[ 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 '10.128.0.219' (ECDSA) to the list of known hosts. 2020/05/02 08:51:22 parsed 1 programs syzkaller login: [ 64.737604][ T3834] kmemleak: Automatic memory scanning thread ended 2020/05/02 08:51:30 executed programs: 0 [ 72.971693][ T25] audit: type=1400 audit(1588409490.405:8): avc: denied { execmem } for pid=6637 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 72.985712][ T6638] IPVS: ftp: loaded support on port[0] = 21 [ 73.023884][ T6638] chnl_net:caif_netlink_parms(): no params data found [ 73.144429][ T6638] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.151718][ T6638] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.159965][ T6638] device bridge_slave_0 entered promiscuous mode [ 73.167063][ T6638] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.174079][ T6638] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.182224][ T6638] device bridge_slave_1 entered promiscuous mode [ 73.192912][ T6638] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 73.202829][ T6638] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 73.215374][ T6638] team0: Port device team_slave_0 added [ 73.221373][ T6638] team0: Port device team_slave_1 added [ 73.230426][ T6638] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 73.237644][ T6638] 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. [ 73.264170][ T6638] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 73.275656][ T6638] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 73.282570][ T6638] 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. [ 73.309099][ T6638] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 73.345871][ T6638] device hsr_slave_0 entered promiscuous mode [ 73.405067][ T6638] device hsr_slave_1 entered promiscuous mode [ 73.466599][ T6638] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 73.536106][ T6638] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 73.585909][ T6638] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 73.625943][ T6638] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 73.680328][ T6638] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.688674][ T6638] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.695931][ T6638] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.702970][ T6638] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.720100][ T6638] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.729464][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 73.737373][ T6841] bridge0: port 1(bridge_slave_0) entered disabled state [ 73.746079][ T6841] bridge0: port 2(bridge_slave_1) entered disabled state [ 73.753336][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 73.762324][ T6638] 8021q: adding VLAN 0 to HW filter on device team0 [ 73.770737][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 73.779183][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 73.786232][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 73.800556][ T6638] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.811002][ T6638] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.822245][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 73.830627][ T6841] bridge0: port 2(bridge_slave_1) entered blocking state [ 73.837652][ T6841] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.845636][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.853682][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.861756][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.869751][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.877728][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.885081][ T6841] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.895860][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.903198][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.912497][ T6638] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.923426][ T2652] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.935338][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.943286][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.951054][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.959453][ T6638] device veth0_vlan entered promiscuous mode [ 73.967551][ T6638] device veth1_vlan entered promiscuous mode [ 73.978240][ T2652] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 73.986302][ T2652] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 73.993941][ T2652] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 74.002975][ T6638] device veth0_macvtap entered promiscuous mode [ 74.010819][ T6638] device veth1_macvtap entered promiscuous mode [ 74.020465][ T6638] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 74.027986][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 74.036879][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 74.046218][ T6638] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 74.054843][ T2652] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 74.063136][ T2652] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 74.109283][ T6862] ubi0: attaching mtd0 [ 74.113655][ T6862] ubi0: scanning is finished [ 74.119505][ T6862] ubi0: empty MTD device detected [ 74.155725][ T6862] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 74.163338][ T6862] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 74.171061][ T6862] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 74.178284][ T6862] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 74.185839][ T6862] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 74.192569][ T6862] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 74.202900][ T6862] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 2204867206 [ 74.213053][ T6862] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 74.223108][ T6866] ubi0: background thread "ubi_bgt0d" started, PID 6866 2020/05/02 08:51:37 executed programs: 1 [ 80.510865][ T6871] ubi0: detaching mtd0 [ 80.515664][ T6871] ubi0: mtd0 is detached [ 80.520048][ T6871] ubi0: attaching mtd0 [ 80.524260][ T6871] ubi0: scanning is finished [ 80.565421][ T6871] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 80.572932][ T6871] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.580391][ T6871] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.587529][ T6871] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 80.595039][ T6871] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 80.601766][ T6871] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 80.609740][ T6871] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 2204867206 [ 80.619715][ T6871] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 80.629970][ T6874] ubi0: background thread "ubi_bgt0d" started, PID 6874 [ 80.642910][ T6877] ubi0: detaching mtd0 [ 80.647854][ T6877] ubi0: mtd0 is detached [ 80.652331][ T6877] ubi0: attaching mtd0 [ 80.657354][ T6877] ubi0: scanning is finished [ 80.686178][ T6877] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 80.694705][ T6877] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.701885][ T6877] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.709233][ T6877] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 80.716783][ T6877] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 80.723511][ T6877] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 80.731925][ T6877] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 2204867206 [ 80.742135][ T6877] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 80.752195][ T6882] ubi0: background thread "ubi_bgt0d" started, PID 6882 [ 83.284828][ T0] NOHZ: local_softirq_pending 08 [ 86.854262][ T6884] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811f719e40 (size 32): comm "syz-executor.0", pid 6862, jiffies 4294944683 (age 15.530s) 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: [<00000000741b53cb>] erase_aeb+0x25/0x110 [<0000000009a3e475>] ubi_wl_init+0x193/0x5c0 [<00000000bb46b2e1>] ubi_attach+0x611/0x18ba [<0000000069c1ea96>] ubi_attach_mtd_dev+0x665/0xcc0 [<00000000659c15e6>] ctrl_cdev_ioctl+0x144/0x1b0 [<000000000b418b69>] ksys_ioctl+0xa6/0xd0 [<0000000015f0c621>] __x64_sys_ioctl+0x1a/0x20 [<00000000258c0db5>] do_syscall_64+0x6e/0x220 [<000000007aea52be>] entry_SYSCALL_64_after_hwframe+0x44/0xa9