[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. 2020/05/10 00:38:04 parsed 1 programs syzkaller login: [ 66.739958][ T3831] kmemleak: Automatic memory scanning thread ended 2020/05/10 00:38:11 executed programs: 0 [ 74.143073][ T25] audit: type=1400 audit(1589071091.643:8): avc: denied { execmem } for pid=6642 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 74.171562][ T6643] IPVS: ftp: loaded support on port[0] = 21 [ 74.195762][ T6643] chnl_net:caif_netlink_parms(): no params data found [ 74.256559][ T6643] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.263632][ T6643] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.271132][ T6643] device bridge_slave_0 entered promiscuous mode [ 74.277977][ T6643] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.285508][ T6643] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.292930][ T6643] device bridge_slave_1 entered promiscuous mode [ 74.303124][ T6643] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 74.313023][ T6643] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 74.325214][ T6643] team0: Port device team_slave_0 added [ 74.331652][ T6643] team0: Port device team_slave_1 added [ 74.340408][ T6643] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 74.347371][ T6643] 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. [ 74.373588][ T6643] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 74.384720][ T6643] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 74.391807][ T6643] 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. [ 74.418551][ T6643] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 74.469556][ T6643] device hsr_slave_0 entered promiscuous mode [ 74.518889][ T6643] device hsr_slave_1 entered promiscuous mode [ 74.608263][ T6643] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 74.649684][ T6643] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 74.729575][ T6643] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 74.779492][ T6643] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 74.833350][ T6643] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.840451][ T6643] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.847643][ T6643] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.854958][ T6643] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.871025][ T6643] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.879502][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.887021][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 74.894540][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 74.903399][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 74.911950][ T6643] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.919958][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.928376][ T3056] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.935405][ T3056] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.943582][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.952184][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.959200][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.973212][ T6643] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 74.983726][ T6643] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 74.995039][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.003364][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.011402][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.019501][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.027378][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.034672][ T3056] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.044813][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.052598][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.061581][ T6643] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.072287][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.083972][ T6643] device veth0_vlan entered promiscuous mode [ 75.090180][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.098027][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.105498][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.114628][ T6643] device veth1_vlan entered promiscuous mode [ 75.124892][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 75.133726][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 75.141713][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 75.150805][ T6643] device veth0_macvtap entered promiscuous mode [ 75.158541][ T6643] device veth1_macvtap entered promiscuous mode [ 75.167866][ T6643] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 75.175182][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 75.183720][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 75.192418][ T6643] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 75.200136][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 75.208257][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 75.249612][ T6866] ubi0: attaching mtd0 [ 75.253848][ T6866] ubi0: scanning is finished [ 75.258449][ T6866] ubi0: empty MTD device detected [ 75.309471][ T6866] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 75.317020][ T6866] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 75.324383][ T6866] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 75.331435][ T6866] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 75.338801][ T6866] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 75.345528][ T6866] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 75.353669][ T6866] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 1978258947 [ 75.363641][ T6866] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 75.373702][ T6869] ubi0: background thread "ubi_bgt0d" started, PID 6869 2020/05/10 00:38:18 executed programs: 1 [ 80.936255][ T6876] ubi0: detaching mtd0 [ 80.941204][ T6876] ubi0: mtd0 is detached [ 80.945698][ T6876] ubi0: attaching mtd0 [ 80.950360][ T6876] ubi0: scanning is finished [ 80.969170][ T6876] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 80.978579][ T6876] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.986022][ T6876] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.993709][ T6876] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 81.001480][ T6876] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 81.008648][ T6876] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 81.016766][ T6876] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1978258947 [ 81.027240][ T6876] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 81.037880][ T6880] ubi0: background thread "ubi_bgt0d" started, PID 6880 [ 81.049559][ T6882] ubi0: detaching mtd0 [ 81.054240][ T6882] ubi0: mtd0 is detached [ 81.058954][ T6882] ubi0: attaching mtd0 [ 81.063214][ T6882] ubi0: scanning is finished [ 81.099030][ T6882] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 81.108311][ T6882] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 81.115734][ T6882] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 81.123440][ T6882] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 81.131551][ T6882] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 81.138573][ T6882] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 81.146891][ T6882] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1978258947 [ 81.157731][ T6882] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 81.168230][ T6888] ubi0: background thread "ubi_bgt0d" started, PID 6888 [ 84.527736][ T0] NOHZ: local_softirq_pending 08 [ 86.569123][ T6890] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811fa14a00 (size 32): comm "syz-executor.0", pid 6866, jiffies 4294944801 (age 13.690s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 ................ backtrace: [<0000000095d06cea>] erase_aeb+0x25/0x110 [<0000000005b55d85>] ubi_wl_init+0x193/0x5c0 [<00000000df36beaf>] ubi_attach+0x611/0x18ba [<000000005dc0b207>] ubi_attach_mtd_dev+0x665/0xcc0 [<000000007c7d17a0>] ctrl_cdev_ioctl+0x144/0x1b0 [<00000000b292e0eb>] ksys_ioctl+0xa6/0xd0 [<00000000c951bd10>] __x64_sys_ioctl+0x1a/0x20 [<0000000086a15701>] do_syscall_64+0x6e/0x220 [<00000000ce745cf7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9