[ 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 '10.128.15.195' (ECDSA) to the list of known hosts. 2020/04/22 07:54:01 parsed 1 programs syzkaller login: [ 73.371107][ T3830] kmemleak: Automatic memory scanning thread ended 2020/04/22 07:54:10 executed programs: 0 [ 80.820522][ T25] audit: type=1400 audit(1587542050.357:8): avc: denied { execmem } for pid=6651 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 80.827808][ T6652] IPVS: ftp: loaded support on port[0] = 21 [ 80.865309][ T6652] chnl_net:caif_netlink_parms(): no params data found [ 80.898347][ T6652] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.906259][ T6652] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.913944][ T6652] device bridge_slave_0 entered promiscuous mode [ 80.920983][ T6652] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.928154][ T6652] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.935664][ T6652] device bridge_slave_1 entered promiscuous mode [ 80.945473][ T6652] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.955502][ T6652] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.967696][ T6652] team0: Port device team_slave_0 added [ 80.973865][ T6652] team0: Port device team_slave_1 added [ 80.982314][ T6652] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.989240][ T6652] 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. [ 81.015528][ T6652] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 81.026634][ T6652] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 81.033737][ T6652] 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. [ 81.059747][ T6652] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 81.111346][ T6652] device hsr_slave_0 entered promiscuous mode [ 81.150704][ T6652] device hsr_slave_1 entered promiscuous mode [ 81.220218][ T6652] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 81.261561][ T6652] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 81.291325][ T6652] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 81.361360][ T6652] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 81.405127][ T6652] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.412253][ T6652] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.419459][ T6652] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.426492][ T6652] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.442736][ T6652] 8021q: adding VLAN 0 to HW filter on device bond0 [ 81.451112][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 81.458543][ T6855] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.466651][ T6855] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.474249][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 81.482862][ T6652] 8021q: adding VLAN 0 to HW filter on device team0 [ 81.490934][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 81.500372][ T2791] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.507404][ T2791] bridge0: port 1(bridge_slave_0) entered forwarding state [ 81.521125][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 81.529222][ T6855] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.536241][ T6855] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.543707][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 81.552064][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 81.560018][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 81.568428][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 81.576666][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 81.585787][ T6652] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 81.595667][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 81.603194][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 81.612173][ T6652] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 81.622578][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 81.633800][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 81.641830][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 81.649141][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 81.657563][ T6652] device veth0_vlan entered promiscuous mode [ 81.665569][ T6652] device veth1_vlan entered promiscuous mode [ 81.675581][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 81.683456][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 81.691396][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 81.700172][ T6652] device veth0_macvtap entered promiscuous mode [ 81.707495][ T6652] device veth1_macvtap entered promiscuous mode [ 81.716748][ T6652] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 81.723978][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 81.732418][ T6855] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 81.741422][ T6652] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 81.750921][ T2791] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.790813][ T6876] ubi0: attaching mtd0 [ 81.795044][ T6876] ubi0: scanning is finished [ 81.799626][ T6876] ubi0: empty MTD device detected [ 81.831117][ T6876] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 81.838577][ T6876] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 81.846062][ T6876] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 81.853101][ T6876] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 81.860654][ T6876] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 81.867389][ T6876] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 81.875809][ T6876] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 3366316009 [ 81.885803][ T6876] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 81.895707][ T6879] ubi0: background thread "ubi_bgt0d" started, PID 6879 2020/04/22 07:54:17 executed programs: 1 [ 87.550871][ T6885] ubi0: detaching mtd0 [ 87.555401][ T6885] ubi0: mtd0 is detached [ 87.559873][ T6885] ubi0: attaching mtd0 [ 87.564031][ T6885] ubi0: scanning is finished [ 87.600130][ T6885] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 87.614649][ T6885] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 87.622101][ T6885] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 87.629006][ T6885] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 87.636621][ T6885] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 87.643515][ T6885] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 87.651625][ T6885] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3366316009 [ 87.661800][ T6885] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 87.671884][ T6889] ubi0: background thread "ubi_bgt0d" started, PID 6889 [ 87.683117][ T6891] ubi0: detaching mtd0 [ 87.687579][ T6891] ubi0: mtd0 is detached [ 87.692235][ T6891] ubi0: attaching mtd0 [ 87.696464][ T6891] ubi0: scanning is finished [ 87.759961][ T6891] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 87.767460][ T6891] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 87.775904][ T6891] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 87.782963][ T6891] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 87.790535][ T6891] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 87.797277][ T6891] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 87.805519][ T6891] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3366316009 [ 87.816480][ T6891] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 87.826553][ T6896] ubi0: background thread "ubi_bgt0d" started, PID 6896 [ 93.325060][ T6899] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811f989960 (size 32): comm "syz-executor.0", pid 6876, jiffies 4294945455 (age 13.960s) hex dump (first 32 bytes): 00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de ........"....... 00 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 ................ backtrace: [<0000000022d704d6>] erase_aeb+0x25/0x110 [<00000000edd54d05>] ubi_wl_init+0x193/0x5c0 [<000000001de2167f>] ubi_attach+0x611/0x18ba [<000000007cb82fbd>] ubi_attach_mtd_dev+0x665/0xcc0 [<000000009758a810>] ctrl_cdev_ioctl+0x144/0x1b0 [<0000000057a60509>] ksys_ioctl+0xa6/0xd0 [<0000000056ed61d9>] __x64_sys_ioctl+0x1a/0x20 [<00000000abd7ba72>] do_syscall_64+0x6e/0x220 [<00000000bf03731f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9