Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. 2020/03/21 09:12:16 parsed 1 programs 2020/03/21 09:12:18 executed programs: 0 syzkaller login: [ 78.485847][ T9361] IPVS: ftp: loaded support on port[0] = 21 [ 78.541177][ T9361] chnl_net:caif_netlink_parms(): no params data found [ 78.591567][ T9361] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.598894][ T9361] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.607823][ T9361] device bridge_slave_0 entered promiscuous mode [ 78.616329][ T9361] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.623736][ T9361] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.631432][ T9361] device bridge_slave_1 entered promiscuous mode [ 78.649084][ T9361] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.660215][ T9361] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.680588][ T9361] team0: Port device team_slave_0 added [ 78.688202][ T9361] team0: Port device team_slave_1 added [ 78.702320][ T9361] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 78.709363][ T9361] 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. [ 78.735309][ T9361] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 78.747666][ T9361] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 78.754667][ T9361] 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. [ 78.780680][ T9361] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 78.845001][ T9361] device hsr_slave_0 entered promiscuous mode [ 78.883187][ T9361] device hsr_slave_1 entered promiscuous mode [ 78.985308][ T9361] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 79.015787][ T9361] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 79.066135][ T9361] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 79.135501][ T9361] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 79.187331][ T9361] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.194500][ T9361] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.202027][ T9361] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.209126][ T9361] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.251213][ T9361] 8021q: adding VLAN 0 to HW filter on device bond0 [ 79.265479][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 79.275688][ T2693] bridge0: port 1(bridge_slave_0) entered disabled state [ 79.294451][ T2693] bridge0: port 2(bridge_slave_1) entered disabled state [ 79.302384][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 79.315361][ T9361] 8021q: adding VLAN 0 to HW filter on device team0 [ 79.325851][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 79.334823][ T2685] bridge0: port 1(bridge_slave_0) entered blocking state [ 79.341874][ T2685] bridge0: port 1(bridge_slave_0) entered forwarding state [ 79.363515][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 79.371870][ T2693] bridge0: port 2(bridge_slave_1) entered blocking state [ 79.378966][ T2693] bridge0: port 2(bridge_slave_1) entered forwarding state [ 79.387443][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 79.396388][ T2693] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 79.411460][ T9361] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 79.422685][ T9361] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 79.436606][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 79.444928][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 79.454663][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 79.473320][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 79.480743][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 79.488258][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 79.499369][ T9361] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.519417][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 79.537701][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 79.545883][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 79.555357][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 79.563936][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 79.575146][ T9361] device veth0_vlan entered promiscuous mode [ 79.586007][ T9361] device veth1_vlan entered promiscuous mode [ 79.605968][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 79.614660][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 79.622801][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 79.631853][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 79.642007][ T9361] device veth0_macvtap entered promiscuous mode [ 79.652553][ T9361] device veth1_macvtap entered promiscuous mode [ 79.668522][ T9361] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 79.677312][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 79.685655][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 79.694396][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 79.702789][ T2679] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 79.714444][ T9361] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 79.721723][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 79.731104][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 80.357950][ T9426] ================================================================== [ 80.366214][ T9426] BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 [ 80.373395][ T9426] Read of size 8 at addr ffff8880a75951e0 by task syz-executor.0/9426 [ 80.381553][ T9426] [ 80.383870][ T9426] CPU: 1 PID: 9426 Comm: syz-executor.0 Not tainted 5.6.0-rc6-syzkaller #0 [ 80.392434][ T9426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.402477][ T9426] Call Trace: [ 80.405773][ T9426] dump_stack+0x188/0x20d [ 80.410146][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.415004][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.419846][ T9426] print_address_description.constprop.0.cold+0xd3/0x315 [ 80.426858][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.431693][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.436539][ T9426] __kasan_report.cold+0x1a/0x32 [ 80.441475][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.446320][ T9426] kasan_report+0xe/0x20 [ 80.450545][ T9426] __list_add_valid+0x93/0xa0 [ 80.455214][ T9426] rdma_listen+0x681/0x910 [ 80.459615][ T9426] ucma_listen+0x14d/0x1c0 [ 80.464024][ T9426] ? ucma_notify+0x190/0x190 [ 80.468609][ T9426] ? __might_fault+0x190/0x1d0 [ 80.473401][ T9426] ? _copy_from_user+0x123/0x190 [ 80.478329][ T9426] ? ucma_notify+0x190/0x190 [ 80.482918][ T9426] ucma_write+0x285/0x350 [ 80.487244][ T9426] ? ucma_open+0x270/0x270 [ 80.491655][ T9426] ? security_file_permission+0x8a/0x370 [ 80.497279][ T9426] ? ucma_open+0x270/0x270 [ 80.501677][ T9426] __vfs_write+0x76/0x100 [ 80.505990][ T9426] vfs_write+0x262/0x5c0 [ 80.510222][ T9426] ksys_write+0x1e8/0x250 [ 80.514556][ T9426] ? __ia32_sys_read+0xb0/0xb0 [ 80.519316][ T9426] ? __x64_sys_clock_gettime32+0x240/0x240 [ 80.525104][ T9426] ? trace_hardirqs_off_caller+0x55/0x230 [ 80.530807][ T9426] do_fast_syscall_32+0x270/0xe8f [ 80.535818][ T9426] entry_SYSENTER_compat+0x70/0x7f [ 80.540915][ T9426] [ 80.543223][ T9426] Allocated by task 9420: [ 80.547535][ T9426] save_stack+0x1b/0x80 [ 80.551665][ T9426] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 80.557314][ T9426] kmem_cache_alloc_trace+0x153/0x7d0 [ 80.562661][ T9426] __rdma_create_id+0x5b/0x850 [ 80.567443][ T9426] ucma_create_id+0x1cb/0x580 [ 80.572110][ T9426] ucma_write+0x285/0x350 [ 80.576454][ T9426] __vfs_write+0x76/0x100 [ 80.580758][ T9426] vfs_write+0x262/0x5c0 [ 80.584976][ T9426] ksys_write+0x1e8/0x250 [ 80.589283][ T9426] do_fast_syscall_32+0x270/0xe8f [ 80.594298][ T9426] entry_SYSENTER_compat+0x70/0x7f [ 80.599395][ T9426] [ 80.601752][ T9426] Freed by task 9420: [ 80.605717][ T9426] save_stack+0x1b/0x80 [ 80.609850][ T9426] __kasan_slab_free+0xf7/0x140 [ 80.614706][ T9426] kfree+0x109/0x2b0 [ 80.618583][ T9426] ucma_close+0x10b/0x300 [ 80.622896][ T9426] __fput+0x2da/0x850 [ 80.626868][ T9426] task_work_run+0x13f/0x1b0 [ 80.631435][ T9426] exit_to_usermode_loop+0x2fa/0x360 [ 80.636697][ T9426] do_fast_syscall_32+0xbef/0xe8f [ 80.641717][ T9426] entry_SYSENTER_compat+0x70/0x7f [ 80.646796][ T9426] [ 80.649102][ T9426] The buggy address belongs to the object at ffff8880a7595000 [ 80.649102][ T9426] which belongs to the cache kmalloc-2k of size 2048 [ 80.663128][ T9426] The buggy address is located 480 bytes inside of [ 80.663128][ T9426] 2048-byte region [ffff8880a7595000, ffff8880a7595800) [ 80.676459][ T9426] The buggy address belongs to the page: [ 80.682069][ T9426] page:ffffea00029d6540 refcount:1 mapcount:0 mapping:ffff8880aa000e00 index:0x0 [ 80.691147][ T9426] flags: 0xfffe0000000200(slab) [ 80.695980][ T9426] raw: 00fffe0000000200 ffffea0002341608 ffffea00025e8fc8 ffff8880aa000e00 [ 80.704540][ T9426] raw: 0000000000000000 ffff8880a7595000 0000000100000001 0000000000000000 [ 80.713221][ T9426] page dumped because: kasan: bad access detected [ 80.719642][ T9426] [ 80.721949][ T9426] Memory state around the buggy address: [ 80.727595][ T9426] ffff8880a7595080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 80.735633][ T9426] ffff8880a7595100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 80.743675][ T9426] >ffff8880a7595180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 80.751722][ T9426] ^ [ 80.758898][ T9426] ffff8880a7595200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 80.766936][ T9426] ffff8880a7595280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 80.775013][ T9426] ================================================================== [ 80.783082][ T9426] Disabling lock debugging due to kernel taint [ 80.795089][ T9426] Kernel panic - not syncing: panic_on_warn set ... [ 80.801801][ T9426] CPU: 1 PID: 9426 Comm: syz-executor.0 Tainted: G B 5.6.0-rc6-syzkaller #0 [ 80.811758][ T9426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.821814][ T9426] Call Trace: [ 80.825087][ T9426] dump_stack+0x188/0x20d [ 80.829392][ T9426] panic+0x2e3/0x75c [ 80.833271][ T9426] ? add_taint.cold+0x16/0x16 [ 80.837951][ T9426] ? preempt_schedule_common+0x5e/0xc0 [ 80.843393][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.848225][ T9426] ? ___preempt_schedule+0x16/0x18 [ 80.853336][ T9426] ? trace_hardirqs_on+0x55/0x220 [ 80.858387][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.863214][ T9426] end_report+0x43/0x49 [ 80.867349][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.872213][ T9426] __kasan_report.cold+0xd/0x32 [ 80.877042][ T9426] ? __list_add_valid+0x93/0xa0 [ 80.881869][ T9426] kasan_report+0xe/0x20 [ 80.886089][ T9426] __list_add_valid+0x93/0xa0 [ 80.890746][ T9426] rdma_listen+0x681/0x910 [ 80.895169][ T9426] ucma_listen+0x14d/0x1c0 [ 80.899563][ T9426] ? ucma_notify+0x190/0x190 [ 80.904137][ T9426] ? __might_fault+0x190/0x1d0 [ 80.908881][ T9426] ? _copy_from_user+0x123/0x190 [ 80.913806][ T9426] ? ucma_notify+0x190/0x190 [ 80.918387][ T9426] ucma_write+0x285/0x350 [ 80.922710][ T9426] ? ucma_open+0x270/0x270 [ 80.927115][ T9426] ? security_file_permission+0x8a/0x370 [ 80.932725][ T9426] ? ucma_open+0x270/0x270 [ 80.937116][ T9426] __vfs_write+0x76/0x100 [ 80.941425][ T9426] vfs_write+0x262/0x5c0 [ 80.945649][ T9426] ksys_write+0x1e8/0x250 [ 80.949962][ T9426] ? __ia32_sys_read+0xb0/0xb0 [ 80.954708][ T9426] ? __x64_sys_clock_gettime32+0x240/0x240 [ 80.960539][ T9426] ? trace_hardirqs_off_caller+0x55/0x230 [ 80.966258][ T9426] do_fast_syscall_32+0x270/0xe8f [ 80.971261][ T9426] entry_SYSENTER_compat+0x70/0x7f [ 80.977592][ T9426] Kernel Offset: disabled [ 80.981911][ T9426] Rebooting in 86400 seconds..