[ 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 '10.128.0.33' (ECDSA) to the list of known hosts. 2020/04/16 12:20:59 parsed 1 programs syzkaller login: [ 71.384177][ T3832] kmemleak: Automatic memory scanning thread ended 2020/04/16 12:21:10 executed programs: 0 [ 78.948312][ T25] audit: type=1400 audit(1587039670.186:8): avc: denied { execmem } for pid=6625 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 78.955603][ T6626] IPVS: ftp: loaded support on port[0] = 21 [ 78.997091][ T6626] chnl_net:caif_netlink_parms(): no params data found [ 79.034297][ T6626] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.041353][ T6626] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.048898][ T6626] device bridge_slave_0 entered promiscuous mode [ 79.055988][ T6626] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.063173][ T6626] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.070510][ T6626] device bridge_slave_1 entered promiscuous mode [ 79.080508][ T6626] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 79.090489][ T6626] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 79.102936][ T6626] team0: Port device team_slave_0 added [ 79.109061][ T6626] team0: Port device team_slave_1 added [ 79.117732][ T6626] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 79.124881][ T6626] 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. [ 79.150900][ T6626] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 79.161970][ T6626] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 79.168919][ T6626] 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. [ 79.194793][ T6626] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 79.242990][ T6626] device hsr_slave_0 entered promiscuous mode [ 79.322363][ T6626] device hsr_slave_1 entered promiscuous mode [ 79.401386][ T6626] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.452935][ T6626] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.503141][ T6626] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.572950][ T6626] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.626830][ T6626] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.633883][ T6626] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.641076][ T6626] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.648155][ T6626] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.664446][ T6626] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.673141][ T6829] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.680679][ T6829] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.689024][ T6829] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.696526][ T6829] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.705291][ T6626] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.713503][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.721632][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.728721][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.737017][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.745531][ T44] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.752605][ T44] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.765419][ T6626] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 79.775801][ T6626] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.787481][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.795630][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.803987][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.811866][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.819825][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.827218][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.838521][ T6626] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.845538][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.853154][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.867868][ T6626] device veth0_vlan entered promiscuous mode [ 79.874380][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.883004][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.890801][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.898153][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.907446][ T6626] device veth1_vlan entered promiscuous mode [ 79.917831][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.925632][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.933581][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.942891][ T6626] device veth0_macvtap entered promiscuous mode [ 79.950206][ T6626] device veth1_macvtap entered promiscuous mode [ 79.959757][ T6626] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.967148][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.975585][ T44] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.984571][ T6626] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.991833][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.034595][ T6851] ubi0: attaching mtd0 [ 80.038852][ T6851] ubi0: scanning is finished [ 80.044673][ T6851] ubi0: empty MTD device detected [ 80.082960][ T6851] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 80.090656][ T6851] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 80.098302][ T6851] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 80.105566][ T6851] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 80.113137][ T6851] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 80.119933][ T6851] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 80.128222][ T6851] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 458848633 [ 80.138510][ T6851] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 80.148779][ T6855] ubi0: background thread "ubi_bgt0d" started, PID 6855 2020/04/16 12:21:17 executed programs: 1 [ 85.846754][ T6860] ubi0: detaching mtd0 [ 85.851444][ T6860] ubi0: mtd0 is detached [ 85.855791][ T6860] ubi0: attaching mtd0 [ 85.859964][ T6860] ubi0: scanning is finished [ 85.901955][ T6860] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 85.909644][ T6860] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 85.917152][ T6860] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 85.924242][ T6860] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 85.931630][ T6860] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 85.938725][ T6860] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 85.946875][ T6860] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 458848633 [ 85.956807][ T6860] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 85.966717][ T6864] ubi0: background thread "ubi_bgt0d" started, PID 6864 [ 85.979269][ T6866] ubi0: detaching mtd0 [ 85.983800][ T6866] ubi0: mtd0 is detached [ 85.988176][ T6866] ubi0: attaching mtd0 [ 85.992815][ T6866] ubi0: scanning is finished [ 86.024985][ T6866] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 86.032763][ T6866] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 86.040128][ T6866] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 86.047243][ T6866] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 86.054784][ T6866] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 86.061559][ T6866] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 86.069730][ T6866] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 458848633 [ 86.079627][ T6866] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 86.089622][ T6872] ubi0: background thread "ubi_bgt0d" started, PID 6872 [ 89.010554][ T0] NOHZ: local_softirq_pending 08 2020/04/16 12:21:23 executed programs: 3 [ 91.785863][ T6877] ubi0: detaching mtd0 [ 91.790277][ T6877] ubi0: mtd0 is detached [ 91.794640][ T6877] ubi0: attaching mtd0 [ 91.798860][ T6877] ubi0: scanning is finished [ 91.840918][ T6877] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 91.848407][ T6877] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 91.855858][ T6877] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 91.862953][ T6877] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 91.870475][ T6877] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 91.877233][ T6877] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 91.885663][ T6877] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 458848633 [ 91.895799][ T6877] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 91.905919][ T6881] ubi0: background thread "ubi_bgt0d" started, PID 6881 [ 91.918418][ T6883] ubi0: detaching mtd0 [ 91.923137][ T6883] ubi0: mtd0 is detached [ 91.927505][ T6883] ubi0: attaching mtd0 [ 91.932164][ T6883] ubi0: scanning is finished [ 91.970875][ T6883] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 91.978359][ T6883] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 91.985725][ T6883] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 91.992771][ T6883] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 92.001383][ T6883] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 92.008752][ T6883] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 92.020936][ T6883] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 458848633 [ 92.030833][ T6883] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 92.040763][ T6888] ubi0: background thread "ubi_bgt0d" started, PID 6888 [ 97.518725][ T6891] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811f577c00 (size 32): comm "syz-executor.0", pid 6851, jiffies 4294945279 (age 19.910s) 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: [<00000000e1c1f58f>] erase_aeb+0x25/0x110 [<000000007edf24c7>] ubi_wl_init+0x193/0x5c0 [<00000000ce227acc>] ubi_attach+0x611/0x18ba [<00000000ceb81d60>] ubi_attach_mtd_dev+0x665/0xcc0 [<000000000e1685d1>] ctrl_cdev_ioctl+0x144/0x1b0 [<000000005e83dfc2>] ksys_ioctl+0xa6/0xd0 [<00000000192ea1f1>] __x64_sys_ioctl+0x1a/0x20 [<000000007ba496a4>] do_syscall_64+0x6e/0x220 [<0000000074a0c217>] entry_SYSCALL_64_after_hwframe+0x44/0xa9