[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. 2021/10/20 20:57:35 parsed 1 programs syzkaller login: [ 295.737979][ T6535] cgroup: Unknown subsys name 'net' [ 295.752189][ T6535] cgroup: Unknown subsys name 'rlimit' 2021/10/20 20:57:36 executed programs: 0 [ 297.408441][ T6548] chnl_net:caif_netlink_parms(): no params data found [ 297.480308][ T6548] bridge0: port 1(bridge_slave_0) entered blocking state [ 297.488137][ T6548] bridge0: port 1(bridge_slave_0) entered disabled state [ 297.497999][ T6548] device bridge_slave_0 entered promiscuous mode [ 297.509904][ T6548] bridge0: port 2(bridge_slave_1) entered blocking state [ 297.517101][ T6548] bridge0: port 2(bridge_slave_1) entered disabled state [ 297.526527][ T6548] device bridge_slave_1 entered promiscuous mode [ 297.559591][ T6548] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 297.571713][ T6548] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 297.606328][ T6548] team0: Port device team_slave_0 added [ 297.614965][ T6548] team0: Port device team_slave_1 added [ 297.647923][ T6548] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 297.655243][ T6548] 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. [ 297.682923][ T6548] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 297.696391][ T6548] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 297.703436][ T6548] 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. [ 297.729575][ T6548] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 297.767224][ T6548] device hsr_slave_0 entered promiscuous mode [ 297.773979][ T6548] device hsr_slave_1 entered promiscuous mode [ 297.902951][ T6548] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 297.913542][ T6548] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 297.923261][ T6548] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 297.934377][ T6548] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 297.957110][ T6548] bridge0: port 2(bridge_slave_1) entered blocking state [ 297.964334][ T6548] bridge0: port 2(bridge_slave_1) entered forwarding state [ 297.972135][ T6548] bridge0: port 1(bridge_slave_0) entered blocking state [ 297.980343][ T6548] bridge0: port 1(bridge_slave_0) entered forwarding state [ 298.028522][ T6548] 8021q: adding VLAN 0 to HW filter on device bond0 [ 298.042445][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 298.055572][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 298.064479][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 298.074051][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 298.087592][ T6548] 8021q: adding VLAN 0 to HW filter on device team0 [ 298.100183][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 298.109498][ T20] bridge0: port 1(bridge_slave_0) entered blocking state [ 298.116572][ T20] bridge0: port 1(bridge_slave_0) entered forwarding state [ 298.129438][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 298.137833][ T20] bridge0: port 2(bridge_slave_1) entered blocking state [ 298.144966][ T20] bridge0: port 2(bridge_slave_1) entered forwarding state [ 298.165983][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 298.175134][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 298.187434][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 298.200949][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 298.214713][ T6548] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 298.226626][ T6548] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 298.234791][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 298.257877][ T6548] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 298.265955][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 298.274493][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 298.302746][ T20] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 298.317668][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 298.329335][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 298.336974][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 298.346226][ T6548] device veth0_vlan entered promiscuous mode [ 298.359353][ T6548] device veth1_vlan entered promiscuous mode [ 298.381209][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 298.389966][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 298.398057][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 298.409923][ T6548] device veth0_macvtap entered promiscuous mode [ 298.421458][ T6548] device veth1_macvtap entered promiscuous mode [ 298.440171][ T6548] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 298.447767][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 298.458001][ T1266] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 298.471117][ T6548] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 298.479181][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 298.487698][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 298.502742][ T6548] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.511984][ T6548] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.521770][ T6548] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.531645][ T6548] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 298.623363][ T1112] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 298.638801][ T1112] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 298.651703][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 298.691405][ T1112] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 298.702674][ T1112] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 298.713333][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 299.210073][ T25] Bluetooth: hci0: command 0x0409 tx timeout [ 300.524761][ T7046] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 300.536510][ T7046] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 300.544927][ T7046] CPU: 0 PID: 7046 Comm: syz-executor.0 Not tainted 5.15.0-rc6-syzkaller #0 [ 300.554231][ T7046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 300.564306][ T7046] RIP: 0010:sg_alloc_append_table_from_pages+0x821/0xdb0 [ 300.571414][ T7046] Code: 0c 24 48 8b 4c 24 48 48 39 c8 48 0f 46 c8 89 f0 4c 8d 3c c7 48 89 4c 24 30 48 b9 00 00 00 00 00 fc ff df 4c 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 24 05 00 00 4d 8b 3f 4c 89 e0 31 ff 83 e0 03 48 [ 300.591018][ T7046] RSP: 0018:ffffc90003f4fc48 EFLAGS: 00010202 [ 300.597080][ T7046] RAX: 0000000000000002 RBX: 0000000000000001 RCX: dffffc0000000000 [ 300.605039][ T7046] RDX: ffff88806e280000 RSI: 0000000000000000 RDI: 0000000000000010 [ 300.613098][ T7046] RBP: 00000000fffff000 R08: fffffffffffff000 R09: ffff888024fd1280 [ 300.621074][ T7046] R10: ffffffff83d81300 R11: 0000000000000000 R12: 0000000000000002 [ 300.629045][ T7046] R13: ffff888024fd1280 R14: 0000000000000000 R15: 0000000000000010 [ 300.637014][ T7046] FS: 00007f9cf67bd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 300.646132][ T7046] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 300.652710][ T7046] CR2: 00007f9cf67bd718 CR3: 000000001df51000 CR4: 00000000003506f0 [ 300.660676][ T7046] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 300.668641][ T7046] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 300.676611][ T7046] Call Trace: [ 300.679898][ T7046] sg_alloc_table_from_pages_segment+0xc9/0x260 [ 300.686161][ T7046] ? sg_alloc_append_table_from_pages+0xdb0/0xdb0 [ 300.692608][ T7046] ? rcu_read_lock_sched_held+0x3a/0x70 [ 300.698220][ T7046] get_sg_table.isra.0+0xbb/0x160 [ 300.703296][ T7046] begin_cpu_udmabuf+0x130/0x1d0 [ 300.708229][ T7046] ? map_udmabuf+0xa0/0xa0 [ 300.712646][ T7046] dma_buf_begin_cpu_access+0xfd/0x1d0 [ 300.718118][ T7046] dma_buf_ioctl+0x29a/0x380 [ 300.722701][ T7046] ? dma_buf_begin_cpu_access+0x1d0/0x1d0 [ 300.729985][ T7046] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 300.736286][ T7046] ? dma_buf_begin_cpu_access+0x1d0/0x1d0 [ 300.742009][ T7046] __x64_sys_ioctl+0x193/0x200 [ 300.746856][ T7046] do_syscall_64+0x35/0xb0 [ 300.751323][ T7046] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 300.757297][ T7046] RIP: 0033:0x7f9cf7089a39 [ 300.761730][ T7046] 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 [ 300.781333][ T7046] RSP: 002b:00007f9cf67bd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 300.789753][ T7046] RAX: ffffffffffffffda RBX: 00007f9cf718d0e0 RCX: 00007f9cf7089a39 [ 300.797719][ T7046] RDX: 0000000020000000 RSI: 0000000040086200 RDI: 0000000000000004 [ 300.805768][ T7046] RBP: 00007f9cf70e3c5f R08: 0000000000000000 R09: 0000000000000000 [ 300.813729][ T7046] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 300.821690][ T7046] R13: 00007ffc7c3bd87f R14: 00007f9cf67bd300 R15: 0000000000022000 [ 300.829675][ T7046] Modules linked in: [ 300.840457][ T7046] ---[ end trace b7a38d8ce7e3fa1c ]--- [ 300.845937][ T7046] RIP: 0010:sg_alloc_append_table_from_pages+0x821/0xdb0 [ 300.853707][ T7046] Code: 0c 24 48 8b 4c 24 48 48 39 c8 48 0f 46 c8 89 f0 4c 8d 3c c7 48 89 4c 24 30 48 b9 00 00 00 00 00 fc ff df 4c 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 24 05 00 00 4d 8b 3f 4c 89 e0 31 ff 83 e0 03 48 [ 300.874249][ T7046] RSP: 0018:ffffc90003f4fc48 EFLAGS: 00010202 [ 300.880488][ T7046] RAX: 0000000000000002 RBX: 0000000000000001 RCX: dffffc0000000000 [ 300.888679][ T7046] RDX: ffff88806e280000 RSI: 0000000000000000 RDI: 0000000000000010 [ 300.896719][ T7046] RBP: 00000000fffff000 R08: fffffffffffff000 R09: ffff888024fd1280 [ 300.905709][ T7046] R10: ffffffff83d81300 R11: 0000000000000000 R12: 0000000000000002 [ 300.914192][ T7046] R13: ffff888024fd1280 R14: 0000000000000000 R15: 0000000000000010 [ 300.922340][ T7046] FS: 00007f9cf67bd700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 300.931421][ T7046] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 300.938135][ T7046] CR2: 00007f249c03f078 CR3: 000000001df51000 CR4: 00000000003506e0 [ 300.946713][ T7046] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 300.954810][ T7046] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 300.963236][ T7046] Kernel panic - not syncing: Fatal exception [ 300.969557][ T7046] Kernel Offset: disabled [ 300.973872][ T7046] Rebooting in 86400 seconds..