Warning: Permanently added '10.128.0.162' (ECDSA) to the list of known hosts. 2020/05/22 22:31:09 parsed 1 programs 2020/05/22 22:31:09 executed programs: 0 syzkaller login: [ 60.471062][ T6819] IPVS: ftp: loaded support on port[0] = 21 [ 60.575252][ T6819] chnl_net:caif_netlink_parms(): no params data found [ 60.632177][ T6819] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.639988][ T6819] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.647831][ T6819] device bridge_slave_0 entered promiscuous mode [ 60.658083][ T6819] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.665658][ T6819] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.674188][ T6819] device bridge_slave_1 entered promiscuous mode [ 60.695918][ T6819] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.707371][ T6819] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.732190][ T6819] team0: Port device team_slave_0 added [ 60.739985][ T6819] team0: Port device team_slave_1 added [ 60.758175][ T6819] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 60.765218][ T6819] 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. [ 60.791273][ T6819] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 60.803768][ T6819] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 60.810882][ T6819] 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. [ 60.836935][ T6819] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 60.913601][ T6819] device hsr_slave_0 entered promiscuous mode [ 60.970033][ T6819] device hsr_slave_1 entered promiscuous mode [ 61.117230][ T6819] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 61.162956][ T6819] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 61.222655][ T6819] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 61.282569][ T6819] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 61.358026][ T6819] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.365302][ T6819] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.373346][ T6819] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.380507][ T6819] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.427208][ T6819] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.442413][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.453136][ T2490] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.461896][ T2490] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.471528][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 61.485376][ T6819] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.497561][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 61.506864][ T2490] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.514026][ T2490] bridge0: port 1(bridge_slave_0) entered forwarding state [ 61.526707][ T2562] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 61.535952][ T2562] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.543081][ T2562] bridge0: port 2(bridge_slave_1) entered forwarding state [ 61.559333][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 61.567962][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 61.581124][ T2562] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 61.590671][ T2562] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 61.601683][ T2562] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 61.617948][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 61.627426][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 61.644724][ T6819] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 61.655985][ T6819] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 61.668714][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 61.678279][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 61.687690][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 61.697060][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 61.719604][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 61.727392][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 61.735378][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 61.745706][ T6819] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 61.766380][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 61.776748][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 61.800943][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 61.810036][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 61.820154][ T6819] device veth0_vlan entered promiscuous mode [ 61.831245][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 61.838999][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 61.850518][ T6819] device veth1_vlan entered promiscuous mode [ 61.873896][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 61.882550][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 61.891498][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 61.900743][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 61.911989][ T6819] device veth0_macvtap entered promiscuous mode [ 61.924144][ T6819] device veth1_macvtap entered promiscuous mode [ 61.943192][ T6819] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 61.951899][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 61.961108][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 61.969936][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 61.978521][ T2490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 61.993166][ T6819] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 62.001082][ T2562] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 62.011659][ T2562] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 62.212075][ T7033] ubi0: attaching mtd0 [ 62.218331][ T7033] ubi0: scanning is finished [ 62.224528][ T7033] ubi0: empty MTD device detected [ 62.295705][ T7033] ubi0 error: ubi_attach_mtd_dev: cannot spawn "ubi_bgt0d", error -4 [ 62.311087][ T7033] ================================================================== [ 62.319468][ T7033] BUG: KASAN: use-after-free in uif_close+0x15e/0x190 [ 62.326239][ T7033] Read of size 4 at addr ffff888097fe49e8 by task syz-executor.0/7033 [ 62.334381][ T7033] [ 62.336735][ T7033] CPU: 0 PID: 7033 Comm: syz-executor.0 Not tainted 5.7.0-rc6-next-20200522-syzkaller #0 [ 62.346511][ T7033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.356560][ T7033] Call Trace: [ 62.359836][ T7033] dump_stack+0x18f/0x20d [ 62.364151][ T7033] ? uif_close+0x15e/0x190 [ 62.368563][ T7033] ? uif_close+0x15e/0x190 [ 62.374889][ T7033] print_address_description.constprop.0.cold+0xd3/0x413 [ 62.381907][ T7033] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 62.387892][ T7033] ? vprintk_func+0x97/0x1a6 [ 62.392482][ T7033] ? uif_close+0x15e/0x190 [ 62.396884][ T7033] kasan_report.cold+0x1f/0x37 [ 62.401630][ T7033] ? uif_close+0x15e/0x190 [ 62.406046][ T7033] uif_close+0x15e/0x190 [ 62.410283][ T7033] ubi_attach_mtd_dev+0x157e/0x27c0 [ 62.415474][ T7033] ? ubi_free_internal_volumes+0x50/0x50 [ 62.421090][ T7033] ? __get_mtd_device+0x210/0x210 [ 62.426098][ T7033] ? __might_fault+0x190/0x1d0 [ 62.430893][ T7033] ctrl_cdev_ioctl+0x229/0x2b0 [ 62.435649][ T7033] ? vol_cdev_llseek+0x160/0x160 [ 62.440589][ T7033] ? vol_cdev_llseek+0x160/0x160 [ 62.445509][ T7033] ksys_ioctl+0x11a/0x180 [ 62.449838][ T7033] __x64_sys_ioctl+0x6f/0xb0 [ 62.454416][ T7033] do_syscall_64+0xf6/0x7d0 [ 62.458951][ T7033] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.464869][ T7033] RIP: 0033:0x45ca29 [ 62.468744][ T7033] Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 62.488337][ T7033] RSP: 002b:00007fd94dd97c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 62.496905][ T7033] RAX: ffffffffffffffda RBX: 00000000004e1080 RCX: 000000000045ca29 [ 62.504883][ T7033] RDX: 0000000000742508 RSI: 0000000040186f40 RDI: 0000000000000003 [ 62.512860][ T7033] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 62.520816][ T7033] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 62.528780][ T7033] R13: 0000000000000209 R14: 00000000004c44c1 R15: 00007fd94dd986d4 [ 62.536919][ T7033] [ 62.539258][ T7033] Allocated by task 7033: [ 62.543581][ T7033] save_stack+0x1b/0x40 [ 62.547728][ T7033] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 62.553525][ T7033] kmem_cache_alloc_trace+0x153/0x7d0 [ 62.558886][ T7033] ubi_attach_mtd_dev+0x2e7/0x27c0 [ 62.564007][ T7033] ctrl_cdev_ioctl+0x229/0x2b0 [ 62.568776][ T7033] ksys_ioctl+0x11a/0x180 [ 62.573111][ T7033] __x64_sys_ioctl+0x6f/0xb0 [ 62.577714][ T7033] do_syscall_64+0xf6/0x7d0 [ 62.582221][ T7033] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.588089][ T7033] [ 62.590398][ T7033] Freed by task 7033: [ 62.594363][ T7033] save_stack+0x1b/0x40 [ 62.598497][ T7033] __kasan_slab_free+0xf7/0x140 [ 62.603350][ T7033] kfree+0x109/0x2b0 [ 62.607227][ T7033] device_release+0x71/0x200 [ 62.611891][ T7033] kobject_put+0x1c8/0x2f0 [ 62.616479][ T7033] cdev_device_del+0x69/0x80 [ 62.621108][ T7033] uif_close+0xea/0x190 [ 62.625246][ T7033] ubi_attach_mtd_dev+0x157e/0x27c0 [ 62.630439][ T7033] ctrl_cdev_ioctl+0x229/0x2b0 [ 62.635182][ T7033] ksys_ioctl+0x11a/0x180 [ 62.639492][ T7033] __x64_sys_ioctl+0x6f/0xb0 [ 62.644064][ T7033] do_syscall_64+0xf6/0x7d0 [ 62.648549][ T7033] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.654441][ T7033] [ 62.656775][ T7033] The buggy address belongs to the object at ffff888097fe4000 [ 62.656775][ T7033] which belongs to the cache kmalloc-8k of size 8192 [ 62.670808][ T7033] The buggy address is located 2536 bytes inside of [ 62.670808][ T7033] 8192-byte region [ffff888097fe4000, ffff888097fe6000) [ 62.684227][ T7033] The buggy address belongs to the page: [ 62.689848][ T7033] page:ffffea00025ff900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea00025ff900 order:2 compound_mapcount:0 compound_pincount:0 [ 62.705012][ T7033] flags: 0xfffe0000010200(slab|head) [ 62.710284][ T7033] raw: 00fffe0000010200 ffffea000267f108 ffffea0002460708 ffff8880aa0021c0 [ 62.718868][ T7033] raw: 0000000000000000 ffff888097fe4000 0000000100000001 0000000000000000 [ 62.727427][ T7033] page dumped because: kasan: bad access detected [ 62.733829][ T7033] [ 62.736132][ T7033] Memory state around the buggy address: [ 62.741743][ T7033] ffff888097fe4880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.749804][ T7033] ffff888097fe4900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.757865][ T7033] >ffff888097fe4980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.765901][ T7033] ^ [ 62.773340][ T7033] ffff888097fe4a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.781391][ T7033] ffff888097fe4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.789433][ T7033] ================================================================== [ 62.797470][ T7033] Disabling lock debugging due to kernel taint [ 62.814254][ T7033] Kernel panic - not syncing: panic_on_warn set ... [ 62.820969][ T7033] CPU: 0 PID: 7033 Comm: syz-executor.0 Tainted: G B 5.7.0-rc6-next-20200522-syzkaller #0 [ 62.832154][ T7033] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.842204][ T7033] Call Trace: [ 62.845479][ T7033] dump_stack+0x18f/0x20d [ 62.849789][ T7033] ? uif_close+0x110/0x190 [ 62.854205][ T7033] panic+0x2e3/0x75c [ 62.858093][ T7033] ? __warn_printk+0xf3/0xf3 [ 62.862681][ T7033] ? preempt_schedule_common+0x5e/0xc0 [ 62.868122][ T7033] ? uif_close+0x15e/0x190 [ 62.872531][ T7033] ? uif_close+0x15e/0x190 [ 62.876940][ T7033] ? preempt_schedule_thunk+0x16/0x18 [ 62.882306][ T7033] ? trace_hardirqs_on+0x55/0x230 [ 62.887326][ T7033] ? uif_close+0x15e/0x190 [ 62.891721][ T7033] ? uif_close+0x15e/0x190 [ 62.896116][ T7033] end_report+0x4d/0x53 [ 62.900269][ T7033] kasan_report.cold+0xd/0x37 [ 62.904932][ T7033] ? uif_close+0x15e/0x190 [ 62.909325][ T7033] uif_close+0x15e/0x190 [ 62.913569][ T7033] ubi_attach_mtd_dev+0x157e/0x27c0 [ 62.918766][ T7033] ? ubi_free_internal_volumes+0x50/0x50 [ 62.924397][ T7033] ? __get_mtd_device+0x210/0x210 [ 62.929404][ T7033] ? __might_fault+0x190/0x1d0 [ 62.934152][ T7033] ctrl_cdev_ioctl+0x229/0x2b0 [ 62.938899][ T7033] ? vol_cdev_llseek+0x160/0x160 [ 62.943816][ T7033] ? vol_cdev_llseek+0x160/0x160 [ 62.948733][ T7033] ksys_ioctl+0x11a/0x180 [ 62.953043][ T7033] __x64_sys_ioctl+0x6f/0xb0 [ 62.957617][ T7033] do_syscall_64+0xf6/0x7d0 [ 62.962127][ T7033] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 62.968019][ T7033] RIP: 0033:0x45ca29 [ 62.971891][ T7033] Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 62.991472][ T7033] RSP: 002b:00007fd94dd97c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 62.999875][ T7033] RAX: ffffffffffffffda RBX: 00000000004e1080 RCX: 000000000045ca29 [ 63.007823][ T7033] RDX: 0000000000742508 RSI: 0000000040186f40 RDI: 0000000000000003 [ 63.015772][ T7033] RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 [ 63.023720][ T7033] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 63.031674][ T7033] R13: 0000000000000209 R14: 00000000004c44c1 R15: 00007fd94dd986d4 [ 63.040911][ T7033] Kernel Offset: disabled [ 63.045234][ T7033] Rebooting in 86400 seconds..