Warning: Permanently added '10.128.0.104' (ECDSA) to the list of known hosts. 2020/09/03 16:49:32 parsed 1 programs 2020/09/03 16:49:32 executed programs: 0 [ 149.388043] audit: type=1400 audit(1599151772.412:8): avc: denied { execmem } for pid=6494 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 150.500991] IPVS: ftp: loaded support on port[0] = 21 [ 150.620819] chnl_net:caif_netlink_parms(): no params data found [ 150.715369] bridge0: port 1(bridge_slave_0) entered blocking state [ 150.722111] bridge0: port 1(bridge_slave_0) entered disabled state [ 150.730492] device bridge_slave_0 entered promiscuous mode [ 150.738274] bridge0: port 2(bridge_slave_1) entered blocking state [ 150.745195] bridge0: port 2(bridge_slave_1) entered disabled state [ 150.752359] device bridge_slave_1 entered promiscuous mode [ 150.771108] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 150.780166] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 150.800144] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 150.807701] team0: Port device team_slave_0 added [ 150.813729] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 150.821063] team0: Port device team_slave_1 added [ 150.837513] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 150.843941] 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. [ 150.869379] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 150.880984] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 150.888043] 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. [ 150.913587] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 150.924421] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 150.931850] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 150.952562] device hsr_slave_0 entered promiscuous mode [ 150.958421] device hsr_slave_1 entered promiscuous mode [ 150.964857] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 150.972844] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 151.040990] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.047616] bridge0: port 2(bridge_slave_1) entered forwarding state [ 151.054728] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.061241] bridge0: port 1(bridge_slave_0) entered forwarding state [ 151.097294] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 151.104072] 8021q: adding VLAN 0 to HW filter on device bond0 [ 151.113691] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 151.122169] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 151.132640] bridge0: port 1(bridge_slave_0) entered disabled state [ 151.139975] bridge0: port 2(bridge_slave_1) entered disabled state [ 151.147628] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 151.158799] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 151.165086] 8021q: adding VLAN 0 to HW filter on device team0 [ 151.174909] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 151.183424] bridge0: port 1(bridge_slave_0) entered blocking state [ 151.189830] bridge0: port 1(bridge_slave_0) entered forwarding state [ 151.214165] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 151.221888] bridge0: port 2(bridge_slave_1) entered blocking state [ 151.228488] bridge0: port 2(bridge_slave_1) entered forwarding state [ 151.236875] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 151.245780] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 151.253689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 151.261110] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 151.269258] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 151.277503] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 151.283845] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 151.297299] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 151.305625] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 151.312317] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 151.324776] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 151.337680] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 151.347563] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 151.385477] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 151.392957] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 151.399639] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 151.410630] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 151.418510] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 151.426315] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 151.436607] device veth0_vlan entered promiscuous mode [ 151.445972] device veth1_vlan entered promiscuous mode [ 151.451808] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 151.461846] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 151.474642] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 151.485150] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 151.492602] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 151.500170] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 151.510785] device veth0_macvtap entered promiscuous mode [ 151.517596] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 151.526629] device veth1_macvtap entered promiscuous mode [ 151.537676] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 151.547157] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 151.558044] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 151.565600] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 151.574705] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 151.585638] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 151.593832] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 152.523716] Bluetooth: hci0: command 0x0409 tx timeout 2020/09/03 16:49:37 executed programs: 117 [ 154.602947] Bluetooth: hci0: command 0x041b tx timeout [ 155.835167] ================================================================== [ 155.842732] BUG: KASAN: use-after-free in __sock_release+0x25b/0x2a0 [ 155.849235] Write of size 8 at addr ffff888080002aa8 by task syz-executor.0/7490 [ 155.856760] [ 155.858397] CPU: 1 PID: 7490 Comm: syz-executor.0 Not tainted 4.19.143-syzkaller #0 [ 155.866182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 155.875542] Call Trace: [ 155.878131] dump_stack+0x1fc/0x2fe [ 155.881753] print_address_description.cold+0x54/0x219 [ 155.887055] kasan_report_error.cold+0x8a/0x1c7 [ 155.891736] ? __sock_release+0x25b/0x2a0 [ 155.895885] __asan_report_store8_noabort+0x88/0x90 [ 155.901055] ? __sock_release+0x25b/0x2a0 [ 155.905220] __sock_release+0x25b/0x2a0 [ 155.909200] ? __sock_release+0x2a0/0x2a0 [ 155.913337] sock_close+0x15/0x20 [ 155.916803] __fput+0x2ce/0x890 [ 155.920072] task_work_run+0x148/0x1c0 [ 155.923951] exit_to_usermode_loop+0x251/0x2a0 [ 155.928632] do_syscall_64+0x538/0x620 [ 155.932515] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 155.937696] RIP: 0033:0x45d5b9 [ 155.940886] Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 155.959890] RSP: 002b:00007f380b916c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 155.967611] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 155.974882] RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000007 [ 155.982161] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 155.989417] R10: 0000000020c7f000 R11: 0000000000000246 R12: 000000000118cf4c [ 155.996689] R13: 00007ffd9ad5c88f R14: 00007f380b9179c0 R15: 000000000118cf4c [ 156.003967] [ 156.005608] Allocated by task 7490: [ 156.009235] kmem_cache_alloc+0x122/0x370 [ 156.013373] sock_alloc_inode+0x19/0x250 [ 156.017417] alloc_inode+0x5d/0x180 [ 156.021041] new_inode_pseudo+0x14/0xe0 [ 156.025030] sock_alloc+0x3c/0x260 [ 156.028563] __sock_create+0xba/0x740 [ 156.032473] __sys_socket+0xef/0x200 [ 156.037280] __x64_sys_socket+0x6f/0xb0 [ 156.041426] do_syscall_64+0xf9/0x620 [ 156.045224] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 156.050427] [ 156.052037] Freed by task 7489: [ 156.055308] kmem_cache_free+0x7f/0x260 [ 156.059285] destroy_inode+0xb9/0x110 [ 156.063090] iput+0x4f1/0x860 [ 156.066180] dentry_unlink_inode+0x265/0x320 [ 156.070573] __dentry_kill+0x3c0/0x640 [ 156.074446] dentry_kill+0xc4/0x510 [ 156.078056] dput+0x55f/0x640 [ 156.081143] __fput+0x415/0x890 [ 156.084427] task_work_run+0x148/0x1c0 [ 156.088299] exit_to_usermode_loop+0x251/0x2a0 [ 156.092889] do_syscall_64+0x538/0x620 [ 156.096790] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 156.101977] [ 156.103604] The buggy address belongs to the object at ffff888080002a80 [ 156.103604] which belongs to the cache sock_inode_cache of size 992 [ 156.117389] The buggy address is located 40 bytes inside of [ 156.117389] 992-byte region [ffff888080002a80, ffff888080002e60) [ 156.129220] The buggy address belongs to the page: [ 156.134174] page:ffffea0002000080 count:1 mapcount:0 mapping:ffff88821b6c3000 index:0xffff888080002ffd [ 156.143632] flags: 0xfffe0000000100(slab) [ 156.148591] raw: 00fffe0000000100 ffffea00020bf708 ffffea00020000c8 ffff88821b6c3000 [ 156.156480] raw: ffff888080002ffd ffff888080002180 0000000100000003 0000000000000000 [ 156.164350] page dumped because: kasan: bad access detected [ 156.170044] [ 156.171666] Memory state around the buggy address: [ 156.176629] ffff888080002980: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 156.183976] ffff888080002a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 156.191323] >ffff888080002a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 156.198672] ^ [ 156.204231] ffff888080002b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 156.211594] ffff888080002b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 156.218942] ================================================================== [ 156.226303] Disabling lock debugging due to kernel taint [ 156.237134] Kernel panic - not syncing: panic_on_warn set ... [ 156.237134] [ 156.244536] CPU: 0 PID: 7490 Comm: syz-executor.0 Tainted: G B 4.19.143-syzkaller #0 [ 156.253742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 156.263104] Call Trace: [ 156.265818] dump_stack+0x1fc/0x2fe [ 156.269437] panic+0x26a/0x50e [ 156.272676] ? __warn_printk+0xf3/0xf3 [ 156.276827] ? preempt_schedule_common+0x45/0xc0 [ 156.281571] ? ___preempt_schedule+0x16/0x18 [ 156.285985] ? trace_hardirqs_on+0x55/0x210 [ 156.290295] kasan_end_report+0x43/0x49 [ 156.294271] kasan_report_error.cold+0xa7/0x1c7 [ 156.298927] ? __sock_release+0x25b/0x2a0 [ 156.303075] __asan_report_store8_noabort+0x88/0x90 [ 156.308089] ? __sock_release+0x25b/0x2a0 [ 156.312257] __sock_release+0x25b/0x2a0 [ 156.316229] ? __sock_release+0x2a0/0x2a0 [ 156.320385] sock_close+0x15/0x20 [ 156.324879] __fput+0x2ce/0x890 [ 156.328145] task_work_run+0x148/0x1c0 [ 156.332060] exit_to_usermode_loop+0x251/0x2a0 [ 156.336634] do_syscall_64+0x538/0x620 [ 156.340508] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 156.345687] RIP: 0033:0x45d5b9 [ 156.348865] Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 156.367755] RSP: 002b:00007f380b916c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 [ 156.375457] RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 [ 156.382725] RDX: 0000000000000004 RSI: 0000000000000001 RDI: 0000000000000007 [ 156.389992] RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 [ 156.397346] R10: 0000000020c7f000 R11: 0000000000000246 R12: 000000000118cf4c [ 156.404616] R13: 00007ffd9ad5c88f R14: 00007f380b9179c0 R15: 000000000118cf4c [ 156.413191] Kernel Offset: disabled [ 156.416811] Rebooting in 86400 seconds..