[ 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 '10.128.0.31' (ECDSA) to the list of known hosts. 2020/05/28 08:20:53 parsed 1 programs syzkaller login: [ 97.318633][ T3833] kmemleak: Automatic memory scanning thread ended 2020/05/28 08:21:01 executed programs: 0 [ 104.780719][ T25] audit: type=1400 audit(1590654061.229:8): avc: denied { execmem } for pid=6624 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 104.809107][ T6625] IPVS: ftp: loaded support on port[0] = 21 [ 104.834752][ T6625] chnl_net:caif_netlink_parms(): no params data found [ 104.898689][ T6625] bridge0: port 1(bridge_slave_0) entered blocking state [ 104.906004][ T6625] bridge0: port 1(bridge_slave_0) entered disabled state [ 104.913967][ T6625] device bridge_slave_0 entered promiscuous mode [ 104.921278][ T6625] bridge0: port 2(bridge_slave_1) entered blocking state [ 104.928617][ T6625] bridge0: port 2(bridge_slave_1) entered disabled state [ 104.936150][ T6625] device bridge_slave_1 entered promiscuous mode [ 104.945946][ T6625] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 104.955865][ T6625] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 104.967952][ T6625] team0: Port device team_slave_0 added [ 104.973962][ T6625] team0: Port device team_slave_1 added [ 104.983247][ T6625] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 104.990485][ T6625] 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. [ 105.017628][ T6625] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 105.028818][ T6625] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 105.035742][ T6625] 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. [ 105.061926][ T6625] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 105.097394][ T6625] device hsr_slave_0 entered promiscuous mode [ 105.156655][ T6625] device hsr_slave_1 entered promiscuous mode [ 105.225353][ T6625] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 105.267376][ T6625] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 105.327374][ T6625] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 105.377333][ T6625] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 105.451403][ T6625] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.458456][ T6625] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.465872][ T6625] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.472897][ T6625] bridge0: port 1(bridge_slave_0) entered forwarding state [ 105.488790][ T6625] 8021q: adding VLAN 0 to HW filter on device bond0 [ 105.497953][ T6828] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 105.505682][ T6828] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.513924][ T6828] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.521560][ T6828] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 105.530483][ T6625] 8021q: adding VLAN 0 to HW filter on device team0 [ 105.538510][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 105.547190][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.555076][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 105.563613][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 105.572231][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.579297][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 105.590161][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 105.599114][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 105.608934][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 105.620339][ T6625] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 105.631218][ T6625] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 105.643004][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 105.651247][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 105.659523][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 105.669690][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 105.677393][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 105.686246][ T6625] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 105.697115][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 105.709609][ T6625] device veth0_vlan entered promiscuous mode [ 105.716780][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 105.724930][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 105.732821][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 105.742894][ T6625] device veth1_vlan entered promiscuous mode [ 105.753568][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 105.761347][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 105.769510][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 105.778640][ T6625] device veth0_macvtap entered promiscuous mode [ 105.786091][ T6625] device veth1_macvtap entered promiscuous mode [ 105.795630][ T6625] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 105.803027][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 105.811724][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 105.820781][ T6625] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 105.828371][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 105.872563][ T6848] ubi0: attaching mtd0 [ 105.877049][ T6848] ubi0: scanning is finished [ 105.881850][ T6848] ubi0: empty MTD device detected [ 105.927192][ T6848] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 105.934889][ T6848] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 105.943395][ T6848] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 105.950850][ T6848] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 105.958726][ T6848] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 105.965471][ T6848] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 105.974141][ T6848] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 2468963980 [ 105.984713][ T6848] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 105.995222][ T6852] ubi0: background thread "ubi_bgt0d" started, PID 6852 2020/05/28 08:21:08 executed programs: 1 [ 111.616713][ T6857] ubi0: detaching mtd0 [ 111.621276][ T6857] ubi0: mtd0 is detached [ 111.625625][ T6857] ubi0: attaching mtd0 [ 111.630119][ T6857] ubi0: scanning is finished [ 111.656768][ T6857] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 111.664241][ T6857] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 111.671711][ T6857] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 111.678940][ T6857] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 111.686500][ T6857] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 111.693245][ T6857] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 111.701761][ T6857] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 2468963980 [ 111.711922][ T6857] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 111.722170][ T6861] ubi0: background thread "ubi_bgt0d" started, PID 6861 [ 111.734060][ T6863] ubi0: detaching mtd0 [ 111.742431][ T6863] ubi0: mtd0 is detached [ 111.747054][ T6863] ubi0: attaching mtd0 [ 111.751314][ T6863] ubi0: scanning is finished [ 111.806584][ T6863] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 111.814051][ T6863] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 111.821271][ T6863] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 111.828269][ T6863] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 111.835626][ T6863] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 111.842474][ T6863] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 111.850459][ T6863] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 2468963980 [ 111.860422][ T6863] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 111.871406][ T6869] ubi0: background thread "ubi_bgt0d" started, PID 6869 [ 117.309740][ T6871] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811f60f060 (size 32): comm "syz-executor.0", pid 6848, jiffies 4294947861 (age 13.840s) 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: [<000000005a7a0d96>] erase_aeb+0x25/0x110 [<0000000069d689fd>] ubi_wl_init+0x193/0x5c0 [<0000000075c8c33d>] ubi_attach+0x611/0x18ba [<00000000fd6c021f>] ubi_attach_mtd_dev+0x665/0xcc0 [<00000000e7b3f7bc>] ctrl_cdev_ioctl+0x144/0x1b0 [<0000000042d29b1b>] ksys_ioctl+0xa6/0xd0 [<000000003df6f3ef>] __x64_sys_ioctl+0x1a/0x20 [<00000000432a7d82>] do_syscall_64+0x6e/0x220 [<00000000708cf351>] entry_SYSCALL_64_after_hwframe+0x44/0xa9