[ 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 '10.128.1.36' (ECDSA) to the list of known hosts. 2020/03/26 11:54:32 parsed 1 programs syzkaller login: [ 84.014910][ T3821] kmemleak: Automatic memory scanning thread ended 2020/03/26 11:54:42 executed programs: 0 [ 91.607285][ T25] audit: type=1400 audit(1585223682.359:8): avc: denied { execmem } for pid=6670 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 91.620264][ T6671] IPVS: ftp: loaded support on port[0] = 21 [ 91.652540][ T6671] chnl_net:caif_netlink_parms(): no params data found [ 91.742350][ T6671] bridge0: port 1(bridge_slave_0) entered blocking state [ 91.749501][ T6671] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.756846][ T6671] device bridge_slave_0 entered promiscuous mode [ 91.764099][ T6671] bridge0: port 2(bridge_slave_1) entered blocking state [ 91.771395][ T6671] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.778665][ T6671] device bridge_slave_1 entered promiscuous mode [ 91.788895][ T6671] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 91.799014][ T6671] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 91.811506][ T6671] team0: Port device team_slave_0 added [ 91.817576][ T6671] team0: Port device team_slave_1 added [ 91.827146][ T6671] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 91.834565][ T6671] 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. [ 91.860872][ T6671] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 91.872096][ T6671] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 91.879484][ T6671] 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. [ 91.905691][ T6671] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 91.980053][ T6671] device hsr_slave_0 entered promiscuous mode [ 92.049390][ T6671] device hsr_slave_1 entered promiscuous mode [ 92.139210][ T6671] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.170479][ T6671] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.230033][ T6671] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.279984][ T6671] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.333978][ T6671] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.341036][ T6671] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.348235][ T6671] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.355399][ T6671] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.371622][ T6671] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.381069][ T6874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 92.388679][ T6874] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.406522][ T6874] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.414002][ T6874] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 92.422716][ T6671] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.430579][ T6170] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 92.438681][ T6170] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.445746][ T6170] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.454297][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 92.462597][ T16] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.469651][ T16] bridge0: port 2(bridge_slave_1) entered forwarding state [ 92.480311][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 92.488353][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 92.499556][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 92.507680][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 92.516038][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 92.525093][ T6671] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 92.535193][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 92.542768][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 92.551636][ T6671] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 92.562045][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 92.573197][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 92.581221][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 92.588643][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 92.597241][ T6671] device veth0_vlan entered promiscuous mode [ 92.605209][ T6671] device veth1_vlan entered promiscuous mode [ 92.615295][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 92.624359][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 92.632517][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 92.641967][ T6671] device veth0_macvtap entered promiscuous mode [ 92.649568][ T6671] device veth1_macvtap entered promiscuous mode [ 92.658885][ T6671] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 92.666173][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 92.674879][ T453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 92.684418][ T6671] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 92.691858][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 92.700424][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 92.741838][ T6894] ubi0: attaching mtd0 [ 92.746101][ T6894] ubi0: scanning is finished [ 92.751998][ T6894] ubi0: empty MTD device detected [ 92.789729][ T6894] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 92.797220][ T6894] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 92.804915][ T6894] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 92.812146][ T6894] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 92.819725][ T6894] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 92.826460][ T6894] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 92.834696][ T6894] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 4254262918 [ 92.844859][ T6894] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 92.854960][ T6898] ubi0: background thread "ubi_bgt0d" started, PID 6898 2020/03/26 11:54:49 executed programs: 1 [ 98.525183][ T6903] ubi0: detaching mtd0 [ 98.529855][ T6903] ubi0: mtd0 is detached [ 98.534208][ T6903] ubi0: attaching mtd0 [ 98.538720][ T6903] ubi0: scanning is finished [ 98.608947][ T6903] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 98.616424][ T6903] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 98.624390][ T6903] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 98.631486][ T6903] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 98.639204][ T6903] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 98.645951][ T6903] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 98.654191][ T6903] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 4254262918 [ 98.664342][ T6903] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 98.674451][ T6906] ubi0: background thread "ubi_bgt0d" started, PID 6906 [ 98.685561][ T6909] ubi0: detaching mtd0 [ 98.689991][ T6909] ubi0: mtd0 is detached [ 98.694329][ T6909] ubi0: attaching mtd0 [ 98.698932][ T6909] ubi0: scanning is finished [ 98.728801][ T6909] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 98.736327][ T6909] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 98.743745][ T6909] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 98.750801][ T6909] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 98.758140][ T6909] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 98.765048][ T6909] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 98.773033][ T6909] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 4254262918 [ 98.782999][ T6909] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 98.792878][ T6915] ubi0: background thread "ubi_bgt0d" started, PID 6915 [ 104.282129][ T6917] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888127f473c0 (size 32): comm "syz-executor.0", pid 6894, jiffies 4294946544 (age 14.070s) 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: [<0000000086548708>] erase_aeb+0x25/0x110 [<000000006bc37e85>] ubi_wl_init+0x193/0x5c0 [<00000000ec7aa331>] ubi_attach+0x611/0x18ba [<000000009a846ad2>] ubi_attach_mtd_dev+0x584/0xca0 [<00000000ba425f42>] ctrl_cdev_ioctl+0x143/0x1b0 [<00000000bedfab1f>] ksys_ioctl+0xa6/0xd0 [<00000000d1881940>] __x64_sys_ioctl+0x1a/0x20 [<00000000bff25f38>] do_syscall_64+0x6e/0x220 [<00000000829e6545>] entry_SYSCALL_64_after_hwframe+0x44/0xa9