[ 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 '10.128.0.118' (ECDSA) to the list of known hosts. 2020/04/03 20:34:17 parsed 1 programs syzkaller login: [ 65.670619][ T3823] kmemleak: Automatic memory scanning thread ended 2020/04/03 20:34:26 executed programs: 0 [ 73.136247][ T25] audit: type=1400 audit(1585946066.626:8): avc: denied { execmem } for pid=6630 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 73.143843][ T6631] IPVS: ftp: loaded support on port[0] = 21 [ 73.183269][ T6631] chnl_net:caif_netlink_parms(): no params data found [ 73.253558][ T6631] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.260643][ T6631] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.268134][ T6631] device bridge_slave_0 entered promiscuous mode [ 73.275078][ T6631] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.282091][ T6631] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.289880][ T6631] device bridge_slave_1 entered promiscuous mode [ 73.299511][ T6631] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.309186][ T6631] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.321189][ T6631] team0: Port device team_slave_0 added [ 73.327480][ T6631] team0: Port device team_slave_1 added [ 73.335974][ T6631] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.342922][ T6631] 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. [ 73.369165][ T6631] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.380841][ T6631] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.389644][ T6631] 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. [ 73.417470][ T6631] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.445558][ T6631] device hsr_slave_0 entered promiscuous mode [ 73.494869][ T6631] device hsr_slave_1 entered promiscuous mode [ 73.565426][ T6631] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.595746][ T6631] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.655505][ T6631] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.725475][ T6631] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.779322][ T6631] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.786358][ T6631] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.793666][ T6631] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.800851][ T6631] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.817732][ T6631] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.826191][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.833758][ T3052] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.841309][ T3052] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.849308][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.858227][ T6631] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.866079][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.874278][ T44] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.881322][ T44] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.889671][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.898164][ T43] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.906576][ T43] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.924986][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.933890][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.943874][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.953538][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.966821][ T6631] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.980394][ T6631] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.990299][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 74.002855][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 74.011999][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 74.023072][ T6631] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 74.034559][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 74.047872][ T6631] device veth0_vlan entered promiscuous mode [ 74.055156][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 74.063043][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 74.070745][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 74.079401][ T6631] device veth1_vlan entered promiscuous mode [ 74.085735][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 74.097589][ T6209] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 74.105343][ T6209] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.113709][ T6631] device veth0_macvtap entered promiscuous mode [ 74.121173][ T6631] device veth1_macvtap entered promiscuous mode [ 74.130618][ T6631] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.137898][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.146252][ T3052] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.155053][ T6631] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.162461][ T6209] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.205951][ T6853] ubi0: attaching mtd0 [ 74.210178][ T6853] ubi0: scanning is finished [ 74.215256][ T6853] ubi0: empty MTD device detected [ 74.246072][ T6853] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 74.253546][ T6853] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 74.260985][ T6853] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 74.267945][ T6853] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 74.275307][ T6853] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 74.282040][ T6853] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 74.290016][ T6853] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 3059024421 [ 74.300063][ T6853] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 74.310035][ T6857] ubi0: background thread "ubi_bgt0d" started, PID 6857 [ 74.317280][ T6853] ubi0: detaching mtd0 [ 74.321666][ T6853] ubi0: mtd0 is detached 2020/04/03 20:34:33 executed programs: 1 [ 79.938106][ T6864] ubi0: attaching mtd0 [ 79.942865][ T6864] ubi0: scanning is finished [ 79.985206][ T6864] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 79.993498][ T6864] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.001321][ T6864] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.009255][ T6864] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 80.017338][ T6864] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 80.024940][ T6864] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 80.035973][ T6864] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3059024421 [ 80.047699][ T6864] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 80.058680][ T6866] ubi0: background thread "ubi_bgt0d" started, PID 6866 [ 80.058754][ T6864] ubi0: detaching mtd0 [ 80.071508][ T6864] ubi0: mtd0 is detached [ 80.081447][ T6870] ubi0: attaching mtd0 [ 80.086437][ T6870] ubi0: scanning is finished [ 80.116004][ T6870] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 80.131469][ T6870] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.139187][ T6870] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.146461][ T6870] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 80.153834][ T6870] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 80.160887][ T6870] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 80.169078][ T6870] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3059024421 [ 80.179518][ T6870] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 80.190662][ T6873] ubi0: background thread "ubi_bgt0d" started, PID 6873 [ 80.190742][ T6870] ubi0: detaching mtd0 [ 80.202002][ T6870] ubi0: mtd0 is detached [ 81.402415][ T6878] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888128ec7040 (size 32): comm "syz-executor.0", pid 6853, jiffies 4294944697 (age 13.820s) 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: [<000000006f0f620f>] erase_aeb+0x25/0x110 [<000000004c1617f4>] ubi_wl_init+0x193/0x5c0 [<00000000ee3ac022>] ubi_attach+0x611/0x18ba [<0000000084659a0f>] ubi_attach_mtd_dev+0x665/0xcc0 [<00000000f97035cc>] ctrl_cdev_ioctl+0x144/0x1b0 [<00000000452a2502>] ksys_ioctl+0xa6/0xd0 [<0000000058b46e3a>] __x64_sys_ioctl+0x1a/0x20 [<00000000463c1ea1>] do_syscall_64+0x6e/0x220 [<00000000f8bee2c4>] entry_SYSCALL_64_after_hwframe+0x44/0xa9