[ 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 '10.128.0.115' (ECDSA) to the list of known hosts. 2020/04/01 10:41:11 parsed 1 programs syzkaller login: [ 78.026695][ T3828] kmemleak: Automatic memory scanning thread ended 2020/04/01 10:41:20 executed programs: 0 [ 85.369455][ T25] audit: type=1400 audit(1585737680.046:8): avc: denied { execmem } for pid=6613 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 85.381210][ T6614] IPVS: ftp: loaded support on port[0] = 21 [ 85.415667][ T6614] chnl_net:caif_netlink_parms(): no params data found [ 85.467220][ T6614] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.474296][ T6614] bridge0: port 1(bridge_slave_0) entered disabled state [ 85.481515][ T6614] device bridge_slave_0 entered promiscuous mode [ 85.488888][ T6614] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.496079][ T6614] bridge0: port 2(bridge_slave_1) entered disabled state [ 85.503277][ T6614] device bridge_slave_1 entered promiscuous mode [ 85.513113][ T6614] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 85.522793][ T6614] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 85.535192][ T6614] team0: Port device team_slave_0 added [ 85.541252][ T6614] team0: Port device team_slave_1 added [ 85.549985][ T6614] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 85.557175][ T6614] 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. [ 85.583221][ T6614] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 85.594385][ T6614] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 85.601302][ T6614] 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. [ 85.627564][ T6614] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 85.664245][ T6614] device hsr_slave_0 entered promiscuous mode [ 85.733692][ T6614] device hsr_slave_1 entered promiscuous mode [ 85.805202][ T6614] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 85.834448][ T6614] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 85.904453][ T6614] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 85.924299][ T6614] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 85.978340][ T6614] bridge0: port 2(bridge_slave_1) entered blocking state [ 85.985385][ T6614] bridge0: port 2(bridge_slave_1) entered forwarding state [ 85.992571][ T6614] bridge0: port 1(bridge_slave_0) entered blocking state [ 85.999591][ T6614] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.016404][ T6614] 8021q: adding VLAN 0 to HW filter on device bond0 [ 86.024963][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 86.032402][ T6817] bridge0: port 1(bridge_slave_0) entered disabled state [ 86.040460][ T6817] bridge0: port 2(bridge_slave_1) entered disabled state [ 86.047912][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 86.056786][ T6614] 8021q: adding VLAN 0 to HW filter on device team0 [ 86.064807][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 86.072914][ T3059] bridge0: port 1(bridge_slave_0) entered blocking state [ 86.079958][ T3059] bridge0: port 1(bridge_slave_0) entered forwarding state [ 86.094073][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 86.102170][ T6817] bridge0: port 2(bridge_slave_1) entered blocking state [ 86.109209][ T6817] bridge0: port 2(bridge_slave_1) entered forwarding state [ 86.117030][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 86.125124][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 86.133231][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 86.141149][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 86.149185][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 86.157320][ T6614] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 86.167422][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 86.174934][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 86.184220][ T6614] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 86.194755][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 86.207144][ T6614] device veth0_vlan entered promiscuous mode [ 86.213709][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 86.221537][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 86.229056][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 86.238193][ T6614] device veth1_vlan entered promiscuous mode [ 86.248664][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 86.256428][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 86.264299][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 86.273043][ T6614] device veth0_macvtap entered promiscuous mode [ 86.280281][ T6614] device veth1_macvtap entered promiscuous mode [ 86.289759][ T6614] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 86.296998][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 86.305372][ T3059] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 86.314320][ T6614] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 86.321692][ T6817] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 86.367565][ T6837] ubi0: attaching mtd0 [ 86.371829][ T6837] ubi0: scanning is finished [ 86.377014][ T6837] ubi0: empty MTD device detected [ 86.424211][ T6837] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 86.431704][ T6837] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 86.439245][ T6837] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 86.446330][ T6837] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 86.453802][ T6837] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 86.460550][ T6837] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 86.468555][ T6837] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 1992446006 [ 86.478704][ T6837] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 86.488754][ T6841] ubi0: background thread "ubi_bgt0d" started, PID 6841 2020/04/01 10:41:26 executed programs: 1 [ 91.985692][ T6846] ubi0: detaching mtd0 [ 91.990202][ T6846] ubi0: mtd0 is detached [ 91.994980][ T6846] ubi0: attaching mtd0 [ 91.999151][ T6846] ubi0: scanning is finished [ 92.074436][ T6846] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 92.081959][ T6846] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 92.089379][ T6846] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 92.096390][ T6846] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 92.104073][ T6846] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 92.110825][ T6846] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 92.118819][ T6846] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1992446006 [ 92.128840][ T6846] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 92.138911][ T6850] ubi0: background thread "ubi_bgt0d" started, PID 6850 [ 92.151548][ T6852] ubi0: detaching mtd0 [ 92.156247][ T6852] ubi0: mtd0 is detached [ 92.160650][ T6852] ubi0: attaching mtd0 [ 92.165102][ T6852] ubi0: scanning is finished [ 92.198358][ T6852] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 92.205905][ T6852] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 92.213092][ T6852] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 92.220451][ T6852] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 92.228015][ T6852] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 92.234916][ T6852] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 92.242873][ T6852] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1992446006 [ 92.253083][ T6852] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 92.263165][ T6858] ubi0: background thread "ubi_bgt0d" started, PID 6858 [ 97.641210][ T6859] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811fac6580 (size 32): comm "syz-executor.0", pid 6837, jiffies 4294945912 (age 13.620s) hex dump (first 32 bytes): 00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de ........"....... 00 10 00 00 00 00 00 00 01 00 00 00 02 00 00 00 ................ backtrace: [<000000007d6d85b0>] erase_aeb+0x25/0x110 [<00000000ffd3d529>] ubi_wl_init+0x193/0x5c0 [<000000004430918e>] ubi_attach+0x611/0x18ba [<0000000051cafc00>] ubi_attach_mtd_dev+0x584/0xca0 [<00000000a797eae4>] ctrl_cdev_ioctl+0x143/0x1b0 [<00000000d11e29fc>] ksys_ioctl+0xa6/0xd0 [<00000000d10f60c2>] __x64_sys_ioctl+0x1a/0x20 [<000000009d2ff695>] do_syscall_64+0x6e/0x220 [<00000000202e3d1f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9