[ 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 '10.128.0.66' (ECDSA) to the list of known hosts. 2020/04/21 08:10:28 parsed 1 programs syzkaller login: [ 72.279059][ T3829] kmemleak: Automatic memory scanning thread ended 2020/04/21 08:10:38 executed programs: 0 [ 79.891229][ T25] audit: type=1400 audit(1587456638.361:8): avc: denied { execmem } for pid=6633 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 79.915133][ T6634] IPVS: ftp: loaded support on port[0] = 21 [ 79.943103][ T6634] chnl_net:caif_netlink_parms(): no params data found [ 79.995484][ T6634] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.002539][ T6634] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.010052][ T6634] device bridge_slave_0 entered promiscuous mode [ 80.017047][ T6634] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.024277][ T6634] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.031525][ T6634] device bridge_slave_1 entered promiscuous mode [ 80.041441][ T6634] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 80.051090][ T6634] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 80.063034][ T6634] team0: Port device team_slave_0 added [ 80.069173][ T6634] team0: Port device team_slave_1 added [ 80.078843][ T6634] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 80.085881][ T6634] 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. [ 80.111970][ T6634] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 80.123110][ T6634] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 80.130043][ T6634] 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. [ 80.156518][ T6634] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 80.204697][ T6634] device hsr_slave_0 entered promiscuous mode [ 80.284111][ T6634] device hsr_slave_1 entered promiscuous mode [ 80.342988][ T6634] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 80.374769][ T6634] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 80.434669][ T6634] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 80.504649][ T6634] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 80.588570][ T6634] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.595672][ T6634] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.602917][ T6634] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.610024][ T6634] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.626161][ T6634] 8021q: adding VLAN 0 to HW filter on device bond0 [ 80.634563][ T6837] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 80.641989][ T6837] bridge0: port 1(bridge_slave_0) entered disabled state [ 80.650207][ T6837] bridge0: port 2(bridge_slave_1) entered disabled state [ 80.657712][ T6837] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 80.666339][ T6634] 8021q: adding VLAN 0 to HW filter on device team0 [ 80.674352][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 80.682423][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 80.689440][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 80.697855][ T2742] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 80.706256][ T2742] bridge0: port 2(bridge_slave_1) entered blocking state [ 80.713259][ T2742] bridge0: port 2(bridge_slave_1) entered forwarding state [ 80.726586][ T6634] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 80.736980][ T6634] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 80.748335][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 80.756513][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 80.764613][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 80.772464][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 80.780524][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 80.787824][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 80.798742][ T6634] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 80.805780][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 80.813063][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 80.824163][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 80.835547][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 80.843640][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 80.851622][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 80.859912][ T6634] device veth0_vlan entered promiscuous mode [ 80.867683][ T6634] device veth1_vlan entered promiscuous mode [ 80.877859][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 80.885516][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 80.893108][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 80.902448][ T6634] device veth0_macvtap entered promiscuous mode [ 80.910045][ T6634] device veth1_macvtap entered promiscuous mode [ 80.919675][ T6634] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 80.927036][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 80.935748][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 80.944628][ T6634] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 80.954120][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 80.962247][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 81.000769][ T6858] ubi0: attaching mtd0 [ 81.005878][ T6858] ubi0: scanning is finished [ 81.010518][ T6858] ubi0: empty MTD device detected [ 81.054678][ T6858] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 81.062184][ T6858] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 81.069771][ T6858] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 81.076847][ T6858] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 81.084394][ T6858] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 81.091133][ T6858] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 81.099339][ T6858] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 3878216703 [ 81.109530][ T6858] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 81.119736][ T6861] ubi0: background thread "ubi_bgt0d" started, PID 6861 2020/04/21 08:10:45 executed programs: 1 [ 86.850894][ T6867] ubi0: detaching mtd0 [ 86.855415][ T6867] ubi0: mtd0 is detached [ 86.859756][ T6867] ubi0: attaching mtd0 [ 86.863985][ T6867] ubi0: scanning is finished [ 86.924438][ T6867] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 86.931919][ T6867] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 86.939205][ T6867] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 86.946145][ T6867] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 86.953603][ T6867] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 86.960371][ T6867] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 86.968362][ T6867] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3878216703 [ 86.978345][ T6867] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 86.988225][ T6872] ubi0: background thread "ubi_bgt0d" started, PID 6872 [ 87.000322][ T6873] ubi0: detaching mtd0 [ 87.004886][ T6873] ubi0: mtd0 is detached [ 87.009236][ T6873] ubi0: attaching mtd0 [ 87.013761][ T6873] ubi0: scanning is finished [ 87.043382][ T6873] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 87.050901][ T6873] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 87.058414][ T6873] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 87.065456][ T6873] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 87.072827][ T6873] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 87.079566][ T6873] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 87.087543][ T6873] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3878216703 [ 87.097624][ T6873] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 87.107540][ T6879] ubi0: background thread "ubi_bgt0d" started, PID 6879 [ 90.292380][ T0] NOHZ: local_softirq_pending 08 [ 92.665872][ T6881] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811f0b5920 (size 32): comm "syz-executor.0", pid 6858, jiffies 4294945376 (age 14.130s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 c0 cf 85 83 ff ff ff ff ................ 07 01 00 00 00 00 00 00 01 00 00 00 02 00 00 00 ................ backtrace: [<00000000c546716c>] erase_aeb+0x25/0x110 [<00000000d8969ec5>] ubi_wl_init+0x193/0x5c0 [<000000006ee571ff>] ubi_attach+0x611/0x18ba [<00000000333de2d0>] ubi_attach_mtd_dev+0x665/0xcc0 [<00000000d48efa84>] ctrl_cdev_ioctl+0x144/0x1b0 [<00000000f2ed66e3>] ksys_ioctl+0xa6/0xd0 [<000000004b4d7f2d>] __x64_sys_ioctl+0x1a/0x20 [<00000000ac75db60>] do_syscall_64+0x6e/0x220 [<00000000d4997c5d>] entry_SYSCALL_64_after_hwframe+0x44/0xa9