[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.176' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 134.679588][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 134.939557][ T7] usb 1-1: Using ep0 maxpacket: 8 [ 135.069731][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 135.079794][ T7] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0xE has invalid maxpacket 0 [ 135.090070][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x82 has invalid wMaxPacketSize 0 [ 135.100160][ T7] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 0 [ 135.110294][ T7] usb 1-1: New USB device found, idVendor=07b4, idProduct=010a, bcdDevice= 1.02 [ 135.119717][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 135.161569][ T7] usb 1-1: config 0 descriptor?? [ 135.201668][ T7] ums-alauda 1-1:0.0: USB Mass Storage device detected [ 135.229735][ T7] scsi host1: usb-storage 1-1:0.0 [ 136.270773][ T269] scsi 1:0:0:0: Direct-Access Olympus MAUSB-10 (Alauda 0102 PQ: 0 ANSI: 0 CCS [ 136.281338][ T269] scsi 1:0:0:1: Direct-Access Olympus MAUSB-10 (Alauda 0102 PQ: 0 ANSI: 0 CCS [ 136.299778][ T269] sd 1:0:0:0: Attached scsi generic sg1 type 0 executing program [ 136.316768][ T269] sd 1:0:0:1: Attached scsi generic sg2 type 0 [ 136.323779][ T1983] usb 1-1: USB disconnect, device number 2 [ 136.330369][ T8225] ===================================================== [ 136.337308][ T8225] BUG: KMSAN: uninit-value in alauda_check_media+0x2f9/0x30e0 [ 136.344812][ T8225] CPU: 0 PID: 8225 Comm: usb-storage Not tainted 5.12.0-rc6-syzkaller #0 [ 136.353236][ T8225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 136.363339][ T8225] Call Trace: [ 136.366629][ T8225] dump_stack+0x24c/0x2e0 [ 136.370996][ T8225] kmsan_report+0xfb/0x1e0 [ 136.375426][ T8225] __msan_warning+0x5c/0xa0 [ 136.379945][ T8225] alauda_check_media+0x2f9/0x30e0 [ 136.385082][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.391159][ T8225] ? sched_clock_cpu+0x5e/0x920 [ 136.396028][ T8225] alauda_transport+0x18a/0x5af0 [ 136.400980][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.407062][ T8225] ? __list_add_valid+0xb8/0x420 [ 136.412015][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.417224][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.422430][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.427636][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.433455][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.438666][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.444581][ T8225] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 136.450755][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.455984][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.461805][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.467017][ T8225] ? alauda_probe+0x270/0x270 [ 136.471708][ T8225] usb_stor_invoke_transport+0xe3/0x2ab0 [ 136.477359][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.483185][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.489265][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.494480][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.500303][ T8225] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 136.506484][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.511694][ T8225] ? kmsan_set_origin_checked+0xa2/0x100 [ 136.517339][ T8225] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 136.523489][ T8225] usb_stor_transparent_scsi_command+0x5d/0x70 [ 136.529665][ T8225] ? usb_stor_ufi_command+0x3e0/0x3e0 [ 136.535056][ T8225] usb_stor_control_thread+0x7b7/0xff0 [ 136.540535][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.545750][ T8225] ? __kthread_parkme+0x22b/0x250 [ 136.550793][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.556005][ T8225] kthread+0x521/0x560 [ 136.560108][ T8225] ? usb_stor_disconnect+0x3b0/0x3b0 [ 136.565674][ T8225] ? kthread_blkcg+0x110/0x110 [ 136.570456][ T8225] ret_from_fork+0x1f/0x30 [ 136.574891][ T8225] [ 136.577220][ T8225] Local variable ----status@alauda_check_media created at: [ 136.584407][ T8225] alauda_check_media+0x83/0x30e0 [ 136.589452][ T8225] alauda_check_media+0x83/0x30e0 [ 136.594492][ T8225] ===================================================== [ 136.601449][ T8225] Disabling lock debugging due to kernel taint [ 136.607619][ T8225] Kernel panic - not syncing: panic_on_kmsan set ... [ 136.614292][ T8225] CPU: 0 PID: 8225 Comm: usb-storage Tainted: G B 5.12.0-rc6-syzkaller #0 [ 136.624102][ T8225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 136.634340][ T8225] Call Trace: [ 136.637624][ T8225] dump_stack+0x24c/0x2e0 [ 136.641978][ T8225] panic+0x4c6/0xea7 [ 136.645904][ T8225] ? add_taint+0x17c/0x210 [ 136.650339][ T8225] kmsan_report+0x1de/0x1e0 [ 136.654858][ T8225] __msan_warning+0x5c/0xa0 [ 136.659374][ T8225] alauda_check_media+0x2f9/0x30e0 [ 136.664508][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.670600][ T8225] ? sched_clock_cpu+0x5e/0x920 [ 136.675470][ T8225] alauda_transport+0x18a/0x5af0 [ 136.680437][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.686520][ T8225] ? __list_add_valid+0xb8/0x420 [ 136.691481][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.696694][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.701908][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.707127][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.712967][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.718187][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.724011][ T8225] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 136.730182][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.735394][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.741225][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.746438][ T8225] ? alauda_probe+0x270/0x270 [ 136.751145][ T8225] usb_stor_invoke_transport+0xe3/0x2ab0 [ 136.756798][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.762621][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 136.768702][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.773915][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 136.779735][ T8225] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 136.785992][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.791218][ T8225] ? kmsan_set_origin_checked+0xa2/0x100 [ 136.796861][ T8225] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 136.802943][ T8225] usb_stor_transparent_scsi_command+0x5d/0x70 [ 136.809118][ T8225] ? usb_stor_ufi_command+0x3e0/0x3e0 [ 136.814512][ T8225] usb_stor_control_thread+0x7b7/0xff0 [ 136.820009][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.825268][ T8225] ? __kthread_parkme+0x22b/0x250 [ 136.830336][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 136.835553][ T8225] kthread+0x521/0x560 [ 136.839644][ T8225] ? usb_stor_disconnect+0x3b0/0x3b0 [ 136.844950][ T8225] ? kthread_blkcg+0x110/0x110 [ 136.849742][ T8225] ret_from_fork+0x1f/0x30 [ 136.855625][ T8225] Kernel Offset: disabled [ 136.859958][ T8225] Rebooting in 86400 seconds..