Warning: Permanently added '10.128.0.207' (ECDSA) to the list of known hosts. 2021/06/04 12:15:04 parsed 1 programs 2021/06/04 12:15:04 executed programs: 0 syzkaller login: [ 417.208070] IPVS: ftp: loaded support on port[0] = 21 [ 417.315241] chnl_net:caif_netlink_parms(): no params data found [ 417.407826] bridge0: port 1(bridge_slave_0) entered blocking state [ 417.414778] bridge0: port 1(bridge_slave_0) entered disabled state [ 417.422741] device bridge_slave_0 entered promiscuous mode [ 417.431183] bridge0: port 2(bridge_slave_1) entered blocking state [ 417.437909] bridge0: port 2(bridge_slave_1) entered disabled state [ 417.446555] device bridge_slave_1 entered promiscuous mode [ 417.465917] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 417.475313] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 417.495157] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 417.503384] team0: Port device team_slave_0 added [ 417.510353] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 417.517896] team0: Port device team_slave_1 added [ 417.535160] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 417.541685] 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. [ 417.568271] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 417.580693] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 417.587158] 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. [ 417.613228] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 417.624614] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 417.632612] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 417.651995] device hsr_slave_0 entered promiscuous mode [ 417.659570] device hsr_slave_1 entered promiscuous mode [ 417.665900] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 417.674037] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 417.740934] bridge0: port 2(bridge_slave_1) entered blocking state [ 417.747784] bridge0: port 2(bridge_slave_1) entered forwarding state [ 417.755047] bridge0: port 1(bridge_slave_0) entered blocking state [ 417.761976] bridge0: port 1(bridge_slave_0) entered forwarding state [ 417.793598] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 417.802123] 8021q: adding VLAN 0 to HW filter on device bond0 [ 417.811223] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 417.821037] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 417.831103] bridge0: port 1(bridge_slave_0) entered disabled state [ 417.838412] bridge0: port 2(bridge_slave_1) entered disabled state [ 417.845707] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 417.859330] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 417.865756] 8021q: adding VLAN 0 to HW filter on device team0 [ 417.875721] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 417.884920] bridge0: port 1(bridge_slave_0) entered blocking state [ 417.891538] bridge0: port 1(bridge_slave_0) entered forwarding state [ 417.910828] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 417.919087] bridge0: port 2(bridge_slave_1) entered blocking state [ 417.925463] bridge0: port 2(bridge_slave_1) entered forwarding state [ 417.934901] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 417.943670] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 417.952006] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 417.963043] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 417.973830] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 417.980328] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 417.987711] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 417.995805] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 418.010043] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 418.017650] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 418.025618] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 418.036539] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 418.050716] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 418.061726] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 418.095788] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 418.103454] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 418.111244] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 418.121646] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 418.129671] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 418.136858] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 418.147289] device veth0_vlan entered promiscuous mode [ 418.156764] device veth1_vlan entered promiscuous mode [ 418.163541] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 418.173090] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 418.185000] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 418.195095] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 418.202813] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 418.210371] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 418.220914] device veth0_macvtap entered promiscuous mode [ 418.227621] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 418.237339] device veth1_macvtap entered promiscuous mode [ 418.246666] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 418.257313] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 418.268834] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 418.276260] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 418.285712] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 418.296303] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 418.304108] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 418.311713] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 418.320089] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 418.435899] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 418.443481] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 418.460073] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 418.465088] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 418.475356] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 418.485687] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 418.493875] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 418.501521] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 418.557939] hrtimer: interrupt took 58529 ns [ 419.239358] Bluetooth: hci0: command 0x0409 tx timeout 2021/06/04 12:15:09 executed programs: 122 [ 421.318767] Bluetooth: hci0: command 0x041b tx timeout [ 423.402176] Bluetooth: hci0: command 0x040f tx timeout [ 425.478517] Bluetooth: hci0: command 0x0419 tx timeout 2021/06/04 12:15:14 executed programs: 360 2021/06/04 12:15:19 executed programs: 603 2021/06/04 12:15:24 executed programs: 847 [ 441.089258] ieee802154 phy0 wpan0: encryption failed: -22 [ 441.095056] ieee802154 phy1 wpan1: encryption failed: -22 2021/06/04 12:15:29 executed programs: 1096 2021/06/04 12:15:34 executed programs: 1342 [ 447.596428] ================================================================== [ 447.604166] BUG: KASAN: use-after-free in vgem_gem_dumb_create+0x22c/0x240 [ 447.611378] Read of size 8 at addr ffff88809dd8ae40 by task syz-executor.0/14898 [ 447.618909] [ 447.620542] CPU: 1 PID: 14898 Comm: syz-executor.0 Not tainted 4.19.193-syzkaller #0 [ 447.628411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 447.637861] Call Trace: [ 447.640459] dump_stack+0x1fc/0x2ef [ 447.644292] print_address_description.cold+0x54/0x219 [ 447.649797] kasan_report_error.cold+0x8a/0x1b9 [ 447.654467] ? vgem_gem_dumb_create+0x22c/0x240 [ 447.659389] __asan_report_load8_noabort+0x88/0x90 [ 447.664341] ? drm_gem_object_put_unlocked+0xd0/0x180 [ 447.669521] ? vgem_gem_dumb_create+0x22c/0x240 [ 447.674659] vgem_gem_dumb_create+0x22c/0x240 [ 447.679683] drm_mode_create_dumb+0x27c/0x300 [ 447.684173] drm_ioctl_kernel+0x208/0x2a0 [ 447.688310] ? drm_mode_create_dumb+0x300/0x300 [ 447.692970] ? drm_ioctl_permit+0x210/0x210 [ 447.697404] ? __might_fault+0x192/0x1d0 [ 447.701452] drm_ioctl+0x507/0x9c0 [ 447.705019] ? drm_mode_create_dumb+0x300/0x300 [ 447.709701] ? drm_getstats+0x20/0x20 [ 447.713524] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 447.718370] ? filename_lookup+0x3d5/0x5a0 [ 447.722774] ? filename_parentat+0x590/0x590 [ 447.727265] ? futex_exit_release+0x220/0x220 [ 447.733225] ? retint_kernel+0x2d/0x2d [ 447.737330] ? drm_getstats+0x20/0x20 [ 447.741383] do_vfs_ioctl+0xcdb/0x12e0 [ 447.745269] ? lock_downgrade+0x720/0x720 [ 447.749463] ? check_preemption_disabled+0x41/0x280 [ 447.754736] ? ioctl_preallocate+0x200/0x200 [ 447.759483] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 447.764233] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 447.769069] ? rcu_nmi_exit+0xb3/0x180 [ 447.772950] ? retint_kernel+0x2d/0x2d [ 447.777000] ? ksys_ioctl+0x34/0xc0 [ 447.780619] ? ksys_ioctl+0x3e/0xc0 [ 447.784340] ksys_ioctl+0x9b/0xc0 [ 447.787790] __x64_sys_ioctl+0x6f/0xb0 [ 447.791663] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 447.796231] do_syscall_64+0xf9/0x620 [ 447.800289] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 447.805751] RIP: 0033:0x4665d9 [ 447.808929] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 447.828257] RSP: 002b:00007f67e72a7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 447.835955] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 [ 447.843308] RDX: 00000000200000c0 RSI: 00000000c02064b2 RDI: 0000000000000004 [ 447.850820] RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 [ 447.858262] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 447.865512] R13: 00007ffdb3be46af R14: 00007f67e72a7300 R15: 0000000000022000 [ 447.872950] [ 447.874560] Allocated by task 14898: [ 447.878265] kmem_cache_alloc_trace+0x12f/0x380 [ 447.883188] __vgem_gem_create+0x44/0xf0 [ 447.887373] vgem_gem_dumb_create+0xcf/0x240 [ 447.891773] drm_mode_create_dumb+0x27c/0x300 [ 447.896248] drm_ioctl_kernel+0x208/0x2a0 [ 447.900392] drm_ioctl+0x507/0x9c0 [ 447.903919] do_vfs_ioctl+0xcdb/0x12e0 [ 447.907785] ksys_ioctl+0x9b/0xc0 [ 447.911237] __x64_sys_ioctl+0x6f/0xb0 [ 447.915387] do_syscall_64+0xf9/0x620 [ 447.919344] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 447.924604] [ 447.926241] Freed by task 14898: [ 447.929936] kfree+0xcc/0x210 [ 447.933044] drm_gem_object_free+0x91/0x1c0 [ 447.937348] drm_gem_object_put_unlocked+0xd1/0x180 [ 447.942434] vgem_gem_dumb_create+0x10c/0x240 [ 447.946915] drm_mode_create_dumb+0x27c/0x300 [ 447.951563] drm_ioctl_kernel+0x208/0x2a0 [ 447.955690] drm_ioctl+0x507/0x9c0 [ 447.959238] do_vfs_ioctl+0xcdb/0x12e0 [ 447.963229] ksys_ioctl+0x9b/0xc0 [ 447.966682] __x64_sys_ioctl+0x6f/0xb0 [ 447.970733] do_syscall_64+0xf9/0x620 [ 447.974535] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 447.979701] [ 447.981311] The buggy address belongs to the object at ffff88809dd8ad40 [ 447.981311] which belongs to the cache kmalloc-512 of size 512 [ 447.994035] The buggy address is located 256 bytes inside of [ 447.994035] 512-byte region [ffff88809dd8ad40, ffff88809dd8af40) [ 448.005976] The buggy address belongs to the page: [ 448.010911] page:ffffea0002776280 count:1 mapcount:0 mapping:ffff88813bff0940 index:0x0 [ 448.019153] flags: 0xfff00000000100(slab) [ 448.023321] raw: 00fff00000000100 ffffea0002d425c8 ffffea0002958bc8 ffff88813bff0940 [ 448.033083] raw: 0000000000000000 ffff88809dd8a0c0 0000000100000006 0000000000000000 [ 448.041533] page dumped because: kasan: bad access detected [ 448.047421] [ 448.049414] Memory state around the buggy address: [ 448.054323] ffff88809dd8ad00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 448.061751] ffff88809dd8ad80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 448.069244] >ffff88809dd8ae00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 448.076581] ^ [ 448.082028] ffff88809dd8ae80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 448.089581] ffff88809dd8af00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 448.097013] ================================================================== [ 448.104461] Disabling lock debugging due to kernel taint [ 448.112119] Kernel panic - not syncing: panic_on_warn set ... [ 448.112119] [ 448.119522] CPU: 0 PID: 14898 Comm: syz-executor.0 Tainted: G B 4.19.193-syzkaller #0 [ 448.129148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 448.138679] Call Trace: [ 448.141276] dump_stack+0x1fc/0x2ef [ 448.144912] panic+0x26a/0x50e [ 448.148125] ? __warn_printk+0xf3/0xf3 [ 448.152176] ? preempt_schedule_common+0x45/0xc0 [ 448.156937] ? ___preempt_schedule+0x16/0x18 [ 448.161339] ? trace_hardirqs_on+0x55/0x210 [ 448.165673] kasan_end_report+0x43/0x49 [ 448.169731] kasan_report_error.cold+0xa7/0x1b9 [ 448.174475] ? vgem_gem_dumb_create+0x22c/0x240 [ 448.179294] __asan_report_load8_noabort+0x88/0x90 [ 448.184326] ? drm_gem_object_put_unlocked+0xd0/0x180 [ 448.189501] ? vgem_gem_dumb_create+0x22c/0x240 [ 448.194166] vgem_gem_dumb_create+0x22c/0x240 [ 448.198786] drm_mode_create_dumb+0x27c/0x300 [ 448.203261] drm_ioctl_kernel+0x208/0x2a0 [ 448.207561] ? drm_mode_create_dumb+0x300/0x300 [ 448.212217] ? drm_ioctl_permit+0x210/0x210 [ 448.216963] ? __might_fault+0x192/0x1d0 [ 448.221033] drm_ioctl+0x507/0x9c0 [ 448.224573] ? drm_mode_create_dumb+0x300/0x300 [ 448.229240] ? drm_getstats+0x20/0x20 [ 448.233127] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 448.237724] ? filename_lookup+0x3d5/0x5a0 [ 448.242129] ? filename_parentat+0x590/0x590 [ 448.247086] ? futex_exit_release+0x220/0x220 [ 448.251575] ? retint_kernel+0x2d/0x2d [ 448.255460] ? drm_getstats+0x20/0x20 [ 448.259270] do_vfs_ioctl+0xcdb/0x12e0 [ 448.263153] ? lock_downgrade+0x720/0x720 [ 448.267283] ? check_preemption_disabled+0x41/0x280 [ 448.272646] ? ioctl_preallocate+0x200/0x200 [ 448.277158] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 448.281864] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 448.286775] ? rcu_nmi_exit+0xb3/0x180 [ 448.290665] ? retint_kernel+0x2d/0x2d [ 448.294551] ? ksys_ioctl+0x34/0xc0 [ 448.298181] ? ksys_ioctl+0x3e/0xc0 [ 448.301795] ksys_ioctl+0x9b/0xc0 [ 448.305306] __x64_sys_ioctl+0x6f/0xb0 [ 448.309259] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 448.313846] do_syscall_64+0xf9/0x620 [ 448.317642] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 448.322927] RIP: 0033:0x4665d9 [ 448.326119] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 448.345175] RSP: 002b:00007f67e72a7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 448.352876] RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 [ 448.360153] RDX: 00000000200000c0 RSI: 00000000c02064b2 RDI: 0000000000000004 [ 448.367429] RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 [ 448.374692] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 [ 448.383392] R13: 00007ffdb3be46af R14: 00007f67e72a7300 R15: 0000000000022000 [ 448.390726] Kernel Offset: disabled [ 448.394340] Rebooting in 86400 seconds..