[ 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 '10.128.10.48' (ECDSA) to the list of known hosts. 2020/04/08 05:51:39 parsed 1 programs syzkaller login: [ 87.640139][ T3826] kmemleak: Automatic memory scanning thread ended 2020/04/08 05:51:49 executed programs: 0 [ 95.460288][ T26] audit: type=1400 audit(1586325109.671:8): avc: denied { execmem } for pid=6615 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 95.478447][ T6616] IPVS: ftp: loaded support on port[0] = 21 [ 95.510622][ T6616] chnl_net:caif_netlink_parms(): no params data found [ 95.631905][ T6616] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.639063][ T6616] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.646757][ T6616] device bridge_slave_0 entered promiscuous mode [ 95.653661][ T6616] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.661254][ T6616] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.668792][ T6616] device bridge_slave_1 entered promiscuous mode [ 95.679005][ T6616] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.689105][ T6616] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.702069][ T6616] team0: Port device team_slave_0 added [ 95.708852][ T6616] team0: Port device team_slave_1 added [ 95.718141][ T6616] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.725187][ T6616] 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. [ 95.751654][ T6616] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.763028][ T6616] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.770228][ T6616] 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. [ 95.796903][ T6616] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.826187][ T6616] device hsr_slave_0 entered promiscuous mode [ 95.855272][ T6616] device hsr_slave_1 entered promiscuous mode [ 95.918244][ T6616] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 95.955992][ T6616] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 95.976092][ T6616] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.045980][ T6616] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.119980][ T6616] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.127055][ T6616] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.134247][ T6616] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.141706][ T6616] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.158001][ T6616] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.167898][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 96.175782][ T6819] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.183034][ T6819] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.191899][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 96.201260][ T6616] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.209923][ T3576] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 96.218342][ T3576] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.225435][ T3576] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.240093][ T6616] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 96.250601][ T6616] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 96.261588][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 96.270193][ T6819] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.277386][ T6819] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.285456][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 96.293519][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 96.301634][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 96.309632][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 96.317677][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 96.325036][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 96.336516][ T6616] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.345013][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 96.352353][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 96.363068][ T3576] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 96.374806][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 96.383530][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 96.391597][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 96.400038][ T6616] device veth0_vlan entered promiscuous mode [ 96.408250][ T6616] device veth1_vlan entered promiscuous mode [ 96.419386][ T3576] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 96.428189][ T3576] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 96.436518][ T3576] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 96.446173][ T6616] device veth0_macvtap entered promiscuous mode [ 96.453787][ T6616] device veth1_macvtap entered promiscuous mode [ 96.464017][ T6616] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.471338][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 96.479940][ T6819] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 96.489312][ T6616] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.496812][ T3576] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 96.547834][ T6840] ubi0: attaching mtd0 [ 96.552118][ T6840] ubi0: scanning is finished [ 96.557809][ T6840] ubi0: empty MTD device detected [ 96.615846][ T6840] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 96.625061][ T6840] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 96.632249][ T6840] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 96.639741][ T6840] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 96.647335][ T6840] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 96.654619][ T6840] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 96.663164][ T6840] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 1951786714 [ 96.673425][ T6840] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 96.685476][ T6844] ubi0: background thread "ubi_bgt0d" started, PID 6844 2020/04/08 05:51:57 executed programs: 1 [ 102.788253][ T6849] ubi0: detaching mtd0 [ 102.792863][ T6849] ubi0: mtd0 is detached [ 102.797276][ T6849] ubi0: attaching mtd0 [ 102.801582][ T6849] ubi0: scanning is finished [ 102.865010][ T6849] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 102.872560][ T6849] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 102.879986][ T6849] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 102.886956][ T6849] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 102.894371][ T6849] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 102.901200][ T6849] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 102.909179][ T6849] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1951786714 [ 102.919445][ T6849] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 102.929346][ T6853] ubi0: background thread "ubi_bgt0d" started, PID 6853 [ 102.941771][ T6855] ubi0: detaching mtd0 [ 102.946556][ T6855] ubi0: mtd0 is detached [ 102.950935][ T6855] ubi0: attaching mtd0 [ 102.955547][ T6855] ubi0: scanning is finished [ 102.984812][ T6855] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 102.992434][ T6855] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 103.000496][ T6855] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 103.007658][ T6855] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 103.015418][ T6855] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 103.022185][ T6855] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 103.030870][ T6855] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1951786714 [ 103.041441][ T6855] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 103.051970][ T6861] ubi0: background thread "ubi_bgt0d" started, PID 6861 2020/04/08 05:52:03 executed programs: 3 [ 108.955233][ T6866] ubi0: detaching mtd0 [ 108.959882][ T6866] ubi0: mtd0 is detached [ 108.964741][ T6866] ubi0: attaching mtd0 [ 108.969098][ T6866] ubi0: scanning is finished [ 109.004446][ T6866] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 109.011930][ T6866] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 109.019616][ T6866] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 109.026766][ T6866] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 109.034338][ T6866] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 109.041088][ T6866] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 109.049938][ T6866] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1951786714 [ 109.061217][ T6866] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 109.071314][ T6870] ubi0: background thread "ubi_bgt0d" started, PID 6870 [ 109.082485][ T6872] ubi0: detaching mtd0 [ 109.087126][ T6872] ubi0: mtd0 is detached [ 109.091495][ T6872] ubi0: attaching mtd0 [ 109.096120][ T6872] ubi0: scanning is finished [ 109.144472][ T6872] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 109.151967][ T6872] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 109.159583][ T6872] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 109.166704][ T6872] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 109.174208][ T6872] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 109.180958][ T6872] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 109.189222][ T6872] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 1951786714 [ 109.199368][ T6872] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 109.209488][ T6877] ubi0: background thread "ubi_bgt0d" started, PID 6877 [ 114.875167][ T6880] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888127d74660 (size 32): comm "syz-executor.0", pid 6840, jiffies 4294946914 (age 20.850s) hex dump (first 32 bytes): 00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de ........"....... 00 10 00 00 00 00 00 00 01 00 00 00 02 00 00 00 ................ backtrace: [<00000000616c7fd6>] erase_aeb+0x25/0x110 [<00000000626d80c0>] ubi_wl_init+0x193/0x5c0 [<00000000780bac5f>] ubi_attach+0x611/0x18ba [<000000005aca7efe>] ubi_attach_mtd_dev+0x665/0xcc0 [<000000003113a075>] ctrl_cdev_ioctl+0x144/0x1b0 [<000000008be5c739>] ksys_ioctl+0xa6/0xd0 [<000000007d58bb81>] __x64_sys_ioctl+0x1a/0x20 [<000000005899354d>] do_syscall_64+0x6e/0x220 [<00000000c5f943f5>] entry_SYSCALL_64_after_hwframe+0x44/0xa9