[ 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 '10.128.0.153' (ECDSA) to the list of known hosts. 2020/03/28 17:53:51 parsed 1 programs syzkaller login: [ 85.178781][ T3821] kmemleak: Automatic memory scanning thread ended 2020/03/28 17:54:01 executed programs: 0 [ 92.760914][ T25] audit: type=1400 audit(1585418041.358:8): avc: denied { execmem } for pid=6678 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 92.773137][ T6679] IPVS: ftp: loaded support on port[0] = 21 [ 92.809102][ T6679] chnl_net:caif_netlink_parms(): no params data found [ 92.862984][ T6679] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.870397][ T6679] bridge0: port 1(bridge_slave_0) entered disabled state [ 92.877631][ T6679] device bridge_slave_0 entered promiscuous mode [ 92.884763][ T6679] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.891966][ T6679] bridge0: port 2(bridge_slave_1) entered disabled state [ 92.899224][ T6679] device bridge_slave_1 entered promiscuous mode [ 92.909012][ T6679] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 92.918758][ T6679] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 92.931377][ T6679] team0: Port device team_slave_0 added [ 92.937571][ T6679] team0: Port device team_slave_1 added [ 92.946330][ T6679] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 92.953437][ T6679] 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. [ 92.979401][ T6679] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 92.990529][ T6679] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 92.997566][ T6679] 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. [ 93.029050][ T6679] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 93.120838][ T6679] device hsr_slave_0 entered promiscuous mode [ 93.180158][ T6679] device hsr_slave_1 entered promiscuous mode [ 93.239925][ T6679] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 93.270861][ T6679] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 93.310754][ T6679] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 93.370755][ T6679] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 93.444633][ T6679] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.451695][ T6679] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.458912][ T6679] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.465978][ T6679] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.482376][ T6679] 8021q: adding VLAN 0 to HW filter on device bond0 [ 93.491210][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 93.498647][ T16] bridge0: port 1(bridge_slave_0) entered disabled state [ 93.516278][ T16] bridge0: port 2(bridge_slave_1) entered disabled state [ 93.524327][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 93.532998][ T6679] 8021q: adding VLAN 0 to HW filter on device team0 [ 93.541027][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 93.549164][ T2937] bridge0: port 1(bridge_slave_0) entered blocking state [ 93.556238][ T2937] bridge0: port 1(bridge_slave_0) entered forwarding state [ 93.570101][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 93.578244][ T16] bridge0: port 2(bridge_slave_1) entered blocking state [ 93.585287][ T16] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.592870][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 93.601319][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 93.609313][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 93.617288][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 93.625702][ T6679] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 93.633243][ T2678] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 93.643538][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 93.651167][ T2937] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 93.660384][ T6679] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.671441][ T3870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 93.683375][ T6679] device veth0_vlan entered promiscuous mode [ 93.690281][ T3571] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 93.698189][ T3571] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 93.705697][ T3571] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 93.714547][ T6679] device veth1_vlan entered promiscuous mode [ 93.724571][ T3870] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 93.732384][ T3870] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 93.740272][ T3870] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 93.749123][ T6679] device veth0_macvtap entered promiscuous mode [ 93.756613][ T6679] device veth1_macvtap entered promiscuous mode [ 93.766141][ T6679] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.773565][ T3571] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 93.782106][ T3571] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 93.791564][ T6679] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 93.800394][ T3870] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 93.842115][ T6901] ubi0: attaching mtd0 [ 93.846375][ T6901] ubi0: scanning is finished [ 93.851962][ T6901] ubi0: empty MTD device detected [ 93.890739][ T6901] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 93.898276][ T6901] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 93.905659][ T6901] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 93.912707][ T6901] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 93.920086][ T6901] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 93.926923][ T6901] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 93.935188][ T6901] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 1420214865 [ 93.945206][ T6901] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 93.955129][ T6905] ubi0: background thread "ubi_bgt0d" started, PID 6905 2020/03/28 17:54:08 executed programs: 1 [ 99.680582][ T6910] ubi0: detaching mtd0 [ 99.685174][ T6910] ubi0: mtd0 is detached [ 99.690184][ T6910] ubi0: attaching mtd0 [ 99.694472][ T6910] ubi0: scanning is finished [ 99.729915][ T6910] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 99.737406][ T6910] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 99.744937][ T6910] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 99.752088][ T6910] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 99.759636][ T6910] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 99.766381][ T6910] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 99.774597][ T6910] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1420214865 [ 99.784725][ T6910] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 99.794823][ T6913] ubi0: background thread "ubi_bgt0d" started, PID 6913 [ 99.806066][ T6916] ubi0: detaching mtd0 [ 99.810778][ T6916] ubi0: mtd0 is detached [ 99.815145][ T6916] ubi0: attaching mtd0 [ 99.819949][ T6916] ubi0: scanning is finished [ 99.879756][ T6916] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 99.887244][ T6916] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 99.895176][ T6916] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 99.902428][ T6916] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 99.910000][ T6916] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 99.916742][ T6916] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 99.924962][ T6916] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1420214865 [ 99.935104][ T6916] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 99.945223][ T6922] ubi0: background thread "ubi_bgt0d" started, PID 6922 [ 103.088847][ T0] NOHZ: local_softirq_pending 08 [ 105.557657][ T6924] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888127ea2660 (size 32): comm "syz-executor.0", pid 6901, jiffies 4294946660 (age 14.200s) 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: [<00000000d819cdf8>] erase_aeb+0x25/0x110 [<0000000090c4f710>] ubi_wl_init+0x193/0x5c0 [<00000000aedad802>] ubi_attach+0x611/0x18ba [<00000000cf202b87>] ubi_attach_mtd_dev+0x584/0xca0 [<0000000088b2d1bb>] ctrl_cdev_ioctl+0x143/0x1b0 [<00000000d5ca9f91>] ksys_ioctl+0xa6/0xd0 [<0000000004dc3c87>] __x64_sys_ioctl+0x1a/0x20 [<00000000f605cece>] do_syscall_64+0x6e/0x220 [<0000000008cc4403>] entry_SYSCALL_64_after_hwframe+0x44/0xa9