[  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 '10.128.0.224' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [  877.307911][   T27] audit: type=1400 audit(1591958202.611:8): avc:  denied  { execmem } for  pid=6831 comm="syz-executor441" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[  877.586382][ T2630] usb 6-1: new high-speed USB device number 2 using dummy_hcd
[  877.597242][ T2620] usb 4-1: new high-speed USB device number 2 using dummy_hcd
[  877.637050][ T2511] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[  877.646442][ T6841] usb 2-1: new high-speed USB device number 2 using dummy_hcd
[  877.656569][ T6849] usb 5-1: new high-speed USB device number 2 using dummy_hcd
[  877.664131][ T6856] usb 3-1: new high-speed USB device number 2 using dummy_hcd
[  877.836315][ T2620] usb 4-1: Using ep0 maxpacket: 8
[  877.866339][ T2630] usb 6-1: Using ep0 maxpacket: 8
[  877.877334][ T2511] usb 1-1: Using ep0 maxpacket: 8
[  877.896329][ T6841] usb 2-1: Using ep0 maxpacket: 8
[  877.906392][ T6856] usb 3-1: Using ep0 maxpacket: 8
[  877.911677][ T6849] usb 5-1: Using ep0 maxpacket: 8
[  877.956827][ T2620] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  877.967344][ T2620] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  877.978606][ T2620] usb 4-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  877.996532][ T2630] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  878.006643][ T2511] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  878.006989][ T2630] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  878.017759][ T2511] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  878.028899][ T2630] usb 6-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  878.037364][ T2511] usb 1-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  878.062932][ T6849] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  878.066457][ T6841] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  878.072952][ T6856] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  878.083092][ T6841] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  878.093341][ T6849] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  878.107126][ T6841] usb 2-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  878.113419][ T6856] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  878.136068][ T6849] usb 5-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  878.149412][ T6856] usb 3-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  878.166549][ T2620] usb 4-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  878.166566][ T2620] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  878.166578][ T2620] usb 4-1: Product: syz
[  878.166590][ T2620] usb 4-1: Manufacturer: syz
[  878.166601][ T2620] usb 4-1: SerialNumber: syz
[  878.188011][ T6838] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.188148][ T6838] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.208468][ T2620] usb 4-1: bad CDC descriptors
[  878.236709][ T2630] usb 6-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  878.246060][ T2630] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  878.246396][ T2511] usb 1-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  878.255941][ T2630] usb 6-1: Product: syz
[  878.267042][ T2511] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  878.269423][ T2630] usb 6-1: Manufacturer: syz
[  878.280158][ T2620] smsc95xx v1.0.6
[  878.282511][ T2630] usb 6-1: SerialNumber: syz
[  878.286958][ T2511] usb 1-1: Product: syz
[  878.294954][ T2511] usb 1-1: Manufacturer: syz
[  878.300358][ T2511] usb 1-1: SerialNumber: syz
[  878.310735][ T6839] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.316486][ T6849] usb 5-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  878.317875][ T6841] usb 2-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  878.326908][ T6856] usb 3-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  878.340511][ T6839] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.345173][ T6840] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.359149][ T6841] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  878.365717][ T6849] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  878.372523][ T2630] usb 6-1: bad CDC descriptors
[  878.379394][ T6840] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.384225][ T6841] usb 2-1: Product: syz
[  878.390381][ T6856] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  878.401404][ T6841] usb 2-1: Manufacturer: syz
[  878.402726][ T6849] usb 5-1: Product: syz
[  878.409214][ T6841] usb 2-1: SerialNumber: syz
[  878.411876][ T6838] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.425932][ T6849] usb 5-1: Manufacturer: syz
[  878.426761][ T2630] smsc95xx v1.0.6
[  878.430954][ T6856] usb 3-1: Product: syz
[  878.436495][ T6845] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.439966][ T2511] usb 1-1: bad CDC descriptors
[  878.452683][ T6845] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.456330][ T6838] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.466344][ T6849] usb 5-1: SerialNumber: syz
[  878.481160][ T6841] usb 2-1: bad CDC descriptors
[  878.481554][ T6856] usb 3-1: Manufacturer: syz
[  878.491080][ T6856] usb 3-1: SerialNumber: syz
[  878.496746][ T6843] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.503867][ T6843] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.516676][ T6841] smsc95xx v1.0.6
[  878.517227][ T6849] usb 5-1: bad CDC descriptors
[  878.525706][ T2511] smsc95xx v1.0.6
[  878.534115][ T6846] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.541766][ T6846] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.556889][ T6849] smsc95xx v1.0.6
[  878.567200][ T6856] usb 3-1: bad CDC descriptors
[  878.578958][ T6839] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.585853][ T6839] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.596690][ T6856] smsc95xx v1.0.6
[  878.651471][ T6840] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.659271][ T6840] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.691377][ T6845] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.698632][ T6845] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.716749][ T6843] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.723735][ T6843] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.732002][ T2620] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  878.743842][ T2620] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  878.777521][ T6846] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.784505][ T6846] raw-gadget gadget: fail, usb_ep_enable returned -22
[  878.826401][ T2630] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  878.837374][ T2630] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  878.896411][ T2511] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  878.907181][ T2511] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  878.936363][ T6841] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  878.957070][ T6841] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  878.976411][ T6849] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  878.987320][ T6849] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  879.004087][ T2620] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  879.016306][ T6856] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  879.035099][ T6856] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  879.096320][ T2630] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  879.166407][ T2511] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  879.226459][ T6841] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  879.256328][ T6849] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  879.267154][ T2620] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  879.278129][ T2620] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  879.296302][ T2620] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  879.316428][ T6856] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  879.356354][ T2630] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  879.367943][ T2630] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  879.384441][ T2630] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  879.436349][ T2511] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  879.447069][ T2511] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  879.456848][ T2511] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  879.496326][ T6841] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  879.507341][ T6841] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  879.524125][ T6841] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  879.526371][ T6849] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  879.544805][ T6849] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  879.554104][ T6849] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  879.586342][ T6856] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  879.599271][ T2620] smsc95xx 4-1:1.0 eth1: register 'smsc95xx' at usb-dummy_hcd.3-1, smsc95xx USB 2.0 Ethernet, 6e:d7:9b:70:45:b4
[  879.611173][ T6856] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  879.623582][ T6856] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  879.857596][ T2630] smsc95xx 6-1:1.0 eth2: register 'smsc95xx' at usb-dummy_hcd.5-1, smsc95xx USB 2.0 Ethernet, a6:b1:52:81:ee:8e
[  880.117665][ T2511] smsc95xx 1-1:1.0 eth3: register 'smsc95xx' at usb-dummy_hcd.0-1, smsc95xx USB 2.0 Ethernet, 8e:e9:34:77:97:18
[  880.377674][ T6841] smsc95xx 2-1:1.0 eth4: register 'smsc95xx' at usb-dummy_hcd.1-1, smsc95xx USB 2.0 Ethernet, da:8a:f7:fb:d3:77
[  880.637569][ T6849] smsc95xx 5-1:1.0 eth5: register 'smsc95xx' at usb-dummy_hcd.4-1, smsc95xx USB 2.0 Ethernet, c2:45:02:18:be:57
[  880.907655][ T6856] smsc95xx 3-1:1.0 eth6: register 'smsc95xx' at usb-dummy_hcd.2-1, smsc95xx USB 2.0 Ethernet, de:00:1a:94:8e:1f
executing program
[  881.370351][ T6841] usb 4-1: USB disconnect, device number 2
[  881.386190][ T6856] smsc95xx 4-1:1.0 eth1: Failed to read reg index 0x00000114: -71
[  881.404536][ T6841] smsc95xx 4-1:1.0 eth1: unregister 'smsc95xx' usb-dummy_hcd.3-1, smsc95xx USB 2.0 Ethernet
[  881.411270][ T6856] smsc95xx 4-1:1.0 eth1: Error reading MII_ACCESS
executing program
[  881.452374][ T6856] smsc95xx 4-1:1.0 eth1: MII is busy in smsc95xx_mdio_read
[  881.500833][ T6856] smsc95xx 4-1:1.0 eth1 (unregistering): Failed to read MII_BMSR
[  881.506151][ T2630] smsc95xx 6-1:1.0 eth2: Failed to read reg index 0x00000114: -71
[  881.534567][ T2630] smsc95xx 6-1:1.0 eth2: Error reading MII_ACCESS
[  881.541785][ T2630] smsc95xx 6-1:1.0 eth2: MII is busy in smsc95xx_mdio_read
[  881.549234][ T2630] smsc95xx 6-1:1.0 eth2: Failed to read MII_BMSR
[  881.558339][ T6856] usb 6-1: USB disconnect, device number 2
[  881.591092][ T6856] smsc95xx 6-1:1.0 eth2: unregister 'smsc95xx' usb-dummy_hcd.5-1, smsc95xx USB 2.0 Ethernet
[  881.617296][ T6860] usb 2-1: USB disconnect, device number 2
[  881.626273][ T2630] smsc95xx 2-1:1.0 eth4: Failed to read reg index 0x00000114: -71
[  881.656274][ T2620] smsc95xx 1-1:1.0 eth3: Failed to read reg index 0x00000114: -71
executing program
executing program
executing program
[  881.664245][ T6849] smsc95xx 5-1:1.0 eth5: Failed to read reg index 0x00000114: -71
[  881.666188][ T6860] smsc95xx 2-1:1.0 eth4: unregister 'smsc95xx' usb-dummy_hcd.1-1, smsc95xx USB 2.0 Ethernet
[  881.683743][ T2620] smsc95xx 1-1:1.0 eth3: Error reading MII_ACCESS
[  881.694175][ T6849] smsc95xx 5-1:1.0 eth5: Error reading MII_ACCESS
[  881.699993][ T2630] smsc95xx 2-1:1.0 eth4: Error reading MII_ACCESS
[  881.737608][ T2630] smsc95xx 2-1:1.0 eth4: MII is busy in smsc95xx_mdio_read
[  881.739814][ T2620] smsc95xx 1-1:1.0 eth3: MII is busy in smsc95xx_mdio_read
[  881.758104][ T6849] smsc95xx 5-1:1.0 eth5: MII is busy in smsc95xx_mdio_read
[  881.776466][ T2630] smsc95xx 2-1:1.0 eth4: Failed to read MII_BMSR
[  881.783511][ T6849] smsc95xx 5-1:1.0 eth5: Failed to read MII_BMSR
[  881.800554][ T2630] usb 5-1: USB disconnect, device number 2
[  881.814469][ T2630] smsc95xx 5-1:1.0 eth5: unregister 'smsc95xx' usb-dummy_hcd.4-1, smsc95xx USB 2.0 Ethernet
[  881.823227][ T2620] smsc95xx 1-1:1.0 eth3: Failed to read MII_BMSR
[  881.829753][ T6949] usb 1-1: USB disconnect, device number 2
[  881.839526][ T6949] smsc95xx 1-1:1.0 eth3: unregister 'smsc95xx' usb-dummy_hcd.0-1, smsc95xx USB 2.0 Ethernet
executing program
[  881.906448][ T2620] smsc95xx 3-1:1.0 eth6: Failed to read reg index 0x00000114: -71
[  881.912364][    T5] usb 3-1: USB disconnect, device number 2
[  881.921745][ T2620] smsc95xx 3-1:1.0 eth6: Error reading MII_ACCESS
[  881.924611][    T5] smsc95xx 3-1:1.0 eth6: unregister 'smsc95xx' usb-dummy_hcd.2-1, smsc95xx USB 2.0 Ethernet
[  881.938463][ T2620] smsc95xx 3-1:1.0 eth6: MII is busy in smsc95xx_mdio_read
[  881.950875][ T2620] smsc95xx 3-1:1.0 eth6: Failed to read MII_BMSR
[  882.056193][ T6841] usb 4-1: new high-speed USB device number 3 using dummy_hcd
[  882.116099][ T6856] usb 6-1: new high-speed USB device number 3 using dummy_hcd
[  882.336055][ T6841] usb 4-1: Using ep0 maxpacket: 8
[  882.356131][ T6856] usb 6-1: Using ep0 maxpacket: 8
[  882.396258][ T6860] usb 2-1: new high-speed USB device number 3 using dummy_hcd
[  882.456284][ T6841] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  882.466375][ T6841] usb 4-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  882.476335][ T6856] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  882.476961][ T6841] usb 4-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  882.489154][ T6856] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  882.510376][ T6856] usb 6-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  882.516037][ T2630] usb 5-1: new high-speed USB device number 3 using dummy_hcd
[  882.531206][ T6949] usb 1-1: new high-speed USB device number 3 using dummy_hcd
[  882.539139][    T5] usb 3-1: new high-speed USB device number 3 using dummy_hcd
[  882.676100][ T6860] usb 2-1: Using ep0 maxpacket: 8
[  882.676304][ T6856] usb 6-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  882.681556][ T6841] usb 4-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  882.690827][ T6856] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  882.702547][ T6841] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  882.708098][ T6856] usb 6-1: Product: syz
[  882.717764][ T6841] usb 4-1: Product: syz
[  882.720918][ T6856] usb 6-1: Manufacturer: syz
[  882.724847][ T6841] usb 4-1: Manufacturer: syz
[  882.731397][ T6856] usb 6-1: SerialNumber: syz
[  882.734472][ T6841] usb 4-1: SerialNumber: syz
[  882.756384][ T6942] raw-gadget gadget: fail, usb_ep_enable returned -22
[  882.765666][ T6942] raw-gadget gadget: fail, usb_ep_enable returned -22
[  882.772907][ T6936] raw-gadget gadget: fail, usb_ep_enable returned -22
[  882.780970][ T6936] raw-gadget gadget: fail, usb_ep_enable returned -22
[  882.797194][ T6856] usb 6-1: bad CDC descriptors
[  882.797199][ T6841] usb 4-1: bad CDC descriptors
[  882.826463][ T6860] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  882.836469][ T2630] usb 5-1: Using ep0 maxpacket: 8
[  882.841596][ T6949] usb 1-1: Using ep0 maxpacket: 8
[  882.846741][    T5] usb 3-1: Using ep0 maxpacket: 8
[  882.852339][ T6841] smsc95xx v1.0.6
[  882.856313][ T6860] usb 2-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  882.866246][ T6860] usb 2-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  882.868519][ T6856] smsc95xx v1.0.6
[  882.976401][    T5] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  882.986418][ T2630] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  882.997828][ T6949] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  883.008178][ T6936] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.008210][ T6942] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.014999][ T6936] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.025285][ T6942] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.029215][    T5] usb 3-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  883.046069][ T2630] usb 5-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  883.055868][ T2630] usb 5-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  883.068941][ T6860] usb 2-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  883.078072][ T6949] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  883.087984][ T6860] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  883.096067][ T6949] usb 1-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  883.109031][ T6860] usb 2-1: Product: syz
[  883.113192][ T6860] usb 2-1: Manufacturer: syz
[  883.117954][    T5] usb 3-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  883.130976][ T6860] usb 2-1: SerialNumber: syz
[  883.167071][ T6950] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.173987][ T6950] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.187272][ T6860] usb 2-1: bad CDC descriptors
[  883.236290][ T6860] smsc95xx v1.0.6
[  883.246920][ T6841] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  883.257700][ T6841] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  883.276167][ T6856] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  883.287088][ T6856] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  883.296432][ T2630] usb 5-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  883.305477][ T2630] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  883.313799][    T5] usb 3-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  883.323199][ T6949] usb 1-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  883.332359][ T2630] usb 5-1: Product: syz
[  883.336618][    T5] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  883.344590][    T5] usb 3-1: Product: syz
[  883.348970][ T6949] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  883.357258][ T2630] usb 5-1: Manufacturer: syz
[  883.361849][ T2630] usb 5-1: SerialNumber: syz
[  883.366538][ T6949] usb 1-1: Product: syz
[  883.370700][ T6949] usb 1-1: Manufacturer: syz
[  883.375270][ T6949] usb 1-1: SerialNumber: syz
[  883.380687][    T5] usb 3-1: Manufacturer: syz
[  883.385305][    T5] usb 3-1: SerialNumber: syz
[  883.386987][ T6950] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.398399][ T6950] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.406268][ T6955] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.415801][ T6955] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.426270][ T6958] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.433405][ T6972] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.441816][ T6958] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.444521][ T6972] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.456714][ T2630] usb 5-1: bad CDC descriptors
[  883.462442][ T6949] usb 1-1: bad CDC descriptors
[  883.468944][    T5] usb 3-1: bad CDC descriptors
[  883.486377][ T2630] smsc95xx v1.0.6
[  883.490574][ T6949] smsc95xx v1.0.6
[  883.495050][    T5] smsc95xx v1.0.6
[  883.536246][ T6841] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  883.546156][ T6856] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  883.656203][ T6958] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.656209][ T6955] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.656271][ T6955] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.663199][ T6860] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  883.670216][ T6958] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.684386][ T6860] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  883.687769][ T6972] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.711399][ T6972] raw-gadget gadget: fail, usb_ep_enable returned -22
[  883.796109][ T6841] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  883.806069][ T6856] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  883.806891][ T6841] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  883.824346][ T6856] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  883.827660][ T6841] smsc95xx 4-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  883.850367][ T6856] smsc95xx 6-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  883.916256][ T2630] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  883.927240][ T2630] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  883.943748][    T5] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  883.954541][ T6949] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32
[  883.965441][ T6860] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  883.976269][ T6949] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  883.985316][    T5] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD
[  884.107447][ T6841] smsc95xx 4-1:1.0 eth1: register 'smsc95xx' at usb-dummy_hcd.3-1, smsc95xx USB 2.0 Ethernet, 52:a5:dc:1c:80:9a
[  884.226082][ T6949] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  884.236882][ T2630] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  884.247573][ T6860] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  884.258252][    T5] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000014: -32
[  884.268895][ T6860] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  884.278583][ T6860] smsc95xx 2-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  884.367541][ T6856] smsc95xx 6-1:1.0 eth2: register 'smsc95xx' at usb-dummy_hcd.5-1, smsc95xx USB 2.0 Ethernet, f6:4a:90:3e:5a:c2
[  884.537008][ T6949] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  884.549202][ T2630] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  884.559957][    T5] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000114: -32
[  884.570952][ T2630] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  884.580309][    T5] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  884.589594][ T6949] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Error reading MII_ACCESS
[  884.598936][    T5] smsc95xx 3-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  884.608995][ T2630] smsc95xx 5-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  884.619311][ T6949] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): MII is busy in smsc95xx_mdio_read
[  884.647426][ T6860] smsc95xx 2-1:1.0 eth3: register 'smsc95xx' at usb-dummy_hcd.1-1, smsc95xx USB 2.0 Ethernet, 2e:c3:28:08:53:b6
[  884.927674][    T5] smsc95xx 3-1:1.0 eth4: register 'smsc95xx' at usb-dummy_hcd.2-1, smsc95xx USB 2.0 Ethernet, 9a:1d:b6:36:89:ee
[  885.197452][ T2630] smsc95xx 5-1:1.0 eth5: register 'smsc95xx' at usb-dummy_hcd.4-1, smsc95xx USB 2.0 Ethernet, ce:f6:a3:f0:1a:d2
[  885.467446][ T6949] smsc95xx 1-1:1.0 eth6: register 'smsc95xx' at usb-dummy_hcd.0-1, smsc95xx USB 2.0 Ethernet, e2:d9:8d:11:29:eb
executing program
[  885.928247][ T2620] usb 6-1: USB disconnect, device number 3
[  885.936501][ T2620] smsc95xx 6-1:1.0 eth2: unregister 'smsc95xx' usb-dummy_hcd.5-1, smsc95xx USB 2.0 Ethernet
[  885.946071][ T2630] usb 4-1: USB disconnect, device number 3
[  885.946941][ T6856] smsc95xx 6-1:1.0 eth2: Failed to read reg index 0x00000114: -71
[  885.959220][ T2630] smsc95xx 4-1:1.0 eth1: unregister 'smsc95xx' usb-dummy_hcd.3-1, smsc95xx USB 2.0 Ethernet
[  885.970705][ T6856] smsc95xx 6-1:1.0 eth2: Error reading MII_ACCESS
executing program
[  885.970787][ T6949] smsc95xx 4-1:1.0 eth1: Failed to read reg index 0x00000114: -71
[  885.984900][ T6856] smsc95xx 6-1:1.0 eth2: MII is busy in smsc95xx_mdio_read
[  885.987602][ T6949] smsc95xx 4-1:1.0 eth1: Error reading MII_ACCESS
[  885.995199][ T6856] smsc95xx 6-1:1.0 eth2: Failed to read MII_BMSR
[  886.035034][ T6949] smsc95xx 4-1:1.0 eth1: MII is busy in smsc95xx_mdio_read
[  886.043458][ T6949] smsc95xx 4-1:1.0 eth1: Failed to read MII_BMSR
executing program
[  886.327841][    T5] usb 2-1: USB disconnect, device number 3
[  886.334581][    T5] smsc95xx 2-1:1.0 eth3: unregister 'smsc95xx' usb-dummy_hcd.1-1, smsc95xx USB 2.0 Ethernet
[  886.350947][ T6949] smsc95xx 2-1:1.0 eth3: Failed to read reg index 0x00000114: -71
[  886.359385][ T6949] smsc95xx 2-1:1.0 eth3: Error reading MII_ACCESS
[  886.368137][ T6949] smsc95xx 2-1:1.0 eth3: MII is busy in smsc95xx_mdio_read
[  886.375390][ T6949] smsc95xx 2-1:1.0 eth3: Failed to read MII_BMSR
[  886.455842][ T2620] usb 6-1: new high-speed USB device number 4 using dummy_hcd
[  886.505827][ T2630] usb 4-1: new high-speed USB device number 4 using dummy_hcd
executing program
[  886.644680][ T6856] usb 5-1: USB disconnect, device number 3
[  886.651685][ T6856] smsc95xx 5-1:1.0 eth5: unregister 'smsc95xx' usb-dummy_hcd.4-1, smsc95xx USB 2.0 Ethernet
[  886.680516][ T6849] usb 1-1: USB disconnect, device number 3
executing program
[  886.688120][ T6849] smsc95xx 1-1:1.0 eth6: unregister 'smsc95xx' usb-dummy_hcd.0-1, smsc95xx USB 2.0 Ethernet
[  886.705802][ T2620] usb 6-1: Using ep0 maxpacket: 8
[  886.705973][ T6949] smsc95xx 1-1:1.0 eth6: Failed to read reg index 0x00000114: -19
[  886.743170][ T6949] smsc95xx 1-1:1.0 eth6 (unregistering): Error reading MII_ACCESS
[  886.755790][ T2630] usb 4-1: Using ep0 maxpacket: 8
[  886.778727][ T6949] smsc95xx 1-1:1.0 eth6 (unregistered): MII is busy in smsc95xx_mdio_read
[  886.799926][ T6949] ==================================================================
[  886.808337][ T6949] BUG: KASAN: use-after-free in __mutex_unlock_slowpath+0x8e/0x660
[  886.816228][ T6949] Read of size 8 at addr ffff888094310c38 by task kworker/0:4/6949
[  886.826630][ T6949] 
[  886.828968][ T6949] CPU: 0 PID: 6949 Comm: kworker/0:4 Not tainted 5.7.0-syzkaller #0
[  886.829688][ T2620] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247
[  886.836927][ T6949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  886.837082][ T6949] Workqueue: events check_carrier
[  886.862105][ T6949] Call Trace:
[  886.865465][ T6949]  dump_stack+0x188/0x20d
[  886.869814][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  886.875350][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  886.880963][ T6949]  print_address_description.constprop.0.cold+0xd3/0x413
[  886.887982][ T6949]  ? __smsc95xx_mdio_read+0x1bc/0x210
[  886.893398][ T6949]  ? vprintk_func+0x97/0x1a6
[  886.897972][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  886.903494][ T6949]  kasan_report.cold+0x1f/0x37
[  886.908242][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  886.913786][ T6949]  check_memory_region+0x141/0x190
[  886.918988][ T6949]  __mutex_unlock_slowpath+0x8e/0x660
[  886.924344][ T6949]  ? wait_for_completion+0x270/0x270
[  886.929635][ T6949]  __smsc95xx_mdio_read+0x1bc/0x210
[  886.935335][ T6949]  ? smsc95xx_ethtool_getregs+0xa0/0xa0
[  886.940919][ T6949]  ? rcu_read_lock_sched_held+0x9c/0xd0
[  886.946448][ T6949]  check_carrier+0xf3/0x1d0
[  886.950995][ T6949]  process_one_work+0x965/0x16a0
[  886.955939][ T6949]  ? lock_release+0x800/0x800
[  886.960596][ T6949]  ? pwq_dec_nr_in_flight+0x310/0x310
[  886.965968][ T6949]  ? rwlock_bug.part.0+0x90/0x90
[  886.970901][ T6949]  worker_thread+0x96/0xe20
[  886.975391][ T6949]  ? process_one_work+0x16a0/0x16a0
[  886.980625][ T6949]  kthread+0x388/0x470
[  886.984694][ T6949]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[  886.991011][ T6949]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[  886.996760][ T6949]  ret_from_fork+0x24/0x30
[  887.001164][ T6949] 
[  887.003521][ T6949] Allocated by task 6949:
[  887.007840][ T6949]  save_stack+0x1b/0x40
[  887.011996][ T6949]  __kasan_kmalloc.constprop.0+0xbf/0xd0
[  887.017709][ T6949]  kvmalloc_node+0xb4/0xf0
[  887.022153][ T6949]  alloc_netdev_mqs+0x97/0xdc0
[  887.026897][ T6949]  usbnet_probe+0x159/0x2600
[  887.031535][ T6949]  usb_probe_interface+0x305/0x7a0
[  887.036712][ T6949]  really_probe+0x281/0x6d0
[  887.041196][ T6949]  driver_probe_device+0x104/0x210
[  887.046284][ T6949]  __device_attach_driver+0x1c2/0x220
[  887.051631][ T6949]  bus_for_each_drv+0x162/0x1e0
[  887.056467][ T6949]  __device_attach+0x21a/0x360
[  887.061208][ T6949]  bus_probe_device+0x1e4/0x290
[  887.066033][ T6949]  device_add+0x132d/0x1c10
[  887.070517][ T6949]  usb_set_configuration+0xec5/0x1740
[  887.075909][ T6949]  usb_generic_driver_probe+0x9d/0xe0
[  887.081268][ T6949]  usb_probe_device+0xc6/0x1f0
[  887.086016][ T6949]  really_probe+0x281/0x6d0
[  887.090521][ T6949]  driver_probe_device+0x104/0x210
[  887.095613][ T6949]  __device_attach_driver+0x1c2/0x220
[  887.100969][ T6949]  bus_for_each_drv+0x162/0x1e0
[  887.105809][ T6949]  __device_attach+0x21a/0x360
[  887.110558][ T6949]  bus_probe_device+0x1e4/0x290
[  887.115401][ T6949]  device_add+0x132d/0x1c10
[  887.119894][ T6949]  usb_new_device.cold+0x753/0x103d
[  887.125067][ T6949]  hub_event+0x1eca/0x38f0
[  887.129577][ T6949]  process_one_work+0x965/0x16a0
[  887.134527][ T6949]  worker_thread+0x96/0xe20
[  887.139016][ T6949]  kthread+0x388/0x470
[  887.143068][ T6949]  ret_from_fork+0x24/0x30
[  887.147461][ T6949] 
[  887.149769][ T6949] Freed by task 6849:
[  887.153731][ T6949]  save_stack+0x1b/0x40
[  887.157866][ T6949]  __kasan_slab_free+0xf7/0x140
[  887.162879][ T6949]  kfree+0x109/0x2b0
[  887.166838][ T6949]  kvfree+0x42/0x50
[  887.170695][ T6949]  device_release+0x71/0x200
[  887.175306][ T6949]  kobject_put+0x1e7/0x2e0
[  887.179701][ T6949]  put_device+0x1b/0x30
[  887.183836][ T6949]  free_netdev+0x380/0x4a0
[  887.188233][ T6949]  usbnet_disconnect+0x1fb/0x270
[  887.193584][ T6949]  usb_unbind_interface+0x1bd/0x8a0
[  887.198768][ T6949]  device_release_driver_internal+0x432/0x500
[  887.204809][ T6949]  bus_remove_device+0x2dc/0x4a0
[  887.209720][ T6949]  device_del+0x481/0xd30
[  887.214025][ T6949]  usb_disable_device+0x211/0x690
[  887.219023][ T6949]  usb_disconnect+0x284/0x8d0
[  887.223674][ T6949]  hub_event+0x17ca/0x38f0
[  887.228069][ T6949]  process_one_work+0x965/0x16a0
[  887.232985][ T6949]  worker_thread+0x96/0xe20
[  887.237463][ T6949]  kthread+0x388/0x470
[  887.241509][ T6949]  ret_from_fork+0x24/0x30
[  887.245904][ T6949] 
[  887.248211][ T6949] The buggy address belongs to the object at ffff888094310000
[  887.248211][ T6949]  which belongs to the cache kmalloc-8k of size 8192
[  887.262325][ T6949] The buggy address is located 3128 bytes inside of
[  887.262325][ T6949]  8192-byte region [ffff888094310000, ffff888094312000)
[  887.275750][ T6949] The buggy address belongs to the page:
[  887.281368][ T6949] page:ffffea000250c400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea000250c400 order:2 compound_mapcount:0 compound_pincount:0
[  887.296526][ T6949] flags: 0xfffe0000010200(slab|head)
[  887.301803][ T6949] raw: 00fffe0000010200 ffffea0002257808 ffffea0002548608 ffff8880aa0021c0
[  887.312972][ T6949] raw: 0000000000000000 ffff888094310000 0000000100000001 0000000000000000
[  887.321530][ T6949] page dumped because: kasan: bad access detected
[  887.327912][ T6949] 
[  887.330215][ T6949] Memory state around the buggy address:
[  887.335913][ T6949]  ffff888094310b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  887.343960][ T6949]  ffff888094310b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  887.352005][ T6949] >ffff888094310c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  887.360039][ T6949]                                         ^
[  887.365918][ T6949]  ffff888094310c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  887.374493][ T6949]  ffff888094310d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[  887.382541][ T6949] ==================================================================
[  887.390574][ T6949] Disabling lock debugging due to kernel taint
executing program
[  887.397029][ T2620] usb 6-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 564
[  887.406929][    T5] usb 2-1: new high-speed USB device number 4 using dummy_hcd
[  887.407709][ T2620] usb 6-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3
[  887.450055][ T2511] usb 3-1: USB disconnect, device number 3
[  887.456406][ T6949] Kernel panic - not syncing: panic_on_warn set ...
[  887.456999][ T2511] smsc95xx 3-1:1.0 eth4: unregister 'smsc95xx' usb-dummy_hcd.2-1, smsc95xx USB 2.0 Ethernet
[  887.462993][ T6949] CPU: 0 PID: 6949 Comm: kworker/0:4 Tainted: G    B             5.7.0-syzkaller #0
[  887.462999][ T6949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  887.463018][ T6949] Workqueue: events check_carrier
[  887.497410][ T6949] Call Trace:
[  887.500726][ T6949]  dump_stack+0x188/0x20d
[  887.505059][ T6949]  ? __mutex_unlock_slowpath+0x10/0x660
[  887.510669][ T6949]  panic+0x2e3/0x75c
[  887.514543][ T6949]  ? add_taint.cold+0x16/0x16
[  887.519223][ T6949]  ? preempt_schedule_common+0x5e/0xc0
[  887.524686][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  887.530229][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  887.535791][ T6949]  ? preempt_schedule_thunk+0x16/0x18
[  887.541190][ T6949]  ? trace_hardirqs_on+0x55/0x230
[  887.546197][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  887.551720][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  887.557249][ T6949]  end_report+0x4d/0x53
[  887.562260][ T6949]  kasan_report.cold+0xd/0x37
[  887.566912][ T6949]  ? __mutex_unlock_slowpath+0x8e/0x660
[  887.572450][ T6949]  check_memory_region+0x141/0x190
[  887.577539][ T6949]  __mutex_unlock_slowpath+0x8e/0x660
[  887.582887][ T6949]  ? wait_for_completion+0x270/0x270
[  887.588162][ T6949]  __smsc95xx_mdio_read+0x1bc/0x210
[  887.593348][ T6949]  ? smsc95xx_ethtool_getregs+0xa0/0xa0
[  887.598885][ T6949]  ? rcu_read_lock_sched_held+0x9c/0xd0
[  887.604415][ T6949]  check_carrier+0xf3/0x1d0
[  887.605789][ T2620] usb 6-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40
[  887.608898][ T6949]  process_one_work+0x965/0x16a0
[  887.608916][ T6949]  ? lock_release+0x800/0x800
[  887.618915][ T2620] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  887.623681][ T6949]  ? pwq_dec_nr_in_flight+0x310/0x310
[  887.623697][ T6949]  ? rwlock_bug.part.0+0x90/0x90
[  887.634675][ T2620] usb 6-1: Product: syz
[  887.636299][ T6949]  worker_thread+0x96/0xe20
[  887.636316][ T6949]  ? process_one_work+0x16a0/0x16a0
[  887.636328][ T6949]  kthread+0x388/0x470
[  887.636339][ T6949]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[  887.636355][ T6949]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[  887.644462][ T2620] usb 6-1: Manufacturer: syz
[  887.646626][ T6949]  ret_from_fork+0x24/0x30
[  887.648205][ T6949] Kernel Offset: disabled
[  887.690605][ T6949] Rebooting in 86400 seconds..