[ 27.662499][ T1187] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 27.722249][ T1187] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 27.774368][ T1187] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 28.119596][ T1187] bridge_slave_1: left allmulticast mode [ 28.119630][ T1187] bridge_slave_1: left promiscuous mode [ 28.119929][ T1187] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.122841][ T1187] bridge_slave_0: left allmulticast mode [ 28.122864][ T1187] bridge_slave_0: left promiscuous mode [ 28.122938][ T1187] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.259927][ T1187] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 28.310698][ T1187] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 28.360167][ T1187] bond0 (unregistering): Released all slaves [ 28.408261][ T1187] hsr_slave_0: left promiscuous mode [ 28.409826][ T1187] hsr_slave_1: left promiscuous mode [ 28.410087][ T1187] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 28.410117][ T1187] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 28.413611][ T1187] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 28.415080][ T1187] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 28.419912][ T1187] veth1_macvtap: left promiscuous mode [ 28.420873][ T1187] veth0_macvtap: left promiscuous mode [ 28.421870][ T1187] veth1_vlan: left promiscuous mode [ 28.422715][ T1187] veth0_vlan: left promiscuous mode [ 28.516516][ T1187] team0 (unregistering): Port device team_slave_1 removed [ 28.526881][ T1187] team0 (unregistering): Port device team_slave_0 removed [ 28.567730][ T4393] 8021q: adding VLAN 0 to HW filter on device eth1 [ 28.697711][ T4393] 8021q: adding VLAN 0 to HW filter on device eth0 [ 28.804821][ T4393] 8021q: adding VLAN 0 to HW filter on device eth2 [ 28.913053][ T4393] 8021q: adding VLAN 0 to HW filter on device eth3 Warning: Permanently added '10.128.0.126' (ED25519) to the list of known hosts. 1970/01/01 00:00:31 ignoring optional flag "type"="gce" 1970/01/01 00:00:31 parsed 1 programs 1970/01/01 00:00:31 executed programs: 0 [ 32.641819][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 32.642240][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 32.642492][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 32.642810][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 32.643000][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 32.774363][ T4867] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.774412][ T4867] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.774461][ T4867] bridge_slave_0: entered allmulticast mode [ 32.774876][ T4867] bridge_slave_0: entered promiscuous mode [ 32.775508][ T4867] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.775528][ T4867] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.775609][ T4867] bridge_slave_1: entered allmulticast mode [ 32.776045][ T4867] bridge_slave_1: entered promiscuous mode [ 32.784991][ T4867] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 32.785824][ T4867] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 32.795341][ T4867] team0: Port device team_slave_0 added [ 32.796026][ T4867] team0: Port device team_slave_1 added [ 32.803430][ T4867] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 32.803457][ T4867] 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. [ 32.803484][ T4867] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 32.804121][ T4867] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 32.804130][ T4867] 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. [ 32.804140][ T4867] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 32.817682][ T4867] hsr_slave_0: entered promiscuous mode [ 32.817986][ T4867] hsr_slave_1: entered promiscuous mode [ 33.153245][ T4867] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 33.155375][ T4867] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 33.157087][ T4867] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 33.159084][ T4867] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 33.160881][ T4867] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 33.163154][ T4867] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 33.164598][ T4867] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 33.166794][ T4867] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 33.181674][ T4867] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.181762][ T4867] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.181848][ T4867] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.181880][ T4867] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.198975][ T4867] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.203650][ T40] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.204817][ T40] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.212723][ T4867] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.218573][ T40] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.218613][ T40] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.223135][ T1187] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.223182][ T1187] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.319114][ T4867] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 33.337742][ T4867] veth0_vlan: entered promiscuous mode [ 33.341377][ T4867] veth1_vlan: entered promiscuous mode [ 33.349022][ T4867] veth0_macvtap: entered promiscuous mode [ 33.350982][ T4867] veth1_macvtap: entered promiscuous mode [ 33.355179][ T4867] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 33.358057][ T4867] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 33.362420][ T1362] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 33.362471][ T1362] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 33.362496][ T1362] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 33.362512][ T1362] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 33.494768][ T4976] nbd0: detected capacity change from 0 to 126 [ 34.226706][ T50] block nbd0: Receive control failed (result -104) [ 34.719943][ T50] Bluetooth: hci0: command tx timeout [ 36.799424][ T50] Bluetooth: hci0: command tx timeout [ 38.879529][ T50] Bluetooth: hci0: command tx timeout [ 40.959416][ T50] Bluetooth: hci0: command tx timeout [ 63.841197][ T4430] block nbd0: Possible stuck request 0000000031bfd375: control (read@0,4096B). Runtime 30 seconds [ 64.481054][ T1595] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.481108][ T1595] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.482678][ T9] cfg80211: failed to load regulatory.db 1970/01/01 00:01:28 executed programs: 1 [ 90.482098][ T4723] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 90.483092][ T4723] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 90.483347][ T4723] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 90.483690][ T4723] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 90.483882][ T4723] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 90.614595][ T5034] bridge0: port 1(bridge_slave_0) entered blocking state [ 90.614656][ T5034] bridge0: port 1(bridge_slave_0) entered disabled state [ 90.614711][ T5034] bridge_slave_0: entered allmulticast mode [ 90.615112][ T5034] bridge_slave_0: entered promiscuous mode [ 90.615776][ T5034] bridge0: port 2(bridge_slave_1) entered blocking state [ 90.615794][ T5034] bridge0: port 2(bridge_slave_1) entered disabled state [ 90.615871][ T5034] bridge_slave_1: entered allmulticast mode [ 90.616324][ T5034] bridge_slave_1: entered promiscuous mode [ 90.626853][ T5034] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 90.627806][ T5034] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 90.636180][ T5034] team0: Port device team_slave_0 added [ 90.636912][ T5034] team0: Port device team_slave_1 added [ 90.644287][ T5034] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 90.644308][ 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. [ 90.644322][ T5034] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 90.644797][ T5034] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 90.644808][ 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. [ 90.644822][ T5034] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 90.658502][ T5034] hsr_slave_0: entered promiscuous mode [ 90.659124][ T5034] hsr_slave_1: entered promiscuous mode [ 90.659342][ T5034] debugfs: 'hsr0' already exists in 'hsr' [ 90.659598][ T5034] Cannot create hsr debugfs directory [ 90.723891][ T5034] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.762910][ T5034] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.813290][ T5034] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 90.893613][ T5034] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 91.001939][ T5034] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 91.004558][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 91.005156][ T5034] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 91.006577][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 91.006833][ T5034] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 91.008681][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 91.008915][ T5034] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 91.010757][ T5034] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 91.017765][ T5034] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.017811][ T5034] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.017895][ T5034] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.017922][ T5034] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.033985][ T5034] 8021q: adding VLAN 0 to HW filter on device bond0 [ 91.036718][ T1187] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.038078][ T1187] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.042935][ T5034] 8021q: adding VLAN 0 to HW filter on device team0 [ 91.045063][ T1187] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.045107][ T1187] bridge0: port 1(bridge_slave_0) entered forwarding state [ 91.048339][ T1187] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.048374][ T1187] bridge0: port 2(bridge_slave_1) entered forwarding state [ 91.135807][ T5034] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 91.151591][ T5034] veth0_vlan: entered promiscuous mode [ 91.153424][ T5034] veth1_vlan: entered promiscuous mode [ 91.160170][ T5034] veth0_macvtap: entered promiscuous mode [ 91.161551][ T5034] veth1_macvtap: entered promiscuous mode [ 91.166031][ T5034] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 91.167126][ T5034] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 91.169610][ T1187] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.170336][ T1187] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.170358][ T1187] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 91.170374][ T1187] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 92.559458][ T50] Bluetooth: hci1: command tx timeout [ 93.920264][ T4430] block nbd0: Possible stuck request 0000000031bfd375: control (read@0,4096B). Runtime 60 seconds [ 94.639443][ T50] Bluetooth: hci1: command tx timeout [ 96.285657][ T4337] udevd[4337]: worker [4871] /devices/virtual/block/nbd0 is taking a long time [ 96.719644][ T50] Bluetooth: hci1: command tx timeout [ 98.799414][ T50] Bluetooth: hci1: command tx timeout [ 124.009929][ T4430] block nbd0: Possible stuck request 0000000031bfd375: control (read@0,4096B). Runtime 90 seconds [ 125.920064][ T1595] ieee802154 phy0 wpan0: encryption failed: -22 [ 125.920111][ T1595] ieee802154 phy1 wpan1: encryption failed: -22 1970/01/01 00:02:26 executed programs: 2 [ 148.322182][ T4723] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 148.323508][ T4723] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 148.325247][ T4723] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 148.326145][ T4723] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 148.326359][ T4723] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 148.459786][ T5076] bridge0: port 1(bridge_slave_0) entered blocking state [ 148.459855][ T5076] bridge0: port 1(bridge_slave_0) entered disabled state [ 148.459911][ T5076] bridge_slave_0: entered allmulticast mode [ 148.460326][ T5076] bridge_slave_0: entered promiscuous mode [ 148.461718][ T5076] bridge0: port 2(bridge_slave_1) entered blocking state [ 148.461768][ T5076] bridge0: port 2(bridge_slave_1) entered disabled state [ 148.461816][ T5076] bridge_slave_1: entered allmulticast mode [ 148.462235][ T5076] bridge_slave_1: entered promiscuous mode [ 148.474881][ T5076] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 148.475748][ T5076] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 148.482937][ T5076] team0: Port device team_slave_0 added [ 148.483739][ T5076] team0: Port device team_slave_1 added [ 148.490848][ T5076] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 148.490868][ 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. [ 148.490881][ T5076] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 148.492089][ T5076] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 148.492097][ 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. [ 148.492111][ T5076] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 148.508908][ T5076] hsr_slave_0: entered promiscuous mode [ 148.509233][ T5076] hsr_slave_1: entered promiscuous mode [ 148.510139][ T5076] debugfs: 'hsr0' already exists in 'hsr' [ 148.510152][ T5076] Cannot create hsr debugfs directory [ 148.594835][ T5076] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.662604][ T5076] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.742472][ T5076] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.793783][ T5076] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 148.922244][ T5076] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 148.924890][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 148.927089][ T5076] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 148.929122][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 148.930757][ T5076] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 148.932752][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 148.933064][ T5076] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 148.934787][ T5076] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 148.942016][ T5076] bridge0: port 2(bridge_slave_1) entered blocking state [ 148.942058][ T5076] bridge0: port 2(bridge_slave_1) entered forwarding state [ 148.942132][ T5076] bridge0: port 1(bridge_slave_0) entered blocking state [ 148.942160][ T5076] bridge0: port 1(bridge_slave_0) entered forwarding state [ 148.958753][ T5076] 8021q: adding VLAN 0 to HW filter on device bond0 [ 148.963023][ T15] bridge0: port 1(bridge_slave_0) entered disabled state [ 148.964187][ T15] bridge0: port 2(bridge_slave_1) entered disabled state [ 148.968480][ T5076] 8021q: adding VLAN 0 to HW filter on device team0 [ 148.971480][ T1362] bridge0: port 1(bridge_slave_0) entered blocking state [ 148.971517][ T1362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 148.974175][ T1362] bridge0: port 2(bridge_slave_1) entered blocking state [ 148.974211][ T1362] bridge0: port 2(bridge_slave_1) entered forwarding state [ 149.068766][ T5076] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 149.077497][ T5076] veth0_vlan: entered promiscuous mode [ 149.081695][ T5076] veth1_vlan: entered promiscuous mode [ 149.087984][ T5076] veth0_macvtap: entered promiscuous mode [ 149.089216][ T5076] veth1_macvtap: entered promiscuous mode [ 149.096870][ T5076] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 149.098026][ T5076] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 149.104016][ T1362] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 149.104104][ T1362] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 149.104137][ T1362] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 149.104160][ T1362] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 150.409455][ T4723] Bluetooth: hci2: command tx timeout [ 152.489442][ T4723] Bluetooth: hci2: command tx timeout [ 154.080065][ T4430] block nbd0: Possible stuck request 0000000031bfd375: control (read@0,4096B). Runtime 120 seconds [ 154.559717][ T4723] Bluetooth: hci2: command tx timeout [ 156.641607][ T4723] Bluetooth: hci2: command tx timeout [ 158.719780][ T4722] Bluetooth: hci0: command 0x0406 tx timeout [ 184.159760][ T4430] block nbd0: Possible stuck request 0000000031bfd375: control (read@0,4096B). Runtime 150 seconds [ 185.439501][ T31] INFO: task syz-executor.0:4962 blocked for more than 143 seconds. [ 185.439527][ T31] Not t ** replaying previous printk message ** [ 185.439527][ T31] Not tainted syzkaller #0 [ 185.440550][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 185.440559][ T31] task:syz-executor.0 state:D stack:0 pid:4962 tgid:4962 ppid:4867 task_flags:0x400040 flags:0x00000001 [ 185.440582][ T31] Call trace: [ 185.440587][ T31] __switch_to+0x2b0/0x6e0 (T) [ 185.440607][ T31] __schedule+0x1c04/0x2db8 [ 185.440618][ T31] schedule+0x13c/0x20c [ 185.440628][ T31] schedule_preempt_disabled+0x18/0x2c [ 185.440640][ T31] __mutex_lock+0x4fc/0xed0 [ 185.440650][ T31] mutex_lock_nested+0x24/0x30 [ 185.440661][ T31] bdev_release+0x128/0x328 [ 185.440674][ T31] blkdev_release+0x20/0x34 [ 185.440681][ T31] __fput+0x338/0x74c [ 185.440690][ T31] fput_close_sync+0x10c/0x278 [ 185.440698][ T31] __arm64_sys_close+0x7c/0x10c [ 185.440710][ T31] invoke_syscall+0x98/0x244 [ 185.440721][ T31] el0_svc_common+0xec/0x23c [ 185.440731][ T31] do_el0_svc+0x4c/0x5c [ 185.440741][ T31] el0_svc+0x64/0x260 [ 185.440749][ T31] el0t_64_sync_handler+0x48/0x148 [ 185.440757][ T31] el0t_64_sync+0x198/0x19c [ 185.440767][ T31] INFO: task syz-executor.0:4965 blocked for more than 143 seconds. [ 185.440774][ T31] Not tainted syzkaller #0 [ 185.440778][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 185.440781][ T31] task:syz-executor.0 state:D stack:0 pid:4965 tgid:4962 ppid:4867 task_flags:0x400140 flags:0x00000011 [ 185.440793][ T31] Call trace: [ 185.440796][ T31] __switch_to+0x2b0/0x6e0 (T) [ 185.440806][ T31] __schedule+0x1c04/0x2db8 [ 185.440816][ T31] schedule+0x13c/0x20c [ 185.440826][ T31] schedule_preempt_disabled+0x18/0x2c [ 185.440836][ T31] __mutex_lock+0x4fc/0xed0 [ 185.440846][ T31] mutex_lock_nested+0x24/0x30 [ 185.440857][ T31] bdev_release+0x128/0x328 [ 185.440867][ T31] blkdev_release+0x20/0x34 [ 185.440874][ T31] __fput+0x338/0x74c [ 185.440881][ T31] ____fput+0x20/0x30 [ 185.440889][ T31] task_work_run+0x1cc/0x25c [ 185.440899][ T31] exit_to_user_mode_loop+0x10c/0x17c [ 185.440908][ T31] el0_svc+0x18c/0x260 [ 185.440915][ T31] el0t_64_sync_handler+0x48/0x148 [ 185.440923][ T31] el0t_64_sync+0x198/0x19c [ 185.440945][ T31] [ 185.440945][ T31] Showing all locks held in the system: [ 185.440952][ T31] 1 lock held by khungtaskd/31: [ 185.440957][ T31] #0: ffff800088bf70c0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x4c/0x188 [ 185.440984][ T31] 2 locks held by pr/ttyAMA-1/41: [ 185.440996][ T31] 2 locks held by kworker/u8:4/1187: [ 185.441009][ T31] 2 locks held by getty/4487: [ 185.441014][ T31] #0: ffff0000c93c00a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 185.441034][ T31] #1: ffff8000923ab2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x348/0xf70 [ 185.441061][ T31] 1 lock held by udevd/4871: [ 185.441065][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 185.441089][ T31] 1 lock held by syz-executor.0/4962: [ 185.441094][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x128/0x328 [ 185.441116][ T31] 1 lock held by syz-executor.0/4965: [ 185.441120][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x128/0x328 [ 185.441143][ T31] 1 lock held by syz-executor.0/5067: [ 185.441148][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 185.441170][ T31] 1 lock held by syz-executor.0/5068: [ 185.441174][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 185.441197][ T31] 1 lock held by syz-executor.0/5109: [ 185.441201][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 185.441223][ T31] 1 lock held by syz-executor.0/5110: [ 185.441228][ T31] #0: ffff0000c7d17350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 185.441250][ T31] [ 185.441253][ T31] ============================================= [ 185.441253][ T31] [ 185.441257][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 185.493025][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 185.494160][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 [ 185.495604][ T31] Call trace: [ 185.496061][ T31] show_stack+0x2c/0x3c (C) [ 185.496744][ T31] __dump_stack+0x30/0x40 [ 185.497291][ T31] dump_stack_lvl+0x30/0x12c [ 185.497976][ T31] dump_stack+0x1c/0x28 [ 185.498531][ T31] vpanic+0x594/0xaf8 [ 185.499081][ T31] vpanic+0x0/0xaf8 [ 185.499601][ T31] hung_task_panic+0x0/0x2c [ 185.500282][ T31] kthread+0x304/0x3d4 [ 185.500820][ T31] ret_from_fork+0x10/0x20 [ 185.501424][ T31] SMP: stopping secondary CPUs [ 185.502089][ T31] Kernel Offset: disabled [ 185.502625][ T31] CPU features: 0x0a000000,003c0008,27020501,5427fea7 [ 185.503524][ T31] Memory Limit: none [ 185.752707][ T31] Rebooting in 86400 seconds..