[ 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 '10.128.0.230' (ECDSA) to the list of known hosts. 2020/06/07 14:50:46 parsed 1 programs syzkaller login: [ 71.343943][ T3645] kmemleak: Automatic memory scanning thread ended 2020/06/07 14:50:55 executed programs: 0 [ 78.817567][ T25] audit: type=1400 audit(1591541455.113:8): avc: denied { execmem } for pid=6453 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 78.824790][ T6454] IPVS: ftp: loaded support on port[0] = 21 [ 78.868881][ T6454] chnl_net:caif_netlink_parms(): no params data found [ 78.899490][ T6454] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.906687][ T6454] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.914552][ T6454] device bridge_slave_0 entered promiscuous mode [ 78.921353][ T6454] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.928671][ T6454] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.936225][ T6454] device bridge_slave_1 entered promiscuous mode [ 78.946109][ T6454] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.955695][ T6454] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.968000][ T6454] team0: Port device team_slave_0 added [ 78.974277][ T6454] team0: Port device team_slave_1 added [ 78.982633][ T6454] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.989907][ T6454] 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. [ 79.016097][ T6454] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.027342][ T6454] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.034581][ T6454] 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. [ 79.061743][ T6454] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.104783][ T6454] device hsr_slave_0 entered promiscuous mode [ 79.154083][ T6454] device hsr_slave_1 entered promiscuous mode [ 79.254121][ T6454] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.304736][ T6454] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.324783][ T6454] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.394662][ T6454] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.438399][ T6454] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.445435][ T6454] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.452624][ T6454] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.459638][ T6454] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.476465][ T6454] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.484911][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.492339][ T45] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.499927][ T45] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.508062][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.516643][ T6454] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.524846][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.532948][ T3700] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.539978][ T3700] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.554020][ T2596] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.562222][ T2596] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.569244][ T2596] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.577177][ T2596] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.585579][ T2596] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.593590][ T2596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.601549][ T2596] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.609701][ T6454] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.617173][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.627365][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.635082][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.643843][ T6454] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.654321][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.665953][ T6454] device veth0_vlan entered promiscuous mode [ 79.673286][ T6454] device veth1_vlan entered promiscuous mode [ 79.679821][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.687991][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.695944][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.703430][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.715316][ T2901] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.723307][ T2901] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.732337][ T6454] device veth0_macvtap entered promiscuous mode [ 79.739899][ T6454] device veth1_macvtap entered promiscuous mode [ 79.749501][ T6454] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.756739][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.765264][ T3700] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.774323][ T6454] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.781930][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 79.827308][ T6677] ubi0: attaching mtd0 [ 79.831550][ T6677] ubi0: scanning is finished [ 79.836458][ T6677] ubi0: empty MTD device detected [ 79.874505][ T6677] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 79.881958][ T6677] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 79.890993][ T6677] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 79.898411][ T6677] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 79.906294][ T6677] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 79.913041][ T6677] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 79.921243][ T6677] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 3210877443 [ 79.931579][ T6677] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 79.941538][ T6681] ubi0: background thread "ubi_bgt0d" started, PID 6681 2020/06/07 14:51:01 executed programs: 1 [ 85.585365][ T6686] ubi0: detaching mtd0 [ 85.589896][ T6686] ubi0: mtd0 is detached [ 85.594693][ T6686] ubi0: attaching mtd0 [ 85.598868][ T6686] ubi0: scanning is finished [ 85.673728][ T6686] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 85.681266][ T6686] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 85.688635][ T6686] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 85.695598][ T6686] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 85.703020][ T6686] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 85.709776][ T6686] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 85.717838][ T6686] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3210877443 [ 85.727811][ T6686] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 85.737700][ T6690] ubi0: background thread "ubi_bgt0d" started, PID 6690 [ 85.749882][ T6692] ubi0: detaching mtd0 [ 85.754635][ T6692] ubi0: mtd0 is detached [ 85.759025][ T6692] ubi0: attaching mtd0 [ 85.763867][ T6692] ubi0: scanning is finished [ 85.799523][ T6692] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 85.812086][ T6692] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 85.819706][ T6692] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 85.826820][ T6692] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 85.834350][ T6692] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 85.841105][ T6692] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 85.849424][ T6692] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3210877443 [ 85.859619][ T6692] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 85.869706][ T6697] ubi0: background thread "ubi_bgt0d" started, PID 6697 [ 91.333888][ T6699] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888127df6e80 (size 32): comm "syz-executor.0", pid 6677, jiffies 4294945260 (age 13.920s) 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: [<00000000dae8db0b>] erase_aeb+0x25/0x110 [<000000008773c0df>] ubi_wl_init+0x193/0x5c0 [<000000003bba54f8>] ubi_attach+0x611/0x18ba [<000000004a6d0527>] ubi_attach_mtd_dev+0x665/0xcc0 [<0000000023d650b4>] ctrl_cdev_ioctl+0x144/0x1b0 [<00000000e870028d>] ksys_ioctl+0xa6/0xd0 [<0000000033cf8352>] __x64_sys_ioctl+0x1a/0x20 [<0000000053190e63>] do_syscall_64+0x6e/0x220 [<000000008c87a992>] entry_SYSCALL_64_after_hwframe+0x44/0xa9