[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.164' (ECDSA) to the list of known hosts. syzkaller login: [ 28.460025] IPVS: ftp: loaded support on port[0] = 21 [ 28.529998] chnl_net:caif_netlink_parms(): no params data found [ 28.570778] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.577811] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.584721] device bridge_slave_0 entered promiscuous mode [ 28.592660] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.599770] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.606834] device bridge_slave_1 entered promiscuous mode [ 28.622331] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 28.630820] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 28.647718] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 28.654755] team0: Port device team_slave_0 added [ 28.660318] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 28.667421] team0: Port device team_slave_1 added [ 28.681170] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 28.687430] 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 1560 would solve the problem. [ 28.712725] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 28.723907] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 28.730192] 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 1560 would solve the problem. [ 28.755899] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 28.769599] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 28.777229] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 28.793909] device hsr_slave_0 entered promiscuous mode [ 28.799802] device hsr_slave_1 entered promiscuous mode [ 28.805680] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 28.812576] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 28.867528] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.873911] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.880752] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.887135] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.911910] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 28.918553] 8021q: adding VLAN 0 to HW filter on device bond0 [ 28.926129] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 28.933749] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.952293] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.959360] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.969540] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 28.976448] 8021q: adding VLAN 0 to HW filter on device team0 [ 28.984238] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.992444] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.998819] bridge0: port 1(bridge_slave_0) entered forwarding state [ 29.008831] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 29.016588] bridge0: port 2(bridge_slave_1) entered blocking state [ 29.022902] bridge0: port 2(bridge_slave_1) entered forwarding state [ 29.041257] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 29.051211] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 29.062058] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 29.070391] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 29.078031] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 29.085613] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 29.093039] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 29.100599] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 29.107364] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 29.118682] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 29.126122] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 29.132745] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 29.143429] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 29.191246] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 29.200281] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 29.230420] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 29.237615] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 29.244077] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 29.252812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 29.260686] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 29.267913] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 29.276825] device veth0_vlan entered promiscuous mode [ 29.284660] device veth1_vlan entered promiscuous mode [ 29.291038] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 29.300338] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 29.310429] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 29.319363] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 29.327064] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 29.334107] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 29.343304] device veth0_macvtap entered promiscuous mode [ 29.349895] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 29.358261] device veth1_macvtap entered promiscuous mode [ 29.366472] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 29.376069] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 29.386053] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 29.392746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 29.400759] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 29.410213] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 29.417543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 29.498520] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 29.515948] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.566690] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 29.602804] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.640698] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.690578] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.742273] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.790767] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.850264] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 29.880759] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 29.944255] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 30.455510] Bluetooth: hci0 command 0x0409 tx timeout write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 32.532979] Bluetooth: hci0 command 0x041b tx timeout write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.516591] nla_parse: 92 callbacks suppressed [ 34.516597] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.563414] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.605693] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 34.611490] Bluetooth: hci0 command 0x040f tx timeout write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.662061] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.718048] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 34.773545] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.852640] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 34.903331] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 34.966638] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 35.036845] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 36.690037] Bluetooth: hci0 command 0x0419 tx timeout write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.560509] nla_parse: 87 callbacks suppressed [ 39.560514] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.623375] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.682517] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.756864] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.809756] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.853847] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.908908] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 39.961067] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 40.006221] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 40.069814] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 44.568452] nla_parse: 89 callbacks suppressed [ 44.568457] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory [ 44.627887] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. [ 44.662419] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 44.717919] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 44.778805] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 44.839516] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 44.901496] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 44.958002] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 45.016752] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 45.073861] netlink: 4 bytes leftover after parsing attributes in process `syz-executor400'. write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program [ 46.737332] ================================================================== [ 46.744977] BUG: KASAN: use-after-free in refcount_dec_not_one+0x9a/0xc0 [ 46.751811] Read of size 4 at addr ffff88809ae4e3d8 by task systemd-udevd/10816 [ 46.759230] [ 46.760839] CPU: 1 PID: 10816 Comm: systemd-udevd Not tainted 4.14.299-syzkaller #0 [ 46.768691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 46.778131] Call Trace: [ 46.780737] dump_stack+0x1b2/0x281 [ 46.784347] print_address_description.cold+0x54/0x1d3 [ 46.789603] kasan_report_error.cold+0x8a/0x191 [ 46.794246] ? refcount_dec_not_one+0x9a/0xc0 [ 46.798802] __asan_report_load4_noabort+0x68/0x70 [ 46.803727] ? refcount_dec_not_one+0x9a/0xc0 [ 46.808207] refcount_dec_not_one+0x9a/0xc0 [ 46.812513] refcount_dec_and_mutex_lock+0x1a/0x60 [ 46.817722] nbd_release+0xf3/0x150 [ 46.821327] ? nbd_ioctl+0xad0/0xad0 [ 46.825017] __blkdev_put+0x5aa/0x800 [ 46.828799] ? revalidate_disk+0x1f0/0x1f0 [ 46.833008] ? locks_remove_file+0x2cd/0x420 [ 46.837395] ? blkdev_put+0x75/0x4c0 [ 46.841086] ? blkdev_put+0x4c0/0x4c0 [ 46.844878] blkdev_close+0x86/0xb0 [ 46.849089] __fput+0x25f/0x7a0 [ 46.852349] task_work_run+0x11f/0x190 [ 46.856216] exit_to_usermode_loop+0x1ad/0x200 [ 46.860771] do_syscall_64+0x4a3/0x640 [ 46.864643] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 46.869810] [ 46.871412] Allocated by task 10813: [ 46.875123] kasan_kmalloc+0xeb/0x160 [ 46.878901] kmem_cache_alloc_trace+0x131/0x3d0 [ 46.883543] nbd_dev_add+0x7c/0x800 [ 46.887144] nbd_genl_connect+0x3a4/0x13e0 [ 46.891357] genl_family_rcv_msg+0x572/0xb20 [ 46.895739] genl_rcv_msg+0xaf/0x140 [ 46.899424] netlink_rcv_skb+0x125/0x390 [ 46.903549] genl_rcv+0x24/0x40 [ 46.906806] netlink_unicast+0x437/0x610 [ 46.910844] netlink_sendmsg+0x648/0xbc0 [ 46.914877] sock_sendmsg+0xb5/0x100 [ 46.918564] ___sys_sendmsg+0x6c8/0x800 [ 46.922514] __sys_sendmsg+0xa3/0x120 [ 46.926285] SyS_sendmsg+0x27/0x40 [ 46.929811] do_syscall_64+0x1d5/0x640 [ 46.933693] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 46.938856] [ 46.940461] Freed by task 10816: [ 46.943801] kasan_slab_free+0xc3/0x1a0 [ 46.947752] kfree+0xc9/0x250 [ 46.950835] nbd_put.part.0+0x100/0x140 [ 46.954781] nbd_config_put+0x51c/0x6c0 [ 46.958728] nbd_release+0xdf/0x150 [ 46.962483] __blkdev_put+0x5aa/0x800 [ 46.966261] blkdev_close+0x86/0xb0 [ 46.969869] __fput+0x25f/0x7a0 [ 46.973136] task_work_run+0x11f/0x190 [ 46.977005] exit_to_usermode_loop+0x1ad/0x200 [ 46.981567] do_syscall_64+0x4a3/0x640 [ 46.985434] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 46.990596] [ 46.992199] The buggy address belongs to the object at ffff88809ae4e300 [ 46.992199] which belongs to the cache kmalloc-512 of size 512 [ 47.004835] The buggy address is located 216 bytes inside of [ 47.004835] 512-byte region [ffff88809ae4e300, ffff88809ae4e500) [ 47.019155] The buggy address belongs to the page: [ 47.024068] page:ffffea00026b9380 count:1 mapcount:0 mapping:ffff88809ae4e080 index:0x0 [ 47.032190] flags: 0xfff00000000100(slab) [ 47.036313] raw: 00fff00000000100 ffff88809ae4e080 0000000000000000 0000000100000006 [ 47.044177] raw: ffffea000270bb20 ffffea00026d7520 ffff88813fe74940 0000000000000000 [ 47.052059] page dumped because: kasan: bad access detected [ 47.057749] [ 47.059367] Memory state around the buggy address: [ 47.064272] ffff88809ae4e280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 47.071698] ffff88809ae4e300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 47.079030] >ffff88809ae4e380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 47.086477] ^ [ 47.092712] ffff88809ae4e400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 47.100060] ffff88809ae4e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 47.107393] ================================================================== [ 47.115008] Disabling lock debugging due to kernel taint [ 47.123427] Kernel panic - not syncing: panic_on_warn set ... [ 47.123427] [ 47.130801] CPU: 1 PID: 10816 Comm: systemd-udevd Tainted: G B 4.14.299-syzkaller #0 [ 47.139797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 47.149139] Call Trace: [ 47.151706] dump_stack+0x1b2/0x281 [ 47.155307] panic+0x1f9/0x42d [ 47.158497] ? add_taint.cold+0x16/0x16 [ 47.162445] ? ___preempt_schedule+0x16/0x18 [ 47.166827] kasan_end_report+0x43/0x49 [ 47.170776] kasan_report_error.cold+0xa7/0x191 [ 47.175432] ? refcount_dec_not_one+0x9a/0xc0 [ 47.179908] __asan_report_load4_noabort+0x68/0x70 [ 47.184992] ? refcount_dec_not_one+0x9a/0xc0 [ 47.189466] refcount_dec_not_one+0x9a/0xc0 [ 47.193783] refcount_dec_and_mutex_lock+0x1a/0x60 [ 47.198820] nbd_release+0xf3/0x150 [ 47.202523] ? nbd_ioctl+0xad0/0xad0 [ 47.206461] __blkdev_put+0x5aa/0x800 [ 47.210259] ? revalidate_disk+0x1f0/0x1f0 [ 47.214470] ? locks_remove_file+0x2cd/0x420 [ 47.218855] ? blkdev_put+0x75/0x4c0 [ 47.222556] ? blkdev_put+0x4c0/0x4c0 [ 47.226339] blkdev_close+0x86/0xb0 [ 47.230032] __fput+0x25f/0x7a0 [ 47.233288] task_work_run+0x11f/0x190 [ 47.237154] exit_to_usermode_loop+0x1ad/0x200 [ 47.241739] do_syscall_64+0x4a3/0x640 [ 47.245603] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 47.251052] Kernel Offset: disabled [ 47.254759] Rebooting in 86400 seconds..