[ 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 '10.128.1.44' (ECDSA) to the list of known hosts. 2020/05/11 10:21:32 parsed 1 programs syzkaller login: [ 71.494602][ T3835] kmemleak: Automatic memory scanning thread ended 2020/05/11 10:21:41 executed programs: 0 [ 78.991402][ T26] audit: type=1400 audit(1589192501.164:8): avc: denied { execmem } for pid=6707 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 78.998542][ T6708] IPVS: ftp: loaded support on port[0] = 21 [ 79.040863][ T6708] chnl_net:caif_netlink_parms(): no params data found [ 79.100842][ T6708] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.108303][ T6708] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.115546][ T6708] device bridge_slave_0 entered promiscuous mode [ 79.122748][ T6708] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.130253][ T6708] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.137751][ T6708] device bridge_slave_1 entered promiscuous mode [ 79.147282][ T6708] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.157129][ T6708] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.169673][ T6708] team0: Port device team_slave_0 added [ 79.175696][ T6708] team0: Port device team_slave_1 added [ 79.185337][ T6708] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.192697][ T6708] 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. [ 79.218783][ T6708] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.230364][ T6708] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.237278][ T6708] 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. [ 79.263494][ T6708] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.358297][ T6708] device hsr_slave_0 entered promiscuous mode [ 79.427581][ T6708] device hsr_slave_1 entered promiscuous mode [ 79.496544][ T6708] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.558266][ T6708] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.588325][ T6708] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.638261][ T6708] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.712606][ T6708] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.719779][ T6708] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.727238][ T6708] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.734462][ T6708] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.751313][ T6708] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.760101][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.768237][ T44] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.775522][ T44] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.783203][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.792676][ T6708] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.800646][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.808983][ T25] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.816418][ T25] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.827555][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.835702][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.842781][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.852357][ T3591] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.860712][ T3591] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.869270][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.881080][ T6708] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 79.891633][ T6708] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.902682][ T3591] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.910866][ T3591] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.919293][ T3591] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.929468][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.936790][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.946378][ T6708] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.956854][ T3591] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.969464][ T6708] device veth0_vlan entered promiscuous mode [ 79.977257][ T6708] device veth1_vlan entered promiscuous mode [ 79.983789][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.992089][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.999670][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.007033][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.018956][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.027993][ T6708] device veth0_macvtap entered promiscuous mode [ 80.035299][ T6708] device veth1_macvtap entered promiscuous mode [ 80.042584][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.054327][ T6708] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.061772][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.069635][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 80.078479][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.088031][ T6708] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.095446][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.104014][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.147903][ T6931] ubi0: attaching mtd0 [ 80.152175][ T6931] ubi0: scanning is finished [ 80.156761][ T6931] ubi0: empty MTD device detected [ 80.196181][ T6931] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 80.203802][ T6931] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.211427][ T6931] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.218711][ T6931] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 80.226053][ T6931] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 80.233086][ T6931] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 80.241435][ T6931] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 985474765 [ 80.251600][ T6931] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 80.261810][ T6935] ubi0: background thread "ubi_bgt0d" started, PID 6935 2020/05/11 10:21:48 executed programs: 1 [ 86.100316][ T6940] ubi0: detaching mtd0 [ 86.104966][ T6940] ubi0: mtd0 is detached [ 86.110110][ T6940] ubi0: attaching mtd0 [ 86.114285][ T6940] ubi0: scanning is finished [ 86.167146][ T6940] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 86.174663][ T6940] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 86.182016][ T6940] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 86.189232][ T6940] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 86.196688][ T6940] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 86.203677][ T6940] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 86.211676][ T6940] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 985474765 [ 86.221720][ T6940] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 86.231620][ T6944] ubi0: background thread "ubi_bgt0d" started, PID 6944 [ 86.244018][ T6946] ubi0: detaching mtd0 [ 86.248790][ T6946] ubi0: mtd0 is detached [ 86.253160][ T6946] ubi0: attaching mtd0 [ 86.257744][ T6946] ubi0: scanning is finished [ 86.316888][ T6946] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 86.324392][ T6946] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 86.331861][ T6946] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 86.339123][ T6946] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 86.346632][ T6946] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 86.353383][ T6946] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 86.361351][ T6946] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 985474765 [ 86.371234][ T6946] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 86.382180][ T6951] ubi0: background thread "ubi_bgt0d" started, PID 6951 [ 92.038335][ T6954] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888127f372c0 (size 32): comm "syz-executor.0", pid 6931, jiffies 4294945277 (age 14.410s) 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: [<0000000049aad7d8>] erase_aeb+0x25/0x110 [<000000004a6c95d3>] ubi_wl_init+0x193/0x5c0 [<00000000a1d58128>] ubi_attach+0x611/0x18ba [<00000000eb6b9da4>] ubi_attach_mtd_dev+0x665/0xcc0 [<000000000a8ebd80>] ctrl_cdev_ioctl+0x144/0x1b0 [<000000007ada47ea>] ksys_ioctl+0xa6/0xd0 [<00000000bd687125>] __x64_sys_ioctl+0x1a/0x20 [<000000006f0eae66>] do_syscall_64+0x6e/0x220 [<00000000eaee3164>] entry_SYSCALL_64_after_hwframe+0x44/0xa9