[ 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 '10.128.0.80' (ECDSA) to the list of known hosts. 2020/04/09 00:43:21 parsed 1 programs syzkaller login: [ 80.590512][ T3828] kmemleak: Automatic memory scanning thread ended 2020/04/09 00:43:31 executed programs: 0 [ 88.497657][ T26] audit: type=1400 audit(1586393011.588:8): avc: denied { execmem } for pid=6622 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 88.518392][ T6623] IPVS: ftp: loaded support on port[0] = 21 [ 88.546749][ T6623] chnl_net:caif_netlink_parms(): no params data found [ 88.582920][ T6623] bridge0: port 1(bridge_slave_0) entered blocking state [ 88.590228][ T6623] bridge0: port 1(bridge_slave_0) entered disabled state [ 88.597594][ T6623] device bridge_slave_0 entered promiscuous mode [ 88.604780][ T6623] bridge0: port 2(bridge_slave_1) entered blocking state [ 88.611942][ T6623] bridge0: port 2(bridge_slave_1) entered disabled state [ 88.619266][ T6623] device bridge_slave_1 entered promiscuous mode [ 88.629883][ T6623] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 88.639765][ T6623] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 88.652336][ T6623] team0: Port device team_slave_0 added [ 88.658573][ T6623] team0: Port device team_slave_1 added [ 88.667464][ T6623] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 88.674485][ T6623] 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. [ 88.700345][ T6623] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 88.711346][ T6623] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 88.718276][ T6623] 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. [ 88.744422][ T6623] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 88.770616][ T6623] device hsr_slave_0 entered promiscuous mode [ 88.829708][ T6623] device hsr_slave_1 entered promiscuous mode [ 88.904195][ T6623] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 88.960494][ T6623] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 89.010404][ T6623] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 89.050291][ T6623] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 89.104766][ T6623] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.112080][ T6623] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.119458][ T6623] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.126478][ T6623] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.143343][ T6623] 8021q: adding VLAN 0 to HW filter on device bond0 [ 89.151796][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 89.159760][ T3579] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.167172][ T3579] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.175864][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 89.185109][ T6623] 8021q: adding VLAN 0 to HW filter on device team0 [ 89.193900][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 89.202450][ T45] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.209515][ T45] bridge0: port 1(bridge_slave_0) entered forwarding state [ 89.224340][ T6623] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 89.235126][ T6623] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 89.246182][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 89.254947][ T3579] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.262464][ T3579] bridge0: port 2(bridge_slave_1) entered forwarding state [ 89.270466][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 89.281856][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 89.289985][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 89.297964][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 89.305950][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 89.313433][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 89.324912][ T6623] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 89.332658][ T6826] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 89.340168][ T6826] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 89.351341][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 89.363811][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 89.372577][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 89.380300][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 89.389099][ T6623] device veth0_vlan entered promiscuous mode [ 89.397096][ T6623] device veth1_vlan entered promiscuous mode [ 89.407971][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 89.416817][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 89.424920][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 89.434652][ T6623] device veth0_macvtap entered promiscuous mode [ 89.443394][ T6623] device veth1_macvtap entered promiscuous mode [ 89.453970][ T6623] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 89.462550][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 89.471964][ T45] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 89.481373][ T6623] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 89.489585][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 89.533740][ T6847] ubi0: attaching mtd0 [ 89.538289][ T6847] ubi0: scanning is finished [ 89.544554][ T6847] ubi0: empty MTD device detected [ 89.572233][ T6847] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 89.580193][ T6847] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 89.588297][ T6847] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 89.598563][ T6847] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 89.606997][ T6847] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 89.615105][ T6847] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 89.623820][ T6847] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 1753252593 [ 89.633808][ T6847] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 89.644093][ T6850] ubi0: background thread "ubi_bgt0d" started, PID 6850 2020/04/09 00:43:38 executed programs: 1 [ 95.819972][ T6856] ubi0: detaching mtd0 [ 95.824687][ T6856] ubi0: mtd0 is detached [ 95.829163][ T6856] ubi0: attaching mtd0 [ 95.833349][ T6856] ubi0: scanning is finished [ 95.899231][ T6856] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 95.907332][ T6856] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 95.915367][ T6856] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 95.923483][ T6856] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 95.931168][ T6856] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 95.939410][ T6856] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 95.947453][ T6856] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1753252593 [ 95.958036][ T6856] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 95.968312][ T6860] ubi0: background thread "ubi_bgt0d" started, PID 6860 [ 95.981447][ T6862] ubi0: detaching mtd0 [ 95.986319][ T6862] ubi0: mtd0 is detached [ 95.991250][ T6862] ubi0: attaching mtd0 [ 95.995601][ T6862] ubi0: scanning is finished [ 96.029366][ T6862] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 96.039136][ T6862] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 96.046651][ T6862] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 96.055155][ T6862] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 96.063050][ T6862] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 96.070187][ T6862] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 96.078180][ T6862] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1753252593 [ 96.088168][ T6862] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 96.098362][ T6868] ubi0: background thread "ubi_bgt0d" started, PID 6868 [ 98.738010][ T0] NOHZ: local_softirq_pending 08 [ 102.065304][ T6869] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888127c754e0 (size 32): comm "syz-executor.0", pid 6847, jiffies 4294946217 (age 15.280s) 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: [<000000001a0d8b98>] erase_aeb+0x25/0x110 [<0000000053804ba5>] ubi_wl_init+0x193/0x5c0 [<00000000e98ab87d>] ubi_attach+0x611/0x18ba [<000000001f31cfbb>] ubi_attach_mtd_dev+0x665/0xcc0 [<00000000baa71ebf>] ctrl_cdev_ioctl+0x144/0x1b0 [<000000003c659213>] ksys_ioctl+0xa6/0xd0 [<000000003b448183>] __x64_sys_ioctl+0x1a/0x20 [<000000009793f06f>] do_syscall_64+0x6e/0x220 [<000000004ce50087>] entry_SYSCALL_64_after_hwframe+0x44/0xa9