[ 33.667677][ T3335] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 33.737495][ T3335] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 33.808262][ T3335] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.104750][ T3335] bridge_slave_1: left allmulticast mode [ 34.104786][ T3335] bridge_slave_1: left promiscuous mode [ 34.105109][ T3335] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.108093][ T3335] bridge_slave_0: left allmulticast mode [ 34.108118][ T3335] bridge_slave_0: left promiscuous mode [ 34.108193][ T3335] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.250262][ T3335] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 34.275838][ T3335] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 34.295425][ T3335] bond0 (unregistering): Released all slaves [ 34.359014][ T3335] hsr_slave_0: left promiscuous mode [ 34.360354][ T3335] hsr_slave_1: left promiscuous mode [ 34.361826][ T3335] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 34.361862][ T3335] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 34.367731][ T3335] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 34.369005][ T3335] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 34.373659][ T3335] veth1_macvtap: left promiscuous mode [ 34.374971][ T3335] veth0_macvtap: left promiscuous mode [ 34.376031][ T3335] veth1_vlan: left promiscuous mode [ 34.377056][ T3335] veth0_vlan: left promiscuous mode [ 34.461327][ T3335] team0 (unregistering): Port device team_slave_1 removed [ 34.465257][ T3335] team0 (unregistering): Port device team_slave_0 removed [ 34.514213][ T4396] 8021q: adding VLAN 0 to HW filter on device eth0 [ 34.638824][ T4396] 8021q: adding VLAN 0 to HW filter on device eth1 [ 34.749991][ T4396] 8021q: adding VLAN 0 to HW filter on device eth2 [ 34.855075][ T4396] 8021q: adding VLAN 0 to HW filter on device eth3 Warning: Permanently added '10.128.1.130' (ED25519) to the list of known hosts. 1970/01/01 00:00:37 ignoring optional flag "type"="gce" 1970/01/01 00:00:37 parsed 1 programs 1970/01/01 00:00:37 executed programs: 0 [ 37.474658][ T4726] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 37.475130][ T4726] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 37.475311][ T4726] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 37.475631][ T4726] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 37.475823][ T4726] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 37.603476][ T4871] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.603515][ T4871] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.603564][ T4871] bridge_slave_0: entered allmulticast mode [ 37.603964][ T4871] bridge_slave_0: entered promiscuous mode [ 37.604788][ T4871] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.604858][ T4871] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.604899][ T4871] bridge_slave_1: entered allmulticast mode [ 37.605332][ T4871] bridge_slave_1: entered promiscuous mode [ 37.615194][ T4871] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 37.616015][ T4871] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 37.623604][ T4871] team0: Port device team_slave_0 added [ 37.624316][ T4871] team0: Port device team_slave_1 added [ 37.632002][ T4871] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 37.632021][ T4871] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 37.632036][ T4871] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 37.632499][ T4871] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 37.632506][ T4871] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 37.632520][ T4871] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 37.652605][ T4871] hsr_slave_0: entered promiscuous mode [ 37.652890][ T4871] hsr_slave_1: entered promiscuous mode [ 37.967163][ T4871] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 37.969908][ T4871] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 37.971640][ T4871] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 37.973982][ T4871] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 37.975873][ T4871] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 37.978017][ T4871] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 37.979815][ T4871] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 37.982068][ T4871] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 37.990395][ T4871] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.990441][ T4871] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.990524][ T4871] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.990556][ T4871] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.014383][ T4871] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.017990][ T3335] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.019266][ T3335] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.023323][ T4871] 8021q: adding VLAN 0 to HW filter on device team0 [ 38.026679][ T3335] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.026719][ T3335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 38.038252][ T3335] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.038297][ T3335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 38.135376][ T4871] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 38.148275][ T4871] veth0_vlan: entered promiscuous mode [ 38.151368][ T4871] veth1_vlan: entered promiscuous mode [ 38.160495][ T4871] veth0_macvtap: entered promiscuous mode [ 38.163122][ T4871] veth1_macvtap: entered promiscuous mode [ 38.171231][ T4871] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 38.175815][ T4871] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 38.180036][ T1074] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.180658][ T1074] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.180681][ T1074] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.180696][ T1074] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 38.265637][ T4969] nbd0: detected capacity change from 0 to 2 [ 39.047922][ T4724] block nbd0: Receive control failed (result -104) [ 39.515035][ T4724] Bluetooth: hci0: command tx timeout [ 41.594580][ T4724] Bluetooth: hci0: command tx timeout [ 43.675027][ T4724] Bluetooth: hci0: command tx timeout [ 45.754579][ T4724] Bluetooth: hci0: command tx timeout [ 64.475965][ T1595] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.476018][ T1595] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.478395][ T24] cfg80211: failed to load regulatory.db [ 68.316395][ T4427] block nbd0: Possible stuck request 00000000426908be: control (read@0,1024B). Runtime 30 seconds 1970/01/01 00:01:33 executed programs: 1 [ 94.231569][ T4726] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 94.232000][ T4726] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 94.232173][ T4726] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 94.232547][ T4726] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 94.232738][ T4726] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 94.360768][ T5034] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.360852][ T5034] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.360904][ T5034] bridge_slave_0: entered allmulticast mode [ 94.361379][ T5034] bridge_slave_0: entered promiscuous mode [ 94.362250][ T5034] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.362295][ T5034] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.362345][ T5034] bridge_slave_1: entered allmulticast mode [ 94.362765][ T5034] bridge_slave_1: entered promiscuous mode [ 94.372153][ T5034] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 94.373067][ T5034] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 94.380990][ T5034] team0: Port device team_slave_0 added [ 94.381682][ T5034] team0: Port device team_slave_1 added [ 94.388488][ T5034] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 94.388508][ T5034] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 94.388524][ T5034] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 94.389009][ T5034] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 94.389016][ T5034] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 94.389030][ T5034] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 94.407853][ T5034] hsr_slave_0: entered promiscuous mode [ 94.408145][ T5034] hsr_slave_1: entered promiscuous mode [ 94.408333][ T5034] debugfs: 'hsr0' already exists in 'hsr' [ 94.408380][ T5034] Cannot create hsr debugfs directory [ 94.449583][ T5034] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.518415][ T5034] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.568180][ T5034] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.628486][ T5034] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 94.747546][ T5034] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 94.749770][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 94.750237][ T5034] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 94.751692][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 94.751956][ T5034] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 94.755363][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 94.755872][ T5034] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 94.757737][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 94.765822][ T5034] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.765865][ T5034] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.765959][ T5034] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.765992][ T5034] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.782923][ T5034] 8021q: adding VLAN 0 to HW filter on device bond0 [ 94.788386][ T3335] bridge0: port 1(bridge_slave_0) entered disabled state [ 94.790002][ T3335] bridge0: port 2(bridge_slave_1) entered disabled state [ 94.794030][ T5034] 8021q: adding VLAN 0 to HW filter on device team0 [ 94.805237][ T5034] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 94.805269][ T5034] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 94.808973][ T1074] bridge0: port 1(bridge_slave_0) entered blocking state [ 94.809002][ T1074] bridge0: port 1(bridge_slave_0) entered forwarding state [ 94.809365][ T1074] bridge0: port 2(bridge_slave_1) entered blocking state [ 94.809383][ T1074] bridge0: port 2(bridge_slave_1) entered forwarding state [ 94.888924][ T5034] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 94.899950][ T5034] veth0_vlan: entered promiscuous mode [ 94.901731][ T5034] veth1_vlan: entered promiscuous mode [ 94.918812][ T5034] veth0_macvtap: entered promiscuous mode [ 94.920190][ T5034] veth1_macvtap: entered promiscuous mode [ 94.924092][ T5034] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 94.927145][ T5034] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 94.928570][ T3335] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.928700][ T3335] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.929708][ T1074] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 94.929771][ T1074] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.234600][ T4724] Bluetooth: hci1: command tx timeout [ 98.314580][ T4724] Bluetooth: hci1: command tx timeout [ 98.394854][ T4427] block nbd0: Possible stuck request 00000000426908be: control (read@0,1024B). Runtime 60 seconds [ 99.490396][ T4340] udevd[4340]: worker [4791] /devices/virtual/block/nbd0 is taking a long time [ 100.394698][ T4724] Bluetooth: hci1: command tx timeout [ 102.474575][ T4724] Bluetooth: hci1: command tx timeout [ 125.914931][ T1595] ieee802154 phy0 wpan0: encryption failed: -22 [ 125.914976][ T1595] ieee802154 phy1 wpan1: encryption failed: -22 [ 128.475236][ T4427] block nbd0: Possible stuck request 00000000426908be: control (read@0,1024B). Runtime 90 seconds 1970/01/01 00:02:29 executed programs: 2 [ 150.970211][ T4726] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 150.971738][ T4726] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 150.972145][ T4726] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 150.972487][ T4726] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 150.972680][ T4726] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 151.108074][ T5076] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.108155][ T5076] bridge0: port 1(bridge_slave_0) entered disabled state [ 151.108209][ T5076] bridge_slave_0: entered allmulticast mode [ 151.108644][ T5076] bridge_slave_0: entered promiscuous mode [ 151.109494][ T5076] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.109529][ T5076] bridge0: port 2(bridge_slave_1) entered disabled state [ 151.109609][ T5076] bridge_slave_1: entered allmulticast mode [ 151.110012][ T5076] bridge_slave_1: entered promiscuous mode [ 151.120029][ T5076] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 151.121001][ T5076] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 151.129255][ T5076] team0: Port device team_slave_0 added [ 151.129948][ T5076] team0: Port device team_slave_1 added [ 151.136996][ T5076] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 151.137018][ T5076] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 151.137032][ T5076] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 151.137526][ T5076] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 151.137533][ T5076] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 151.137545][ T5076] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 151.152162][ T5076] hsr_slave_0: entered promiscuous mode [ 151.152491][ T5076] hsr_slave_1: entered promiscuous mode [ 151.152683][ T5076] debugfs: 'hsr0' already exists in 'hsr' [ 151.152694][ T5076] Cannot create hsr debugfs directory [ 151.209162][ T5076] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 151.298576][ T5076] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 151.388111][ T5076] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 151.448667][ T5076] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 151.597691][ T5076] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 151.599848][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 151.601298][ T5076] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 151.603419][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 151.603708][ T5076] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 151.605720][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 151.606041][ T5076] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 151.607734][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 151.614830][ T5076] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.614872][ T5076] bridge0: port 2(bridge_slave_1) entered forwarding state [ 151.614950][ T5076] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.614984][ T5076] bridge0: port 1(bridge_slave_0) entered forwarding state [ 151.630559][ T5076] 8021q: adding VLAN 0 to HW filter on device bond0 [ 151.633806][ T40] bridge0: port 1(bridge_slave_0) entered disabled state [ 151.635221][ T40] bridge0: port 2(bridge_slave_1) entered disabled state [ 151.639540][ T5076] 8021q: adding VLAN 0 to HW filter on device team0 [ 151.642483][ T40] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.642520][ T40] bridge0: port 1(bridge_slave_0) entered forwarding state [ 151.645247][ T40] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.645275][ T40] bridge0: port 2(bridge_slave_1) entered forwarding state [ 151.653110][ T5076] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 151.653138][ T5076] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 151.740094][ T5076] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 151.750421][ T5076] veth0_vlan: entered promiscuous mode [ 151.752071][ T5076] veth1_vlan: entered promiscuous mode [ 151.758634][ T5076] veth0_macvtap: entered promiscuous mode [ 151.760473][ T5076] veth1_macvtap: entered promiscuous mode [ 151.764316][ T5076] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 151.765583][ T5076] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 151.767229][ T3335] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 151.767272][ T3335] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 151.767293][ T3335] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 151.767309][ T3335] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 153.034650][ T4724] Bluetooth: hci2: command tx timeout [ 155.114612][ T4724] Bluetooth: hci2: command tx timeout [ 157.204836][ T4724] Bluetooth: hci2: command tx timeout [ 158.556635][ T4427] block nbd0: Possible stuck request 00000000426908be: control (read@0,1024B). Runtime 120 seconds [ 159.274601][ T4724] Bluetooth: hci2: command tx timeout [ 163.844656][ T4726] Bluetooth: hci0: command 0x0406 tx timeout [ 187.355231][ T1595] ieee802154 phy0 wpan0: encryption failed: -22 [ 187.355274][ T1595] ieee802154 phy1 wpan1: encryption failed: -22 [ 188.654613][ T4427] block nbd0: Possible stuck request 00000000426908be: control (read@0,1024B). Runtime 150 seconds [ 192.474668][ T31] INFO: task syz-executor.0:4969 blocked for more than 143 seconds. [ 192.474697][ T31] Not tainted syzkaller #0 [ 192.475154][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 192.475165][ T31] task:syz-executor.0 state:D stack:0 pid:4969 tgid:4968 ppid:4871 task_flags:0x400140 flags:0x00000019 [ 192.475190][ T31] Call trace: [ 192.475198][ T31] __switch_to+0x2b0/0x6e0 (T) [ 192.475222][ T31] __schedule+0x1c04/0x2db8 [ 192.475236][ T31] schedule+0x13c/0x20c [ 192.475249][ T31] schedule_preempt_disabled+0x18/0x2c [ 192.475263][ T31] __mutex_lock+0x4fc/0xed0 [ 192.475277][ T31] mutex_lock_nested+0x24/0x30 [ 192.475291][ T31] bdev_release+0x128/0x328 [ 192.475306][ T31] blkdev_release+0x20/0x34 [ 192.475317][ T31] __fput+0x338/0x74c [ 192.475329][ T31] ____fput+0x20/0x30 [ 192.475340][ T31] task_work_run+0x1cc/0x25c [ 192.475354][ T31] get_signal+0xf30/0x1094 [ 192.475365][ T31] arch_do_signal_or_restart+0x288/0x444c [ 192.475379][ T31] exit_to_user_mode_loop+0x70/0x17c [ 192.475392][ T31] el0_svc+0x18c/0x260 [ 192.475403][ T31] el0t_64_sync_handler+0x48/0x148 [ 192.475414][ T31] el0t_64_sync+0x198/0x19c [ 192.475427][ T31] INFO: task syz-executor.0:4981 blocked for more than 143 seconds. [ 192.475436][ T31] Not tainted syzkaller #0 [ 192.475444][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 192.475450][ T31] task:syz-executor.0 state:D stack:0 pid:4981 tgid:4968 ppid:4871 task_flags:0x400140 flags:0x00800001 [ 192.475468][ T31] Call trace: [ 192.475474][ T31] __switch_to+0x2b0/0x6e0 (T) [ 192.475488][ T31] __schedule+0x1c04/0x2db8 [ 192.475501][ T31] schedule+0x13c/0x20c [ 192.475514][ T31] schedule_preempt_disabled+0x18/0x2c [ 192.475527][ T31] __mutex_lock+0x4fc/0xed0 [ 192.475541][ T31] mutex_lock_nested+0x24/0x30 [ 192.475554][ T31] bdev_open+0xc4/0x880 [ 192.475567][ T31] bdev_file_open_by_dev+0x180/0x1d8 [ 192.475581][ T31] disk_scan_partitions+0x1b4/0x2d4 [ 192.475595][ T31] blkdev_common_ioctl+0x10f8/0x1fe0 [ 192.475608][ T31] blkdev_ioctl+0x4ec/0x904 [ 192.475620][ T31] __arm64_sys_ioctl+0x14c/0x1c4 [ 192.475634][ T31] invoke_syscall+0x98/0x244 [ 192.475648][ T31] el0_svc_common+0xec/0x23c [ 192.475661][ T31] do_el0_svc+0x4c/0x5c [ 192.475675][ T31] el0_svc+0x64/0x260 [ 192.475685][ T31] el0t_64_sync_handler+0x48/0x148 [ 192.475696][ T31] el0t_64_sync+0x198/0x19c [ 192.475717][ T31] [ 192.475717][ T31] Showing all locks held in the system: [ 192.475726][ T31] 1 lock held by khungtaskd/31: [ 192.475735][ T31] #0: ffff800088bf70c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x4c/0x188 [ 192.475792][ T31] 3 locks held by kworker/u8:6/3335: [ 192.475802][ T31] 2 locks held by getty/4489: [ 192.475810][ T31] #0: ffff0000d475b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 192.475852][ T31] #1: ffff8000923ab2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x348/0xf70 [ 192.475896][ T31] 1 lock held by udevd/4791: [ 192.475904][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 192.475953][ T31] 1 lock held by syz-executor.0/4969: [ 192.475961][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x128/0x328 [ 192.476002][ T31] 1 lock held by syz-executor.0/4981: [ 192.476009][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 192.476051][ T31] 1 lock held by syz-executor.0/5067: [ 192.476058][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 192.476099][ T31] 1 lock held by syz-executor.0/5068: [ 192.476107][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 192.476148][ T31] 1 lock held by syz-executor.0/5109: [ 192.476155][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 192.476196][ T31] 1 lock held by syz-executor.0/5110: [ 192.476204][ T31] #0: ffff0000c7dce350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 192.476246][ T31] [ 192.476251][ T31] ============================================= [ 192.476251][ T31] [ 192.476260][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 192.534020][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 192.535339][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 192.536761][ T31] Call trace: [ 192.537213][ T31] show_stack+0x2c/0x3c (C) [ 192.537928][ T31] __dump_stack+0x30/0x40 [ 192.538482][ T31] dump_stack_lvl+0x30/0x12c [ 192.539144][ T31] dump_stack+0x1c/0x28 [ 192.539706][ T31] vpanic+0x594/0xaf8 [ 192.540280][ T31] vpanic+0x0/0xaf8 [ 192.540875][ T31] hung_task_panic+0x0/0x2c [ 192.541478][ T31] kthread+0x304/0x3d4 [ 192.542030][ T31] ret_from_fork+0x10/0x20 [ 192.542673][ T31] SMP: stopping secondary CPUs [ 192.543317][ T31] Kernel Offset: disabled [ 192.543864][ T31] CPU features: 0x0a000000,003c0008,27020501,5427fea7 [ 192.544836][ T31] Memory Limit: none [ 192.792994][ T31] Rebooting in 86400 seconds..