Warning: Permanently added '10.128.0.13' (ECDSA) to the list of known hosts. 2020/09/03 21:10:32 parsed 1 programs 2020/09/03 21:10:32 executed programs: 0 syzkaller login: [ 35.011954] audit: type=1400 audit(1599167432.818:8): 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 [ 36.111597] IPVS: ftp: loaded support on port[0] = 21 [ 36.191998] chnl_net:caif_netlink_parms(): no params data found [ 36.267342] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.273921] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.282375] device bridge_slave_0 entered promiscuous mode [ 36.289402] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.296107] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.303528] device bridge_slave_1 entered promiscuous mode [ 36.320888] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 36.330158] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 36.348185] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 36.355539] team0: Port device team_slave_0 added [ 36.361671] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 36.368837] team0: Port device team_slave_1 added [ 36.384110] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 36.391565] 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. [ 36.416890] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 36.428339] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 36.434725] 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. [ 36.459979] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 36.470724] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 36.478161] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 36.496730] device hsr_slave_0 entered promiscuous mode [ 36.502454] device hsr_slave_1 entered promiscuous mode [ 36.508472] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 36.515796] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 36.579902] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.586360] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.593385] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.599815] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.630716] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 36.636824] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.645601] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 36.655148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 36.674533] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.682164] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.694172] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 36.700377] 8021q: adding VLAN 0 to HW filter on device team0 [ 36.708654] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 36.717000] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.723439] bridge0: port 1(bridge_slave_0) entered forwarding state [ 36.733208] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 36.740983] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.747363] bridge0: port 2(bridge_slave_1) entered forwarding state [ 36.761880] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 36.770551] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 36.781262] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 36.794250] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 36.804852] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 36.816135] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 36.822892] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 36.831126] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 36.838635] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 36.852101] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 36.859811] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 36.866536] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 36.877318] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 36.931575] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 36.942030] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 36.972648] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 36.980255] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 36.986777] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 36.996619] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.005578] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 37.012924] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 37.022476] device veth0_vlan entered promiscuous mode [ 37.032705] device veth1_vlan entered promiscuous mode [ 37.038645] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 37.047645] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 37.059329] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 37.068523] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 37.076564] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 37.084697] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.094236] device veth0_macvtap entered promiscuous mode [ 37.100399] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 37.108369] device veth1_macvtap entered promiscuous mode [ 37.117310] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 37.126593] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 37.136584] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 37.143756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.152296] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 37.163810] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 37.171360] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 37.178542] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.294332] mmap: syz-executor.0 (6614) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. [ 37.368786] ================================================================== [ 37.368820] BUG: KASAN: global-out-of-bounds in fbcon_resize+0x705/0x7b0 [ 37.368827] Read of size 4 at addr ffffffff86e69218 by task syz-executor.0/6614 [ 37.368829] [ 37.368837] CPU: 0 PID: 6614 Comm: syz-executor.0 Not tainted 4.14.196-syzkaller #0 [ 37.368842] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.368845] Call Trace: [ 37.368856] dump_stack+0x1b2/0x283 [ 37.368869] print_address_description.cold+0x5/0x1d3 [ 37.368880] kasan_report_error.cold+0x8a/0x194 [ 37.368887] ? fbcon_resize+0x705/0x7b0 [ 37.368894] __asan_report_load4_noabort+0x68/0x70 [ 37.368903] ? kasan_unpoison_stack_above_sp_to+0x20/0x20 [ 37.368908] ? fbcon_resize+0x705/0x7b0 [ 37.368913] fbcon_resize+0x705/0x7b0 [ 37.368923] ? display_to_var+0x7b0/0x7b0 [ 37.368943] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.368950] ? __kmalloc+0x3a4/0x400 [ 37.368958] ? vc_do_resize+0x252/0xe00 [ 37.368965] ? display_to_var+0x7b0/0x7b0 [ 37.368972] vc_do_resize+0x38b/0xe00 [ 37.368984] ? vc_init+0x430/0x430 [ 37.368996] vt_ioctl+0x76f/0x1f50 [ 37.369004] ? security_secid_to_secctx+0xa0/0xb0 [ 37.369012] ? vt_waitactive+0x2f0/0x2f0 [ 37.369022] ? avc_ss_reset+0x100/0x100 [ 37.369034] ? tty_jobctrl_ioctl+0x3f/0xe60 [ 37.369040] ? vt_waitactive+0x2f0/0x2f0 [ 37.369051] tty_ioctl+0x50f/0x13c0 [ 37.369060] ? tty_fasync+0x2c0/0x2c0 [ 37.369068] ? lock_acquire+0x170/0x3f0 [ 37.369075] ? trace_hardirqs_on+0x10/0x10 [ 37.369083] ? trace_hardirqs_on+0x10/0x10 [ 37.369092] ? futex_exit_release+0x220/0x220 [ 37.369099] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 37.369109] ? tty_fasync+0x2c0/0x2c0 [ 37.369118] do_vfs_ioctl+0x75a/0xff0 [ 37.369137] ? selinux_inode_setxattr+0x730/0x730 [ 37.369145] ? ioctl_preallocate+0x1a0/0x1a0 [ 37.369152] ? lock_downgrade+0x740/0x740 [ 37.369165] ? __fget+0x225/0x360 [ 37.369175] ? security_file_ioctl+0x83/0xb0 [ 37.369182] SyS_ioctl+0x7f/0xb0 [ 37.369186] ? do_vfs_ioctl+0xff0/0xff0 [ 37.369193] do_syscall_64+0x1d5/0x640 [ 37.369200] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 37.369205] RIP: 0033:0x45d5b9 [ 37.369208] RSP: 002b:00007f17287c0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.369213] RAX: ffffffffffffffda RBX: 000000000001d000 RCX: 000000000045d5b9 [ 37.369216] RDX: 0000000020000000 RSI: 0000000000005609 RDI: 0000000000000006 [ 37.369218] RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 [ 37.369221] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c [ 37.369224] R13: 00007ffd56ae3e0f R14: 00007f17287c19c0 R15: 000000000118cf4c [ 37.369230] [ 37.369232] The buggy address belongs to the variable: [ 37.369237] font_vga_8x16+0x58/0x60 [ 37.369239] [ 37.369240] Memory state around the buggy address: [ 37.369244] ffffffff86e69100: 00 00 00 00 00 00 00 00 00 00 00 00 fa fa fa fa [ 37.369248] ffffffff86e69180: 00 fa fa fa fa fa fa fa 00 00 00 00 00 fa fa fa [ 37.369251] >ffffffff86e69200: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00 [ 37.369253] ^ [ 37.369256] ffffffff86e69280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 37.369259] ffffffff86e69300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 37.369261] ================================================================== [ 37.369262] Disabling lock debugging due to kernel taint [ 37.369311] Kernel panic - not syncing: panic_on_warn set ... [ 37.369311] [ 37.369318] CPU: 0 PID: 6614 Comm: syz-executor.0 Tainted: G B 4.14.196-syzkaller #0 [ 37.369321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.369323] Call Trace: [ 37.369332] dump_stack+0x1b2/0x283 [ 37.369341] panic+0x1f9/0x42d [ 37.369347] ? add_taint.cold+0x16/0x16 [ 37.369355] ? ___preempt_schedule+0x16/0x18 [ 37.369365] kasan_end_report+0x43/0x49 [ 37.369372] kasan_report_error.cold+0xa7/0x194 [ 37.369376] ? fbcon_resize+0x705/0x7b0 [ 37.369380] __asan_report_load4_noabort+0x68/0x70 [ 37.369384] ? kasan_unpoison_stack_above_sp_to+0x20/0x20 [ 37.369387] ? fbcon_resize+0x705/0x7b0 [ 37.369390] fbcon_resize+0x705/0x7b0 [ 37.369395] ? display_to_var+0x7b0/0x7b0 [ 37.369403] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 37.369406] ? __kmalloc+0x3a4/0x400 [ 37.369410] ? vc_do_resize+0x252/0xe00 [ 37.369414] ? display_to_var+0x7b0/0x7b0 [ 37.369418] vc_do_resize+0x38b/0xe00 [ 37.369424] ? vc_init+0x430/0x430 [ 37.369429] vt_ioctl+0x76f/0x1f50 [ 37.369433] ? security_secid_to_secctx+0xa0/0xb0 [ 37.369436] ? vt_waitactive+0x2f0/0x2f0 [ 37.369440] ? avc_ss_reset+0x100/0x100 [ 37.369446] ? tty_jobctrl_ioctl+0x3f/0xe60 [ 37.369449] ? vt_waitactive+0x2f0/0x2f0 [ 37.369454] tty_ioctl+0x50f/0x13c0 [ 37.369458] ? tty_fasync+0x2c0/0x2c0 [ 37.369461] ? lock_acquire+0x170/0x3f0 [ 37.369466] ? trace_hardirqs_on+0x10/0x10 [ 37.369470] ? trace_hardirqs_on+0x10/0x10 [ 37.369474] ? futex_exit_release+0x220/0x220 [ 37.369478] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 37.369484] ? tty_fasync+0x2c0/0x2c0 [ 37.369488] do_vfs_ioctl+0x75a/0xff0 [ 37.369492] ? selinux_inode_setxattr+0x730/0x730 [ 37.369496] ? ioctl_preallocate+0x1a0/0x1a0 [ 37.369500] ? lock_downgrade+0x740/0x740 [ 37.369505] ? __fget+0x225/0x360 [ 37.369509] ? security_file_ioctl+0x83/0xb0 [ 37.369514] SyS_ioctl+0x7f/0xb0 [ 37.369517] ? do_vfs_ioctl+0xff0/0xff0 [ 37.369522] do_syscall_64+0x1d5/0x640 [ 37.369527] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 37.369530] RIP: 0033:0x45d5b9 [ 37.369532] RSP: 002b:00007f17287c0c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.369536] RAX: ffffffffffffffda RBX: 000000000001d000 RCX: 000000000045d5b9 [ 37.369538] RDX: 0000000020000000 RSI: 0000000000005609 RDI: 0000000000000006 [ 37.369541] RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 [ 37.369543] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c [ 37.369545] R13: 00007ffd56ae3e0f R14: 00007f17287c19c0 R15: 000000000118cf4c [ 37.370761] Kernel Offset: disabled [ 37.949331] Rebooting in 86400 seconds..