Warning: Permanently added '10.128.0.227' (ECDSA) to the list of known hosts. 2020/09/04 08:44:02 parsed 1 programs 2020/09/04 08:44:03 executed programs: 0 syzkaller login: [ 35.790041] audit: type=1400 audit(1599209043.012:8): avc: denied { execmem } for pid=6368 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 36.903061] IPVS: ftp: loaded support on port[0] = 21 [ 36.985733] chnl_net:caif_netlink_parms(): no params data found [ 37.054415] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.061241] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.069760] device bridge_slave_0 entered promiscuous mode [ 37.077344] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.084256] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.091399] device bridge_slave_1 entered promiscuous mode [ 37.107959] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 37.116763] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 37.134742] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 37.142335] team0: Port device team_slave_0 added [ 37.148450] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 37.155717] team0: Port device team_slave_1 added [ 37.170948] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 37.177269] 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. [ 37.203058] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 37.215035] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 37.221448] 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. [ 37.247255] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 37.258120] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 37.265815] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 37.285063] device hsr_slave_0 entered promiscuous mode [ 37.290984] device hsr_slave_1 entered promiscuous mode [ 37.297388] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 37.304817] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 37.369279] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.375958] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.382979] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.389461] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.420325] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 37.427463] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.437024] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 37.446676] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.465621] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.473292] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.483691] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 37.489910] 8021q: adding VLAN 0 to HW filter on device team0 [ 37.498624] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.506837] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.513336] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.522943] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.530562] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.536986] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.552657] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 37.567193] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 37.577352] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 37.588732] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 37.595698] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 37.604070] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 37.612487] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.620012] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.627725] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 37.640240] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 37.651239] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 37.658090] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 37.666175] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 37.713543] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 37.723641] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.756159] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 37.764092] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 37.770875] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 37.780727] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.788333] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 37.795562] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 37.805900] device veth0_vlan entered promiscuous mode [ 37.815624] device veth1_vlan entered promiscuous mode [ 37.822431] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 37.831117] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 37.842889] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 37.853228] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 37.860422] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 37.868334] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.877915] device veth0_macvtap entered promiscuous mode [ 37.884651] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 37.893288] device veth1_macvtap entered promiscuous mode [ 37.902107] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 37.911017] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 37.921973] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 37.929172] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.938315] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 37.948366] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 37.955835] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.964222] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 38.083074] mmap: syz-executor.0 (6616) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. [ 38.154742] ================================================================== [ 38.154764] BUG: KASAN: global-out-of-bounds in fbcon_resize+0x705/0x7b0 [ 38.154768] Read of size 4 at addr ffffffff86e69218 by task syz-executor.0/6616 [ 38.154770] [ 38.154775] CPU: 1 PID: 6616 Comm: syz-executor.0 Not tainted 4.14.196-syzkaller #0 [ 38.154778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.154780] Call Trace: [ 38.154788] dump_stack+0x1b2/0x283 [ 38.154798] print_address_description.cold+0x5/0x1d3 [ 38.154806] kasan_report_error.cold+0x8a/0x194 [ 38.154812] ? fbcon_resize+0x705/0x7b0 [ 38.154818] __asan_report_load4_noabort+0x68/0x70 [ 38.154827] ? kasan_unpoison_stack_above_sp_to+0x20/0x20 [ 38.154832] ? fbcon_resize+0x705/0x7b0 [ 38.154838] fbcon_resize+0x705/0x7b0 [ 38.154848] ? display_to_var+0x7b0/0x7b0 [ 38.154869] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 38.154882] ? __kmalloc+0x3a4/0x400 [ 38.154888] ? vc_do_resize+0x252/0xe00 [ 38.154893] ? display_to_var+0x7b0/0x7b0 [ 38.154897] vc_do_resize+0x38b/0xe00 [ 38.154905] ? vc_init+0x430/0x430 [ 38.154912] vt_ioctl+0x76f/0x1f50 [ 38.154918] ? security_secid_to_secctx+0xa0/0xb0 [ 38.154923] ? vt_waitactive+0x2f0/0x2f0 [ 38.154929] ? avc_ss_reset+0x100/0x100 [ 38.154937] ? tty_jobctrl_ioctl+0x3f/0xe60 [ 38.154940] ? vt_waitactive+0x2f0/0x2f0 [ 38.154947] tty_ioctl+0x50f/0x13c0 [ 38.154952] ? tty_fasync+0x2c0/0x2c0 [ 38.154958] ? lock_acquire+0x170/0x3f0 [ 38.154962] ? trace_hardirqs_on+0x10/0x10 [ 38.154967] ? trace_hardirqs_on+0x10/0x10 [ 38.154974] ? futex_exit_release+0x220/0x220 [ 38.154980] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 38.154988] ? tty_fasync+0x2c0/0x2c0 [ 38.154994] do_vfs_ioctl+0x75a/0xff0 [ 38.154999] ? selinux_inode_setxattr+0x730/0x730 [ 38.155004] ? ioctl_preallocate+0x1a0/0x1a0 [ 38.155008] ? lock_downgrade+0x740/0x740 [ 38.155016] ? __fget+0x225/0x360 [ 38.155022] ? security_file_ioctl+0x83/0xb0 [ 38.155027] SyS_ioctl+0x7f/0xb0 [ 38.155031] ? do_vfs_ioctl+0xff0/0xff0 [ 38.155037] do_syscall_64+0x1d5/0x640 [ 38.155045] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 38.155049] RIP: 0033:0x45d5b9 [ 38.155051] RSP: 002b:00007f85153a4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.155057] RAX: ffffffffffffffda RBX: 000000000001d000 RCX: 000000000045d5b9 [ 38.155059] RDX: 0000000020000000 RSI: 0000000000005609 RDI: 0000000000000006 [ 38.155062] RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 [ 38.155064] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c [ 38.155066] R13: 00007fffa0eac04f R14: 00007f85153a59c0 R15: 000000000118cf4c [ 38.155073] [ 38.155075] The buggy address belongs to the variable: [ 38.155080] font_vga_8x16+0x58/0x60 [ 38.155081] [ 38.155082] Memory state around the buggy address: [ 38.155087] ffffffff86e69100: 00 00 00 00 00 00 00 00 00 00 00 00 fa fa fa fa [ 38.155091] ffffffff86e69180: 00 fa fa fa fa fa fa fa 00 00 00 00 00 fa fa fa [ 38.155094] >ffffffff86e69200: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.155096] ^ [ 38.155099] ffffffff86e69280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.155101] ffffffff86e69300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 38.155103] ================================================================== [ 38.155105] Disabling lock debugging due to kernel taint [ 38.155107] Kernel panic - not syncing: panic_on_warn set ... [ 38.155107] [ 38.155111] CPU: 1 PID: 6616 Comm: syz-executor.0 Tainted: G B 4.14.196-syzkaller #0 [ 38.155113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.155114] Call Trace: [ 38.155118] dump_stack+0x1b2/0x283 [ 38.155124] panic+0x1f9/0x42d [ 38.155128] ? add_taint.cold+0x16/0x16 [ 38.155132] ? lock_downgrade+0x740/0x740 [ 38.155138] kasan_end_report+0x43/0x49 [ 38.155142] kasan_report_error.cold+0xa7/0x194 [ 38.155145] ? fbcon_resize+0x705/0x7b0 [ 38.155149] __asan_report_load4_noabort+0x68/0x70 [ 38.155154] ? kasan_unpoison_stack_above_sp_to+0x20/0x20 [ 38.155157] ? fbcon_resize+0x705/0x7b0 [ 38.155160] fbcon_resize+0x705/0x7b0 [ 38.155164] ? display_to_var+0x7b0/0x7b0 [ 38.155171] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 38.155175] ? __kmalloc+0x3a4/0x400 [ 38.155178] ? vc_do_resize+0x252/0xe00 [ 38.155182] ? display_to_var+0x7b0/0x7b0 [ 38.155186] vc_do_resize+0x38b/0xe00 [ 38.155191] ? vc_init+0x430/0x430 [ 38.155196] vt_ioctl+0x76f/0x1f50 [ 38.155200] ? security_secid_to_secctx+0xa0/0xb0 [ 38.155203] ? vt_waitactive+0x2f0/0x2f0 [ 38.155207] ? avc_ss_reset+0x100/0x100 [ 38.155212] ? tty_jobctrl_ioctl+0x3f/0xe60 [ 38.155215] ? vt_waitactive+0x2f0/0x2f0 [ 38.155220] tty_ioctl+0x50f/0x13c0 [ 38.155224] ? tty_fasync+0x2c0/0x2c0 [ 38.155227] ? lock_acquire+0x170/0x3f0 [ 38.155231] ? trace_hardirqs_on+0x10/0x10 [ 38.155235] ? trace_hardirqs_on+0x10/0x10 [ 38.155240] ? futex_exit_release+0x220/0x220 [ 38.155244] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 38.155249] ? tty_fasync+0x2c0/0x2c0 [ 38.155253] do_vfs_ioctl+0x75a/0xff0 [ 38.155257] ? selinux_inode_setxattr+0x730/0x730 [ 38.155261] ? ioctl_preallocate+0x1a0/0x1a0 [ 38.155264] ? lock_downgrade+0x740/0x740 [ 38.155269] ? __fget+0x225/0x360 [ 38.155274] ? security_file_ioctl+0x83/0xb0 [ 38.155278] SyS_ioctl+0x7f/0xb0 [ 38.155282] ? do_vfs_ioctl+0xff0/0xff0 [ 38.155286] do_syscall_64+0x1d5/0x640 [ 38.155292] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 38.155294] RIP: 0033:0x45d5b9 [ 38.155296] RSP: 002b:00007f85153a4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.155300] RAX: ffffffffffffffda RBX: 000000000001d000 RCX: 000000000045d5b9 [ 38.155302] RDX: 0000000020000000 RSI: 0000000000005609 RDI: 0000000000000006 [ 38.155304] RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 [ 38.155306] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c [ 38.155308] R13: 00007fffa0eac04f R14: 00007f85153a59c0 R15: 000000000118cf4c [ 38.156202] Kernel Offset: disabled [ 38.739077] Rebooting in 86400 seconds..