Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.229' (ECDSA) to the list of known hosts. 2021/04/10 22:10:51 parsed 1 programs 2021/04/10 22:10:51 executed programs: 0 syzkaller login: [ 34.539629] IPVS: ftp: loaded support on port[0] = 21 [ 34.644992] chnl_net:caif_netlink_parms(): no params data found [ 34.771097] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.778194] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.785456] device bridge_slave_0 entered promiscuous mode [ 34.792763] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.799582] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.806711] device bridge_slave_1 entered promiscuous mode [ 34.825271] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 34.834394] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 34.853180] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 34.860783] team0: Port device team_slave_0 added [ 34.866633] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 34.873930] team0: Port device team_slave_1 added [ 34.890111] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 34.896514] 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. [ 34.923085] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 34.934589] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 34.940953] 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. [ 34.966194] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 34.977060] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 34.984440] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 35.004209] device hsr_slave_0 entered promiscuous mode [ 35.010019] device hsr_slave_1 entered promiscuous mode [ 35.016427] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 35.023427] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 35.090883] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.097486] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.104363] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.110777] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.140727] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 35.148617] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.157841] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 35.167444] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 35.176278] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.183285] bridge0: port 2(bridge_slave_1) entered disabled state [ 35.190993] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 35.201709] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 35.207953] 8021q: adding VLAN 0 to HW filter on device team0 [ 35.218408] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 35.226355] bridge0: port 1(bridge_slave_0) entered blocking state [ 35.232700] bridge0: port 1(bridge_slave_0) entered forwarding state [ 35.253539] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 35.263597] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 35.275837] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 35.282631] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 35.290952] bridge0: port 2(bridge_slave_1) entered blocking state [ 35.297458] bridge0: port 2(bridge_slave_1) entered forwarding state [ 35.305331] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 35.313043] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 35.320837] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 35.328574] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 35.336269] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 35.343107] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 35.355281] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 35.366446] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 35.372944] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 35.380066] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 35.393744] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 35.403502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 35.440926] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 35.448170] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 35.456239] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 35.466016] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 35.473630] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 35.480942] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 35.489945] device veth0_vlan entered promiscuous mode [ 35.499302] device veth1_vlan entered promiscuous mode [ 35.505476] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 35.513750] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 35.525022] IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready [ 35.534050] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 35.542411] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 35.550367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 35.559867] device veth0_macvtap entered promiscuous mode [ 35.566357] IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready [ 35.574153] device veth1_macvtap entered promiscuous mode [ 35.583171] IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready [ 35.593122] IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready [ 35.602846] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 35.610151] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 35.618656] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 35.629163] IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready [ 35.636170] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 35.642722] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 35.651072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 35.760400] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 35.767567] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 35.786456] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 35.790509] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 35.801048] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 35.810540] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 35.817992] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 35.826344] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 36.574822] Bluetooth: hci0: command 0x0409 tx timeout 2021/04/10 22:10:56 executed programs: 141 [ 38.652721] Bluetooth: hci0: command 0x041b tx timeout [ 40.731632] Bluetooth: hci0: command 0x040f tx timeout [ 42.810677] Bluetooth: hci0: command 0x0419 tx timeout 2021/04/10 22:11:01 executed programs: 424 2021/04/10 22:11:06 executed programs: 739 2021/04/10 22:11:11 executed programs: 1276 [ 54.969512] kasan: CONFIG_KASAN_INLINE enabled [ 54.974647] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 54.983499] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 54.989742] CPU: 0 PID: 13605 Comm: syz-executor.0 Not tainted 4.19.186-syzkaller #0 [ 54.997600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.006944] RIP: 0010:vgem_fence_attach_ioctl+0x27d/0x640 [ 55.012469] Code: 03 80 3c 02 00 0f 85 9b 03 00 00 4c 8b b5 10 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d be e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7f 03 00 00 4c 89 ea 4d 8b b6 e0 00 00 00 48 b8 [ 55.031439] RSP: 0018:ffff888095337af0 EFLAGS: 00010202 [ 55.036789] RAX: dffffc0000000000 RBX: ffff88809497ec80 RCX: 1ffff11012a66f4b [ 55.044044] RDX: 000000000000001c RSI: ffffffff8153a48f RDI: 00000000000000e0 [ 55.051294] RBP: ffff8880ae867840 R08: 0000000000000000 R09: 0000000000000000 [ 55.058541] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880afbc1000 [ 55.065791] R13: ffff88809497ec84 R14: 0000000000000000 R15: ffff8880afbc1098 [ 55.073040] FS: 00007f45cf4e6700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 55.081268] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.087132] CR2: 00007f45cf4c5718 CR3: 00000000af2c8000 CR4: 00000000001406f0 [ 55.094429] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.101683] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.108968] Call Trace: [ 55.111551] drm_ioctl_kernel+0x208/0x2a0 [ 55.115682] ? __vgem_fence_idr_fini+0x60/0x60 [ 55.120243] ? drm_ioctl_permit+0x210/0x210 [ 55.124548] ? __might_fault+0x192/0x1d0 [ 55.128611] drm_ioctl+0x507/0x9c0 [ 55.132132] ? __vgem_fence_idr_fini+0x60/0x60 [ 55.136692] ? drm_getstats+0x20/0x20 [ 55.140474] ? debug_check_no_obj_freed+0x201/0x490 [ 55.145471] ? futex_exit_release+0x220/0x220 [ 55.149948] ? drm_getstats+0x20/0x20 [ 55.153731] do_vfs_ioctl+0xcdb/0x12e0 [ 55.157624] ? lock_downgrade+0x720/0x720 [ 55.161753] ? check_preemption_disabled+0x41/0x280 [ 55.166858] ? ioctl_preallocate+0x200/0x200 [ 55.171257] ? __fget+0x356/0x510 [ 55.174697] ? do_dup2+0x450/0x450 [ 55.178220] ? __se_sys_futex+0x298/0x3b0 [ 55.182397] ? __fdget+0x1a0/0x230 [ 55.185927] ksys_ioctl+0x9b/0xc0 [ 55.189378] __x64_sys_ioctl+0x6f/0xb0 [ 55.193247] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 55.197858] do_syscall_64+0xf9/0x620 [ 55.201640] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.206809] RIP: 0033:0x466459 [ 55.209980] 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 [ 55.228877] RSP: 002b:00007f45cf4e6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.236652] RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000466459 [ 55.243903] RDX: 0000000020000140 RSI: 00000000c10c5541 RDI: 0000000000000003 [ 55.251167] RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 [ 55.258415] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 [ 55.265760] R13: 00007ffe05be919f R14: 00007f45cf4e6300 R15: 0000000000022000 [ 55.273025] Modules linked in: [ 55.286306] ---[ end trace f5eb6749a0407559 ]--- [ 55.291138] RIP: 0010:vgem_fence_attach_ioctl+0x27d/0x640 [ 55.296655] Code: 03 80 3c 02 00 0f 85 9b 03 00 00 4c 8b b5 10 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d be e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7f 03 00 00 4c 89 ea 4d 8b b6 e0 00 00 00 48 b8 [ 55.316313] RSP: 0018:ffff888095337af0 EFLAGS: 00010202