Warning: Permanently added '10.128.0.201' (ECDSA) to the list of known hosts. [ 55.679572] kauditd_printk_skb: 3 callbacks suppressed [ 55.679586] audit: type=1400 audit(1585178725.024:36): avc: denied { map } for pid=7987 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2020/03/25 23:25:25 parsed 1 programs [ 56.880507] audit: type=1400 audit(1585178726.224:37): avc: denied { map } for pid=7987 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=16796 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2020/03/25 23:25:26 executed programs: 0 [ 57.098791] IPVS: ftp: loaded support on port[0] = 21 [ 57.171676] chnl_net:caif_netlink_parms(): no params data found [ 57.247698] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.255831] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.266075] device bridge_slave_0 entered promiscuous mode [ 57.280119] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.291679] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.303591] device bridge_slave_1 entered promiscuous mode [ 57.328716] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 57.344299] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 57.371741] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 57.387283] team0: Port device team_slave_0 added [ 57.394430] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 57.402050] team0: Port device team_slave_1 added [ 57.417568] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 57.424323] 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. [ 57.451399] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 57.465169] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 57.473429] 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. [ 57.502518] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 57.514831] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 57.522956] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 57.583066] device hsr_slave_0 entered promiscuous mode [ 57.621354] device hsr_slave_1 entered promiscuous mode [ 57.681862] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 57.689491] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 57.746650] audit: type=1400 audit(1585178727.094:38): avc: denied { create } for pid=8004 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 57.770155] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.772816] audit: type=1400 audit(1585178727.094:39): avc: denied { write } for pid=8004 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 57.778366] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.805592] audit: type=1400 audit(1585178727.104:40): avc: denied { read } for pid=8004 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 57.812320] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.846325] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.887250] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 57.894304] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.903434] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 57.913431] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.932757] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.940310] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.948348] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 57.961199] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 57.967989] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.978089] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.986662] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.993190] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.009488] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.018593] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.025173] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.049308] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 58.059936] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 58.071364] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 58.081005] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.089859] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.098072] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 58.106004] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 58.113844] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.121026] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.134801] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 58.143432] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 58.150219] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 58.163843] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 58.177807] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 58.188030] IPv6: ADDRCONF(NETDEV_UP): veth1_virt_wifi: link is not ready [ 58.198770] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 58.210234] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 58.249099] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 58.256813] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 58.264081] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 58.280643] IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready [ 58.288994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 58.300326] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 58.309454] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 58.316659] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 58.325129] device veth0_vlan entered promiscuous mode [ 58.335916] device veth1_vlan entered promiscuous mode [ 58.342813] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 58.353616] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 58.368034] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 58.378130] IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready [ 58.385728] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.393535] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.403902] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.411957] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.421894] device veth0_macvtap entered promiscuous mode [ 58.428427] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 58.438001] device veth1_macvtap entered promiscuous mode [ 58.445255] IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready [ 58.455405] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 58.465909] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 58.475826] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready [ 58.483447] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.492062] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.499715] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.507699] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.515781] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.526251] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 58.533772] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 58.546757] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 58.555005] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 58.664763] audit: type=1400 audit(1585178728.014:41): avc: denied { associate } for pid=8004 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 58.912026] ================================================================== [ 58.919910] BUG: KASAN: use-after-free in __list_add_valid+0x93/0xa0 [ 58.926520] Read of size 8 at addr ffff88808d71a220 by task syz-executor.0/8080 [ 58.933952] [ 58.935578] CPU: 1 PID: 8080 Comm: syz-executor.0 Not tainted 4.19.113-syzkaller #0 [ 58.943373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.953449] Call Trace: [ 58.956043] dump_stack+0x188/0x20d [ 58.959669] ? __list_add_valid+0x93/0xa0 [ 58.963945] print_address_description.cold+0x7c/0x212 [ 58.969352] ? __list_add_valid+0x93/0xa0 [ 58.973507] kasan_report.cold+0x88/0x2b9 [ 58.977712] __list_add_valid+0x93/0xa0 [ 58.981703] rdma_listen+0x609/0x880 [ 58.985422] ucma_listen+0x14d/0x1c0 [ 58.989135] ? ucma_notify+0x190/0x190 [ 58.993038] ? __might_fault+0x192/0x1d0 [ 58.997108] ? _copy_from_user+0xd2/0x140 [ 59.001275] ? ucma_notify+0x190/0x190 [ 59.005150] ucma_write+0x285/0x350 [ 59.008780] ? ucma_open+0x280/0x280 [ 59.012482] ? __fget+0x319/0x510 [ 59.015928] __vfs_write+0xf7/0x760 [ 59.019548] ? ucma_open+0x280/0x280 [ 59.023279] ? kernel_read+0x110/0x110 [ 59.027177] ? __inode_security_revalidate+0xd3/0x120 [ 59.032374] ? avc_policy_seqno+0x9/0x70 [ 59.036448] ? selinux_file_permission+0x87/0x520 [ 59.041385] ? security_file_permission+0x84/0x220 [ 59.046344] vfs_write+0x206/0x550 [ 59.049890] ksys_write+0x12b/0x2a0 [ 59.053513] ? __ia32_sys_read+0xb0/0xb0 [ 59.057571] ? __ia32_sys_clock_settime+0x260/0x260 [ 59.062581] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 59.067328] ? trace_hardirqs_off_caller+0x55/0x210 [ 59.072341] ? do_syscall_64+0x21/0x620 [ 59.076323] do_syscall_64+0xf9/0x620 [ 59.080122] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.085315] RIP: 0033:0x45c849 [ 59.088501] 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 [ 59.107834] RSP: 002b:00007ff4d4ed1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 59.115545] RAX: ffffffffffffffda RBX: 00007ff4d4ed26d4 RCX: 000000000045c849 [ 59.122906] RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 [ 59.130364] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 59.137637] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 59.144918] R13: 0000000000000cc0 R14: 00000000004cee4e R15: 000000000076bf0c [ 59.152265] [ 59.153903] Allocated by task 8073: [ 59.157528] kasan_kmalloc+0xbf/0xe0 [ 59.161231] kmem_cache_alloc_trace+0x14d/0x7a0 [ 59.165976] __rdma_create_id+0x5b/0x630 [ 59.170052] ucma_create_id+0x1cb/0x5a0 [ 59.174157] ucma_write+0x285/0x350 [ 59.177770] __vfs_write+0xf7/0x760 [ 59.181407] vfs_write+0x206/0x550 [ 59.184940] ksys_write+0x12b/0x2a0 [ 59.188565] do_syscall_64+0xf9/0x620 [ 59.192378] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.197558] [ 59.199170] Freed by task 8073: [ 59.202443] __kasan_slab_free+0xf7/0x140 [ 59.206576] kfree+0xce/0x220 [ 59.209664] ucma_close+0x10b/0x320 [ 59.213298] __fput+0x2cd/0x890 [ 59.216573] task_work_run+0x13f/0x1b0 [ 59.220456] exit_to_usermode_loop+0x25a/0x2b0 [ 59.225032] do_syscall_64+0x538/0x620 [ 59.235505] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.240735] [ 59.242370] The buggy address belongs to the object at ffff88808d71a040 [ 59.242370] which belongs to the cache kmalloc-2048 of size 2048 [ 59.256529] The buggy address is located 480 bytes inside of [ 59.256529] 2048-byte region [ffff88808d71a040, ffff88808d71a840) [ 59.269439] The buggy address belongs to the page: [ 59.274748] page:ffffea000235c680 count:1 mapcount:0 mapping:ffff88812c3dcc40 index:0x0 compound_mapcount: 0 [ 59.285071] flags: 0xfffe0000008100(slab|head) [ 59.289687] raw: 00fffe0000008100 ffffea0002a3ee08 ffffea000231e088 ffff88812c3dcc40 [ 59.297777] raw: 0000000000000000 ffff88808d71a040 0000000100000003 0000000000000000 [ 59.306438] page dumped because: kasan: bad access detected [ 59.312595] [ 59.314477] Memory state around the buggy address: [ 59.319457] ffff88808d71a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.327043] ffff88808d71a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.334701] >ffff88808d71a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.342195] ^ [ 59.347648] ffff88808d71a280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.355505] ffff88808d71a300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 59.362990] ================================================================== [ 59.370372] Disabling lock debugging due to kernel taint [ 59.381391] Kernel panic - not syncing: panic_on_warn set ... [ 59.381391] [ 59.391818] CPU: 0 PID: 8080 Comm: syz-executor.0 Tainted: G B 4.19.113-syzkaller #0 [ 59.401903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.411360] Call Trace: [ 59.414080] dump_stack+0x188/0x20d [ 59.418408] panic+0x26a/0x50e [ 59.421627] ? __warn_printk+0xf3/0xf3 [ 59.425700] ? preempt_schedule_common+0x4a/0xc0 [ 59.430472] ? __list_add_valid+0x93/0xa0 [ 59.434773] ? ___preempt_schedule+0x16/0x18 [ 59.439266] ? trace_hardirqs_on+0x55/0x210 [ 59.443676] ? __list_add_valid+0x93/0xa0 [ 59.448257] kasan_end_report+0x43/0x49 [ 59.452711] kasan_report.cold+0xa4/0x2b9 [ 59.459269] __list_add_valid+0x93/0xa0 [ 59.465114] rdma_listen+0x609/0x880 [ 59.469826] ucma_listen+0x14d/0x1c0 [ 59.473677] ? ucma_notify+0x190/0x190 [ 59.478640] ? __might_fault+0x192/0x1d0 [ 59.485473] ? _copy_from_user+0xd2/0x140 [ 59.489937] ? ucma_notify+0x190/0x190 [ 59.493938] ucma_write+0x285/0x350 [ 59.499038] ? ucma_open+0x280/0x280 [ 59.503105] ? __fget+0x319/0x510 [ 59.507430] __vfs_write+0xf7/0x760 [ 59.511545] ? ucma_open+0x280/0x280 [ 59.515521] ? kernel_read+0x110/0x110 [ 59.519543] ? __inode_security_revalidate+0xd3/0x120 [ 59.524751] ? avc_policy_seqno+0x9/0x70 [ 59.528850] ? selinux_file_permission+0x87/0x520 [ 59.533715] ? security_file_permission+0x84/0x220 [ 59.539673] vfs_write+0x206/0x550 [ 59.543300] ksys_write+0x12b/0x2a0 [ 59.547845] ? __ia32_sys_read+0xb0/0xb0 [ 59.551898] ? __ia32_sys_clock_settime+0x260/0x260 [ 59.556936] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 59.565328] ? trace_hardirqs_off_caller+0x55/0x210 [ 59.570881] ? do_syscall_64+0x21/0x620 [ 59.574925] do_syscall_64+0xf9/0x620 [ 59.579013] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 59.584207] RIP: 0033:0x45c849 [ 59.587540] 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 [ 59.606867] RSP: 002b:00007ff4d4ed1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 59.615265] RAX: ffffffffffffffda RBX: 00007ff4d4ed26d4 RCX: 000000000045c849 [ 59.622761] RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 [ 59.630134] RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 [ 59.637399] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 59.644925] R13: 0000000000000cc0 R14: 00000000004cee4e R15: 000000000076bf0c [ 59.654499] Kernel Offset: disabled [ 59.658151] Rebooting in 86400 seconds..