Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. 2020/03/08 15:01:27 parsed 1 programs 2020/03/08 15:01:28 executed programs: 0 syzkaller login: [ 1025.151451][ T9808] IPVS: ftp: loaded support on port[0] = 21 [ 1025.215876][ T9808] chnl_net:caif_netlink_parms(): no params data found [ 1025.258416][ T9808] bridge0: port 1(bridge_slave_0) entered blocking state [ 1025.266040][ T9808] bridge0: port 1(bridge_slave_0) entered disabled state [ 1025.274576][ T9808] device bridge_slave_0 entered promiscuous mode [ 1025.284554][ T9808] bridge0: port 2(bridge_slave_1) entered blocking state [ 1025.291730][ T9808] bridge0: port 2(bridge_slave_1) entered disabled state [ 1025.299739][ T9808] device bridge_slave_1 entered promiscuous mode [ 1025.317992][ T9808] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1025.329122][ T9808] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1025.350128][ T9808] team0: Port device team_slave_0 added [ 1025.358130][ T9808] team0: Port device team_slave_1 added [ 1025.374186][ T9808] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1025.381208][ T9808] 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. [ 1025.407326][ T9808] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1025.420138][ T9808] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1025.427269][ T9808] 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. [ 1025.453343][ T9808] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1025.508917][ T9808] device hsr_slave_0 entered promiscuous mode [ 1025.546669][ T9808] device hsr_slave_1 entered promiscuous mode [ 1025.656221][ T9808] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1025.709683][ T9808] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1025.769341][ T9808] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1025.828906][ T9808] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1025.883790][ T9808] bridge0: port 2(bridge_slave_1) entered blocking state [ 1025.891072][ T9808] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1025.899093][ T9808] bridge0: port 1(bridge_slave_0) entered blocking state [ 1025.906247][ T9808] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1025.953224][ T9808] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1025.967680][ T3089] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1025.989842][ T3089] bridge0: port 1(bridge_slave_0) entered disabled state [ 1025.998974][ T3089] bridge0: port 2(bridge_slave_1) entered disabled state [ 1026.008393][ T3089] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1026.021516][ T9808] 8021q: adding VLAN 0 to HW filter on device team0 [ 1026.033832][ T3089] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1026.042459][ T3089] bridge0: port 1(bridge_slave_0) entered blocking state [ 1026.049583][ T3089] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1026.062508][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1026.071254][ T9815] bridge0: port 2(bridge_slave_1) entered blocking state [ 1026.078385][ T9815] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1026.098725][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1026.117286][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1026.126075][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1026.135482][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1026.143786][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1026.155391][ T9808] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1026.174607][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1026.182210][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1026.195867][ T9808] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1026.215528][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 1026.226047][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1026.246986][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 1026.255780][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1026.270601][ T9808] device veth0_vlan entered promiscuous mode [ 1026.278175][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1026.286980][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1026.300943][ T9808] device veth1_vlan entered promiscuous mode [ 1026.324245][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1026.333183][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1026.341618][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 1026.350814][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1026.362324][ T9808] device veth0_macvtap entered promiscuous mode [ 1026.373005][ T9808] device veth1_macvtap entered promiscuous mode [ 1026.390943][ T9808] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1026.399021][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1026.407675][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 1026.415748][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1026.426743][ T9815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1026.440394][ T9808] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1026.448879][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1026.457736][ T9816] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1027.409299][ T9928] ================================================================== [ 1027.417690][ T9928] BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 [ 1027.425012][ T9928] Read of size 8 at addr ffff88809f2df1e0 by task syz-executor.0/9928 [ 1027.433242][ T9928] [ 1027.435592][ T9928] CPU: 1 PID: 9928 Comm: syz-executor.0 Not tainted 5.6.0-rc4-syzkaller #0 [ 1027.444179][ T9928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1027.454236][ T9928] Call Trace: [ 1027.457753][ T9928] dump_stack+0x188/0x20d [ 1027.462095][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.467025][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.471966][ T9928] print_address_description.constprop.0.cold+0xd3/0x315 [ 1027.478991][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.483836][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.488690][ T9928] __kasan_report.cold+0x1a/0x32 [ 1027.493641][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.498487][ T9928] kasan_report+0xe/0x20 [ 1027.502738][ T9928] __list_add_valid+0x93/0xa0 [ 1027.507465][ T9928] rdma_listen+0x681/0x910 [ 1027.511935][ T9928] ucma_listen+0x14d/0x1c0 [ 1027.516410][ T9928] ? ucma_notify+0x190/0x190 [ 1027.521057][ T9928] ? __might_fault+0x190/0x1d0 [ 1027.525901][ T9928] ? _copy_from_user+0x123/0x190 [ 1027.530841][ T9928] ? ucma_notify+0x190/0x190 [ 1027.535485][ T9928] ucma_write+0x285/0x350 [ 1027.539812][ T9928] ? ucma_open+0x270/0x270 [ 1027.544275][ T9928] ? security_file_permission+0x8a/0x370 [ 1027.549936][ T9928] ? ucma_open+0x270/0x270 [ 1027.554413][ T9928] __vfs_write+0x76/0x100 [ 1027.558742][ T9928] vfs_write+0x262/0x5c0 [ 1027.562978][ T9928] ksys_write+0x1e8/0x250 [ 1027.567292][ T9928] ? __ia32_sys_read+0xb0/0xb0 [ 1027.572074][ T9928] ? __ia32_sys_clock_settime+0x260/0x260 [ 1027.577908][ T9928] ? trace_hardirqs_off_caller+0x55/0x230 [ 1027.583641][ T9928] do_syscall_64+0xf6/0x7d0 [ 1027.588209][ T9928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1027.594111][ T9928] RIP: 0033:0x45c4a9 [ 1027.598030][ T9928] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1027.617728][ T9928] RSP: 002b:00007fd096109c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1027.626177][ T9928] RAX: ffffffffffffffda RBX: 00007fd09610a6d4 RCX: 000000000045c4a9 [ 1027.634179][ T9928] RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 [ 1027.642252][ T9928] RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 [ 1027.650311][ T9928] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 1027.658283][ T9928] R13: 0000000000000cbe R14: 00000000004cea80 R15: 000000000076bf2c [ 1027.666296][ T9928] [ 1027.668635][ T9928] Allocated by task 9923: [ 1027.672980][ T9928] save_stack+0x1b/0x80 [ 1027.677117][ T9928] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 1027.682748][ T9928] kmem_cache_alloc_trace+0x153/0x7d0 [ 1027.688218][ T9928] __rdma_create_id+0x5b/0x850 [ 1027.692968][ T9928] ucma_create_id+0x1cb/0x580 [ 1027.697643][ T9928] ucma_write+0x285/0x350 [ 1027.701976][ T9928] __vfs_write+0x76/0x100 [ 1027.706289][ T9928] vfs_write+0x262/0x5c0 [ 1027.710514][ T9928] ksys_write+0x1e8/0x250 [ 1027.714829][ T9928] do_syscall_64+0xf6/0x7d0 [ 1027.719323][ T9928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1027.725194][ T9928] [ 1027.727501][ T9928] Freed by task 9922: [ 1027.731483][ T9928] save_stack+0x1b/0x80 [ 1027.735646][ T9928] __kasan_slab_free+0xf7/0x140 [ 1027.740483][ T9928] kfree+0x109/0x2b0 [ 1027.744815][ T9928] ucma_close+0x10b/0x300 [ 1027.749253][ T9928] __fput+0x2da/0x850 [ 1027.753301][ T9928] task_work_run+0x13f/0x1b0 [ 1027.757899][ T9928] exit_to_usermode_loop+0x2fa/0x360 [ 1027.763199][ T9928] do_syscall_64+0x6b1/0x7d0 [ 1027.767797][ T9928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1027.773783][ T9928] [ 1027.776144][ T9928] The buggy address belongs to the object at ffff88809f2df000 [ 1027.776144][ T9928] which belongs to the cache kmalloc-2k of size 2048 [ 1027.790210][ T9928] The buggy address is located 480 bytes inside of [ 1027.790210][ T9928] 2048-byte region [ffff88809f2df000, ffff88809f2df800) [ 1027.803595][ T9928] The buggy address belongs to the page: [ 1027.809366][ T9928] page:ffffea00027cb7c0 refcount:1 mapcount:0 mapping:ffff8880aa000e00 index:0x0 [ 1027.818663][ T9928] flags: 0xfffe0000000200(slab) [ 1027.823527][ T9928] raw: 00fffe0000000200 ffffea0002506b08 ffffea00029f1808 ffff8880aa000e00 [ 1027.832247][ T9928] raw: 0000000000000000 ffff88809f2df000 0000000100000001 0000000000000000 [ 1027.840832][ T9928] page dumped because: kasan: bad access detected [ 1027.847265][ T9928] [ 1027.849591][ T9928] Memory state around the buggy address: [ 1027.855238][ T9928] ffff88809f2df080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1027.863336][ T9928] ffff88809f2df100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1027.872107][ T9928] >ffff88809f2df180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1027.880193][ T9928] ^ [ 1027.887612][ T9928] ffff88809f2df200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1027.895697][ T9928] ffff88809f2df280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1027.903868][ T9928] ================================================================== [ 1027.911939][ T9928] Disabling lock debugging due to kernel taint [ 1027.925112][ T9928] Kernel panic - not syncing: panic_on_warn set ... [ 1027.931731][ T9928] CPU: 0 PID: 9928 Comm: syz-executor.0 Tainted: G B 5.6.0-rc4-syzkaller #0 [ 1027.941714][ T9928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1027.951849][ T9928] Call Trace: [ 1027.955144][ T9928] dump_stack+0x188/0x20d [ 1027.959572][ T9928] panic+0x2e3/0x75c [ 1027.963498][ T9928] ? add_taint.cold+0x16/0x16 [ 1027.968219][ T9928] ? preempt_schedule_common+0x5e/0xc0 [ 1027.973794][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.981641][ T9928] ? ___preempt_schedule+0x16/0x18 [ 1027.986749][ T9928] ? trace_hardirqs_on+0x55/0x220 [ 1027.991782][ T9928] ? __list_add_valid+0x93/0xa0 [ 1027.996650][ T9928] end_report+0x43/0x49 [ 1028.000807][ T9928] ? __list_add_valid+0x93/0xa0 [ 1028.005861][ T9928] __kasan_report.cold+0xd/0x32 [ 1028.010731][ T9928] ? __list_add_valid+0x93/0xa0 [ 1028.015574][ T9928] kasan_report+0xe/0x20 [ 1028.019810][ T9928] __list_add_valid+0x93/0xa0 [ 1028.024486][ T9928] rdma_listen+0x681/0x910 [ 1028.029048][ T9928] ucma_listen+0x14d/0x1c0 [ 1028.033459][ T9928] ? ucma_notify+0x190/0x190 [ 1028.038048][ T9928] ? __might_fault+0x190/0x1d0 [ 1028.042855][ T9928] ? _copy_from_user+0x123/0x190 [ 1028.048017][ T9928] ? ucma_notify+0x190/0x190 [ 1028.052621][ T9928] ucma_write+0x285/0x350 [ 1028.057308][ T9928] ? ucma_open+0x270/0x270 [ 1028.061729][ T9928] ? security_file_permission+0x8a/0x370 [ 1028.067396][ T9928] ? ucma_open+0x270/0x270 [ 1028.071815][ T9928] __vfs_write+0x76/0x100 [ 1028.076152][ T9928] vfs_write+0x262/0x5c0 [ 1028.080398][ T9928] ksys_write+0x1e8/0x250 [ 1028.084817][ T9928] ? __ia32_sys_read+0xb0/0xb0 [ 1028.089596][ T9928] ? __ia32_sys_clock_settime+0x260/0x260 [ 1028.095312][ T9928] ? trace_hardirqs_off_caller+0x55/0x230 [ 1028.101098][ T9928] do_syscall_64+0xf6/0x7d0 [ 1028.105805][ T9928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1028.111696][ T9928] RIP: 0033:0x45c4a9 [ 1028.115593][ T9928] Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1028.135212][ T9928] RSP: 002b:00007fd096109c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1028.143738][ T9928] RAX: ffffffffffffffda RBX: 00007fd09610a6d4 RCX: 000000000045c4a9 [ 1028.152227][ T9928] RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 [ 1028.160202][ T9928] RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000 [ 1028.168305][ T9928] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 1028.176281][ T9928] R13: 0000000000000cbe R14: 00000000004cea80 R15: 000000000076bf2c [ 1028.185516][ T9928] Kernel Offset: disabled [ 1028.189894][ T9928] Rebooting in 86400 seconds..