[ 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 '10.128.0.204' (ECDSA) to the list of known hosts. 2020/04/19 15:39:39 parsed 1 programs syzkaller login: [ 98.899421][ T3828] kmemleak: Automatic memory scanning thread ended 2020/04/19 15:39:48 executed programs: 0 [ 106.463426][ T25] audit: type=1400 audit(1587310788.853:8): avc: denied { execmem } for pid=6648 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 106.470867][ T6649] IPVS: ftp: loaded support on port[0] = 21 [ 106.509110][ T6649] chnl_net:caif_netlink_parms(): no params data found [ 106.532949][ T6649] bridge0: port 1(bridge_slave_0) entered blocking state [ 106.540086][ T6649] bridge0: port 1(bridge_slave_0) entered disabled state [ 106.547903][ T6649] device bridge_slave_0 entered promiscuous mode [ 106.555083][ T6649] bridge0: port 2(bridge_slave_1) entered blocking state [ 106.562144][ T6649] bridge0: port 2(bridge_slave_1) entered disabled state [ 106.569686][ T6649] device bridge_slave_1 entered promiscuous mode [ 106.579542][ T6649] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 106.589438][ T6649] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 106.601926][ T6649] team0: Port device team_slave_0 added [ 106.608211][ T6649] team0: Port device team_slave_1 added [ 106.617267][ T6649] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 106.624199][ T6649] 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. [ 106.650655][ T6649] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 106.661952][ T6649] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 106.669091][ T6649] 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. [ 106.695384][ T6649] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 106.766418][ T6649] device hsr_slave_0 entered promiscuous mode [ 106.804848][ T6649] device hsr_slave_1 entered promiscuous mode [ 106.862831][ T6649] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 106.925460][ T6649] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 106.965699][ T6649] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 107.035498][ T6649] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.099422][ T6649] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.106469][ T6649] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.113699][ T6649] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.120730][ T6649] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.136743][ T6649] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.145258][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 107.152664][ T16] bridge0: port 1(bridge_slave_0) entered disabled state [ 107.160954][ T16] bridge0: port 2(bridge_slave_1) entered disabled state [ 107.168460][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 107.177247][ T6649] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.185601][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 107.193959][ T370] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.201012][ T370] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.215218][ T6649] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 107.225719][ T6649] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 107.237088][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 107.245578][ T370] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.252604][ T370] bridge0: port 2(bridge_slave_1) entered forwarding state [ 107.260299][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 107.268824][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 107.276909][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 107.284874][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 107.292796][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 107.300084][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 107.311053][ T6649] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 107.318140][ T3582] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 107.325531][ T3582] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 107.336887][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 107.348758][ T6649] device veth0_vlan entered promiscuous mode [ 107.355347][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 107.364281][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 107.371855][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 107.380932][ T6649] device veth1_vlan entered promiscuous mode [ 107.392119][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 107.400062][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 107.407830][ T370] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 107.416949][ T6649] device veth0_macvtap entered promiscuous mode [ 107.424343][ T6649] device veth1_macvtap entered promiscuous mode [ 107.434001][ T6649] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 107.441315][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 107.450141][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 107.459074][ T6649] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 107.466723][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 107.509377][ T6872] ubi0: attaching mtd0 [ 107.513611][ T6872] ubi0: scanning is finished [ 107.518633][ T6872] ubi0: empty MTD device detected [ 107.545654][ T6872] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 107.553304][ T6872] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 107.564937][ T6872] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 107.571986][ T6872] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 107.579573][ T6872] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 107.586758][ T6872] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 107.594788][ T6872] ubi0: max/mean erase counter: 0/0, WL threshold: 4096, image sequence number: 2188618235 [ 107.605039][ T6872] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 107.615114][ T6876] ubi0: background thread "ubi_bgt0d" started, PID 6876 [ 107.615473][ T6872] ubi0: detaching mtd0 [ 107.626672][ T6872] ubi0: mtd0 is detached 2020/04/19 15:39:55 executed programs: 1 [ 113.354631][ T6883] ubi0: attaching mtd0 [ 113.358938][ T6883] ubi0: scanning is finished [ 113.404709][ T6883] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 113.412315][ T6883] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 113.419666][ T6883] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 113.426871][ T6883] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 113.434344][ T6883] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 113.441213][ T6883] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 113.449204][ T6883] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 2188618235 [ 113.459192][ T6883] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 113.469085][ T6884] ubi0: background thread "ubi_bgt0d" started, PID 6884 [ 113.470770][ T6883] ubi0: detaching mtd0 [ 113.480597][ T6883] ubi0: mtd0 is detached [ 113.490517][ T6889] ubi0: attaching mtd0 [ 113.495063][ T6889] ubi0: scanning is finished [ 113.534858][ T6889] ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) [ 113.542406][ T6889] ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes [ 113.550096][ T6889] ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 [ 113.557189][ T6889] ubi0: VID header offset: 64 (aligned 64), data offset: 128 [ 113.565453][ T6889] ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 [ 113.572308][ T6889] ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 [ 113.580611][ T6889] ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 2188618235 [ 113.590847][ T6889] ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 [ 113.600925][ T6893] ubi0: background thread "ubi_bgt0d" started, PID 6893 [ 113.601048][ T6889] ubi0: detaching mtd0 [ 113.612255][ T6889] ubi0: mtd0 is detached [ 114.867593][ T6897] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811fe20820 (size 32): comm "syz-executor.0", pid 6872, jiffies 4294948020 (age 14.100s) 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: [<0000000025bdc23b>] erase_aeb+0x25/0x110 [<000000005a702eaf>] ubi_wl_init+0x193/0x5c0 [<00000000aff4954b>] ubi_attach+0x611/0x18ba [<000000003a8b54a4>] ubi_attach_mtd_dev+0x665/0xcc0 [<00000000c6acfa97>] ctrl_cdev_ioctl+0x144/0x1b0 [<0000000028ac8873>] ksys_ioctl+0xa6/0xd0 [<000000007792d3b9>] __x64_sys_ioctl+0x1a/0x20 [<00000000eb816c15>] do_syscall_64+0x6e/0x220 [<0000000034e1ef94>] entry_SYSCALL_64_after_hwframe+0x44/0xa9