686] [ 57.998305] CPU: 0 PID: 551 Comm: kworker/0:2 Not tainted 5.1.0-rc5-319617-gd34f951 #4 [ 58.006345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.015700] Workqueue: usb_hub_wq hub_event [ 58.020006] Call Trace: [ 58.022587] dump_stack+0xe8/0x16e [ 58.026117] ? ds_probe+0x604/0x760 [ 58.029730] ? ds_probe+0x604/0x760 [ 58.033366] print_address_description+0x6c/0x236 [ 58.038197] ? ds_probe+0x604/0x760 [ 58.041822] ? ds_probe+0x604/0x760 [ 58.045454] kasan_report.cold+0x1a/0x3c [ 58.049513] ? ds_probe+0x604/0x760 [ 58.053134] ds_probe+0x604/0x760 [ 58.056583] usb_probe_interface+0x31d/0x820 [ 58.060989] ? usb_probe_device+0x150/0x150 [ 58.065314] really_probe+0x2da/0xb10 [ 58.069117] driver_probe_device+0x21d/0x350 [ 58.073526] __device_attach_driver+0x1d8/0x290 [ 58.078197] ? driver_allows_async_probing+0x160/0x160 [ 58.083473] bus_for_each_drv+0x163/0x1e0 [ 58.087623] ? bus_rescan_devices+0x30/0x30 [ 58.091960] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 58.097069] ? lockdep_hardirqs_on+0x37e/0x580 [ 58.101654] __device_attach+0x223/0x3a0 [ 58.105715] ? device_bind_driver+0xe0/0xe0 [ 58.110210] ? kobject_uevent_env+0x295/0x13d0 [ 58.114788] bus_probe_device+0x1f1/0x2a0 [ 58.118936] ? blocking_notifier_call_chain+0x59/0xb0 [ 58.124138] device_add+0xad2/0x16e0 [ 58.127873] ? get_device_parent.isra.0+0x560/0x560 [ 58.132888] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 58.138014] usb_set_configuration+0xdf7/0x1740 [ 58.142698] generic_probe+0xa2/0xda [ 58.146411] usb_probe_device+0xc0/0x150 [ 58.150472] ? usb_suspend+0x5f0/0x5f0 [ 58.154351] really_probe+0x2da/0xb10 [ 58.158151] driver_probe_device+0x21d/0x350 [ 58.162560] __device_attach_driver+0x1d8/0x290 [ 58.167268] ? driver_allows_async_probing+0x160/0x160 [ 58.172554] bus_for_each_drv+0x163/0x1e0 [ 58.176705] ? bus_rescan_devices+0x30/0x30 [ 58.181033] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 58.186146] ? lockdep_hardirqs_on+0x37e/0x580 [ 58.190837] __device_attach+0x223/0x3a0 [ 58.194908] ? device_bind_driver+0xe0/0xe0 [ 58.199241] ? kobject_uevent_env+0x295/0x13d0 [ 58.203816] bus_probe_device+0x1f1/0x2a0 [ 58.207958] ? blocking_notifier_call_chain+0x59/0xb0 [ 58.213155] device_add+0xad2/0x16e0 [ 58.216885] ? get_device_parent.isra.0+0x560/0x560 [ 58.221923] usb_new_device.cold+0x537/0xccf [ 58.226350] hub_event+0x1398/0x3b00 [ 58.230094] ? hub_port_debounce+0x350/0x350 [ 58.234501] ? _raw_spin_unlock_irq+0x29/0x40 [ 58.239016] process_one_work+0x90f/0x1580 [ 58.243255] ? wq_pool_ids_show+0x300/0x300 [ 58.247569] ? do_raw_spin_lock+0x11f/0x290 [ 58.251889] worker_thread+0x9b/0xe20 [ 58.255685] ? process_one_work+0x1580/0x1580 [ 58.260169] kthread+0x313/0x420 [ 58.263546] ? kthread_park+0x1a0/0x1a0 [ 58.267514] ret_from_fork+0x3a/0x50 [ 58.271229] [ 58.272835] Allocated by task 551: [ 58.276396] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 58.281316] usb_get_configuration+0xc4c/0x32b0 [ 58.285973] usb_new_device+0x2fe/0x450 [ 58.289935] hub_event+0x1398/0x3b00 [ 58.293633] process_one_work+0x90f/0x1580 [ 58.297853] worker_thread+0x9b/0xe20 [ 58.301639] kthread+0x313/0x420 [ 58.305009] ret_from_fork+0x3a/0x50 [ 58.308719] [ 58.310325] Freed by task 1: [ 58.313327] __kasan_slab_free+0x130/0x180 [ 58.317550] slab_free_freelist_hook+0x5e/0x140 [ 58.322197] kfree+0xce/0x280 [ 58.325283] krealloc+0x7d/0xc0 [ 58.328548] add_sysfs_param.isra.0+0x154/0x930 [ 58.333200] param_sysfs_init+0x364/0x435 [ 58.337332] do_one_initcall+0xde/0x597 [ 58.341301] kernel_init_freeable+0x4da/0x5c7 [ 58.345783] kernel_init+0x12/0x1ca [ 58.349397] ret_from_fork+0x3a/0x50 [ 58.353088] [ 58.354702] The buggy address belongs to the object at ffff88821b324f60 [ 58.354702] which belongs to the cache kmalloc-64 of size 64 [ 58.367173] The buggy address is located 66 bytes to the right of [ 58.367173] 64-byte region [ffff88821b324f60, ffff88821b324fa0) [ 58.379387] The buggy address belongs to the page: [ 58.384313] page:ffffea00086cc900 count:1 mapcount:0 mapping:ffff88812c3f5600 index:0x0 [ 58.392472] flags: 0x57ff00000000200(slab) [ 58.396724] raw: 057ff00000000200 dead000000000100 dead000000000200 ffff88812c3f5600 [ 58.404605] raw: 0000000000000000 00000000802a002a 00000001ffffffff 0000000000000000 [ 58.412474] page dumped because: kasan: bad access detected [ 58.418174] [ 58.419801] Memory state around the buggy address: [ 58.424718] ffff88821b324e80: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc [ 58.432075] ffff88821b324f00: 00 00 00 00 00 00 00 fc fc fc fc fc 00 00 00 00 [ 58.439442] >ffff88821b324f80: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 58.446789] ^ [ 58.453268] ffff88821b325000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 58.460624] ffff88821b325080: 00 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00 [ 58.467970] ================================================================== [ 58.475336] Disabling lock debugging due to kernel taint [ 58.480922] Kernel panic - not syncing: panic_on_warn set ... [ 58.486832] CPU: 0 PID: 551 Comm: kworker/0:2 Tainted: G B 5.1.0-rc5-319617-gd34f951 #4 [ 58.496276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.505645] Workqueue: usb_hub_wq hub_event [ 58.509961] Call Trace: [ 58.512558] dump_stack+0xe8/0x16e [ 58.516111] panic+0x29d/0x5f2 [ 58.519307] ? __warn_printk+0xf8/0xf8 [ 58.523199] ? retint_kernel+0x10/0x10 [ 58.527093] ? trace_hardirqs_on+0x55/0x1c0 [ 58.531416] ? ds_probe+0x604/0x760 [ 58.535049] end_report+0x48/0x4e [ 58.538502] ? ds_probe+0x604/0x760 [ 58.542130] kasan_report.cold+0xd/0x3c [ 58.546103] ? ds_probe+0x604/0x760 [ 58.549728] ds_probe+0x604/0x760 [ 58.553186] usb_probe_interface+0x31d/0x820 [ 58.557600] ? usb_probe_device+0x150/0x150 [ 58.561922] really_probe+0x2da/0xb10 [ 58.565728] driver_probe_device+0x21d/0x350 [ 58.570138] __device_attach_driver+0x1d8/0x290 [ 58.574812] ? driver_allows_async_probing+0x160/0x160 [ 58.580101] bus_for_each_drv+0x163/0x1e0 [ 58.584260] ? bus_rescan_devices+0x30/0x30 [ 58.588591] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 58.593702] ? lockdep_hardirqs_on+0x37e/0x580 [ 58.598293] __device_attach+0x223/0x3a0 [ 58.602362] ? device_bind_driver+0xe0/0xe0 [ 58.606690] ? kobject_uevent_env+0x295/0x13d0 [ 58.611276] bus_probe_device+0x1f1/0x2a0 [ 58.615444] ? blocking_notifier_call_chain+0x59/0xb0 [ 58.620645] device_add+0xad2/0x16e0 [ 58.624457] ? get_device_parent.isra.0+0x560/0x560 [ 58.629483] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 58.634601] usb_set_configuration+0xdf7/0x1740 [ 58.639288] generic_probe+0xa2/0xda [ 58.643010] usb_probe_device+0xc0/0x150 [ 58.647079] ? usb_suspend+0x5f0/0x5f0 [ 58.650993] really_probe+0x2da/0xb10 [ 58.654806] driver_probe_device+0x21d/0x350 [ 58.659226] __device_attach_driver+0x1d8/0x290 [ 58.663907] ? driver_allows_async_probing+0x160/0x160 [ 58.669190] bus_for_each_drv+0x163/0x1e0 [ 58.673349] ? bus_rescan_devices+0x30/0x30 [ 58.677682] ? _raw_spin_unlock_irqrestore+0x4b/0x60 [ 58.682793] ? lockdep_hardirqs_on+0x37e/0x580 [ 58.687778] __device_attach+0x223/0x3a0 [ 58.691846] ? device_bind_driver+0xe0/0xe0 [ 58.696178] ? kobject_uevent_env+0x295/0x13d0 [ 58.700773] bus_probe_device+0x1f1/0x2a0 [ 58.704934] ? blocking_notifier_call_chain+0x59/0xb0 [ 58.710140] device_add+0xad2/0x16e0 [ 58.713869] ? get_device_parent.isra.0+0x560/0x560 [ 58.718899] usb_new_device.cold+0x537/0xccf [ 58.723314] hub_event+0x1398/0x3b00 [ 58.727049] ? hub_port_debounce+0x350/0x350 [ 58.731479] ? _raw_spin_unlock_irq+0x29/0x40 [ 58.735983] process_one_work+0x90f/0x1580 [ 58.740227] ? wq_pool_ids_show+0x300/0x300 [ 58.744553] ? do_raw_spin_lock+0x11f/0x290 [ 58.748884] worker_thread+0x9b/0xe20 [ 58.752697] ? process_one_work+0x1580/0x1580 [ 58.757196] kthread+0x313/0x420 [ 58.760576] ? kthread_park+0x1a0/0x1a0 [ 58.764565] ret_from_fork+0x3a/0x50 [ 58.769214] Kernel Offset: disabled [ 58.772849] Rebooting in 86400 seconds..