Warning: Permanently added '10.128.10.7' (ECDSA) to the list of known hosts. 2021/08/14 15:37:38 parsed 1 programs 2021/08/14 15:37:38 executed programs: 0 syzkaller login: [ 1585.141521][ T8467] chnl_net:caif_netlink_parms(): no params data found [ 1585.197230][ T8467] bridge0: port 1(bridge_slave_0) entered blocking state [ 1585.206210][ T8467] bridge0: port 1(bridge_slave_0) entered disabled state [ 1585.214898][ T8467] device bridge_slave_0 entered promiscuous mode [ 1585.224037][ T8467] bridge0: port 2(bridge_slave_1) entered blocking state [ 1585.231351][ T8467] bridge0: port 2(bridge_slave_1) entered disabled state [ 1585.239451][ T8467] device bridge_slave_1 entered promiscuous mode [ 1585.256402][ T8467] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1585.267163][ T8467] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1585.286038][ T8467] team0: Port device team_slave_0 added [ 1585.293366][ T8467] team0: Port device team_slave_1 added [ 1585.307389][ T8467] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1585.314823][ T8467] 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. [ 1585.341616][ T8467] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1585.353945][ T8467] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1585.361136][ T8467] 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. [ 1585.387273][ T8467] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1585.409544][ T8467] device hsr_slave_0 entered promiscuous mode [ 1585.416049][ T8467] device hsr_slave_1 entered promiscuous mode [ 1585.492669][ T8467] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1585.502513][ T8467] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1585.511266][ T8467] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1585.520259][ T8467] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1585.538032][ T8467] bridge0: port 2(bridge_slave_1) entered blocking state [ 1585.545388][ T8467] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1585.553004][ T8467] bridge0: port 1(bridge_slave_0) entered blocking state [ 1585.560093][ T8467] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1585.594384][ T8467] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1585.605961][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1585.616715][ T8442] bridge0: port 1(bridge_slave_0) entered disabled state [ 1585.625087][ T8442] bridge0: port 2(bridge_slave_1) entered disabled state [ 1585.633387][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1585.645308][ T8467] 8021q: adding VLAN 0 to HW filter on device team0 [ 1585.655373][ T2960] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1585.664866][ T2960] bridge0: port 1(bridge_slave_0) entered blocking state [ 1585.671934][ T2960] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1585.682639][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1585.691186][ T8689] bridge0: port 2(bridge_slave_1) entered blocking state [ 1585.698381][ T8689] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1585.719831][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1585.728194][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1585.737043][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1585.748211][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1585.756655][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1585.767685][ T8467] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1585.782895][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1585.790279][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1585.802787][ T8467] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1585.818349][ T8689] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1585.837169][ T8467] device veth0_vlan entered promiscuous mode [ 1585.845645][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1585.854352][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1585.862389][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1585.873894][ T8467] device veth1_vlan entered promiscuous mode [ 1585.891215][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1585.899684][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1585.907547][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1585.917423][ T8467] device veth0_macvtap entered promiscuous mode [ 1585.927087][ T8467] device veth1_macvtap entered promiscuous mode [ 1585.943180][ T8467] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1585.951078][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1585.961201][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1585.972498][ T8467] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1585.980168][ T8442] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1585.991411][ T8467] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1586.000761][ T8467] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1586.009700][ T8467] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1586.018382][ T8467] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1586.082569][ T8269] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1586.094464][ T8269] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1586.120113][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1586.129718][ T8471] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1586.137610][ T8471] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1586.147558][ T8691] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1587.060842][ T8442] Bluetooth: hci0: command 0x0409 tx timeout 2021/08/14 15:37:43 executed programs: 100 [ 1589.129031][ T8442] Bluetooth: hci0: command 0x041b tx timeout [ 1591.209411][ T8689] Bluetooth: hci0: command 0x040f tx timeout [ 1593.296332][ T8608] Bluetooth: hci0: command 0x0419 tx timeout 2021/08/14 15:37:48 executed programs: 295 [ 1595.386672][ T8608] Bluetooth: hci0: command 0x0405 tx timeout 2021/08/14 15:37:53 executed programs: 489 2021/08/14 15:37:58 executed programs: 737 [ 1606.570789][ T3262] ieee802154 phy0 wpan0: encryption failed: -22 [ 1606.577441][ T3262] ieee802154 phy1 wpan1: encryption failed: -22 2021/08/14 15:38:03 executed programs: 1119 2021/08/14 15:38:08 executed programs: 1519 2021/08/14 15:38:13 executed programs: 1896 2021/08/14 15:38:18 executed programs: 2287 2021/08/14 15:38:23 executed programs: 2676 [ 1628.979877][ T8689] ================================================================== [ 1628.988476][ T8689] BUG: KASAN: use-after-free in __lock_acquire+0x3d86/0x54a0 [ 1628.995859][ T8689] Read of size 8 at addr ffff88802871b0a0 by task kworker/1:4/8689 [ 1629.003730][ T8689] [ 1629.006036][ T8689] CPU: 1 PID: 8689 Comm: kworker/1:4 Not tainted 5.14.0-rc5-syzkaller #0 [ 1629.014428][ T8689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1629.024466][ T8689] Workqueue: events l2cap_chan_timeout [ 1629.029919][ T8689] Call Trace: [ 1629.033181][ T8689] dump_stack_lvl+0xcd/0x134 [ 1629.037758][ T8689] print_address_description.constprop.0.cold+0x6c/0x309 [ 1629.044772][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.049782][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.054794][ T8689] kasan_report.cold+0x83/0xdf [ 1629.059552][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.064565][ T8689] __lock_acquire+0x3d86/0x54a0 [ 1629.069404][ T8689] ? call_rcu_zapped+0xb0/0xb0 [ 1629.074158][ T8689] ? mark_lock+0xef/0x17b0 [ 1629.078557][ T8689] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 1629.084350][ T8689] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1629.090531][ T8689] ? lock_chain_count+0x20/0x20 [ 1629.095372][ T8689] lock_acquire+0x1ab/0x510 [ 1629.099857][ T8689] ? lock_sock_nested+0x40/0x120 [ 1629.104785][ T8689] ? lock_release+0x720/0x720 [ 1629.109441][ T8689] ? del_timer+0xc5/0x110 [ 1629.113760][ T8689] _raw_spin_lock_bh+0x2f/0x40 [ 1629.118513][ T8689] ? lock_sock_nested+0x40/0x120 [ 1629.123435][ T8689] lock_sock_nested+0x40/0x120 [ 1629.128188][ T8689] l2cap_sock_teardown_cb+0xa1/0x660 [ 1629.133464][ T8689] l2cap_chan_del+0xbc/0xa80 [ 1629.138040][ T8689] l2cap_chan_close+0x1b9/0xaf0 [ 1629.142877][ T8689] ? l2cap_rx+0x1fb0/0x1fb0 [ 1629.147364][ T8689] ? lock_release+0x720/0x720 [ 1629.152021][ T8689] ? lock_downgrade+0x6e0/0x6e0 [ 1629.156860][ T8689] l2cap_chan_timeout+0x17e/0x2f0 [ 1629.161870][ T8689] process_one_work+0x98d/0x1630 [ 1629.166798][ T8689] ? pwq_dec_nr_in_flight+0x320/0x320 [ 1629.172158][ T8689] ? rwlock_bug.part.0+0x90/0x90 [ 1629.177251][ T8689] ? _raw_spin_lock_irq+0x41/0x50 [ 1629.182265][ T8689] worker_thread+0x658/0x11f0 [ 1629.186933][ T8689] ? process_one_work+0x1630/0x1630 [ 1629.192117][ T8689] kthread+0x3e5/0x4d0 [ 1629.196171][ T8689] ? set_kthread_struct+0x130/0x130 [ 1629.201356][ T8689] ret_from_fork+0x1f/0x30 [ 1629.205761][ T8689] [ 1629.208067][ T8689] Allocated by task 15546: [ 1629.212457][ T8689] kasan_save_stack+0x1b/0x40 [ 1629.217119][ T8689] __kasan_kmalloc+0x9b/0xd0 [ 1629.221692][ T8689] sk_prot_alloc+0x110/0x290 [ 1629.226266][ T8689] sk_alloc+0x32/0xbc0 [ 1629.230324][ T8689] l2cap_sock_alloc.constprop.0+0x31/0x230 [ 1629.236116][ T8689] l2cap_sock_create+0x123/0x1f0 [ 1629.241041][ T8689] bt_sock_create+0x17c/0x340 [ 1629.245699][ T8689] __sock_create+0x353/0x790 [ 1629.250272][ T8689] __sys_socket+0xef/0x200 [ 1629.254669][ T8689] __x64_sys_socket+0x6f/0xb0 [ 1629.259412][ T8689] do_syscall_64+0x35/0xb0 [ 1629.263813][ T8689] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1629.269689][ T8689] [ 1629.271989][ T8689] Freed by task 15545: [ 1629.276031][ T8689] kasan_save_stack+0x1b/0x40 [ 1629.280780][ T8689] kasan_set_track+0x1c/0x30 [ 1629.285354][ T8689] kasan_set_free_info+0x20/0x30 [ 1629.290276][ T8689] __kasan_slab_free+0xfb/0x130 [ 1629.295110][ T8689] slab_free_freelist_hook+0xdf/0x240 [ 1629.300467][ T8689] kfree+0xe4/0x540 [ 1629.304256][ T8689] __sk_destruct+0x6a8/0x900 [ 1629.308830][ T8689] sk_destruct+0xbd/0xe0 [ 1629.313058][ T8689] __sk_free+0xef/0x3d0 [ 1629.317197][ T8689] sk_free+0x78/0xa0 [ 1629.321078][ T8689] l2cap_sock_kill+0x203/0x240 [ 1629.325828][ T8689] l2cap_sock_release+0x184/0x200 [ 1629.330837][ T8689] __sock_release+0xcd/0x280 [ 1629.335407][ T8689] sock_close+0x18/0x20 [ 1629.339543][ T8689] __fput+0x288/0x920 [ 1629.343508][ T8689] task_work_run+0xdd/0x1a0 [ 1629.347990][ T8689] exit_to_user_mode_prepare+0x27e/0x290 [ 1629.353607][ T8689] syscall_exit_to_user_mode+0x19/0x60 [ 1629.359061][ T8689] do_syscall_64+0x42/0xb0 [ 1629.363468][ T8689] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1629.369349][ T8689] [ 1629.371654][ T8689] The buggy address belongs to the object at ffff88802871b000 [ 1629.371654][ T8689] which belongs to the cache kmalloc-2k of size 2048 [ 1629.385693][ T8689] The buggy address is located 160 bytes inside of [ 1629.385693][ T8689] 2048-byte region [ffff88802871b000, ffff88802871b800) [ 1629.399049][ T8689] The buggy address belongs to the page: [ 1629.404664][ T8689] page:ffffea0000a1c600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28718 [ 1629.414797][ T8689] head:ffffea0000a1c600 order:3 compound_mapcount:0 compound_pincount:0 [ 1629.423098][ T8689] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 1629.431066][ T8689] raw: 00fff00000010200 0000000000000000 0000000700000001 ffff888010842000 [ 1629.439631][ T8689] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 1629.448188][ T8689] page dumped because: kasan: bad access detected [ 1629.454574][ T8689] page_owner tracks the page as allocated [ 1629.460262][ T8689] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x52a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 9035, ts 1588631382460, free_ts 1588618555934 [ 1629.477782][ T8689] get_page_from_freelist+0xa72/0x2f80 [ 1629.483406][ T8689] __alloc_pages+0x1b2/0x500 [ 1629.487976][ T8689] alloc_pages+0x18c/0x2a0 [ 1629.492377][ T8689] allocate_slab+0x32e/0x4b0 [ 1629.496948][ T8689] ___slab_alloc+0x4ba/0x820 [ 1629.501521][ T8689] __slab_alloc.constprop.0+0xa7/0xf0 [ 1629.506874][ T8689] kmem_cache_alloc_trace+0x30f/0x3c0 [ 1629.512228][ T8689] l2cap_chan_create+0x40/0x570 [ 1629.517064][ T8689] l2cap_sock_alloc.constprop.0+0x185/0x230 [ 1629.523113][ T8689] l2cap_sock_create+0x123/0x1f0 [ 1629.528036][ T8689] bt_sock_create+0x17c/0x340 [ 1629.532694][ T8689] __sock_create+0x353/0x790 [ 1629.537270][ T8689] __sys_socket+0xef/0x200 [ 1629.541672][ T8689] __x64_sys_socket+0x6f/0xb0 [ 1629.546332][ T8689] do_syscall_64+0x35/0xb0 [ 1629.550733][ T8689] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1629.556608][ T8689] page last free stack trace: [ 1629.561255][ T8689] free_pcp_prepare+0x2c5/0x780 [ 1629.566090][ T8689] free_unref_page+0x19/0x690 [ 1629.570751][ T8689] unfreeze_partials+0x17c/0x1d0 [ 1629.575671][ T8689] put_cpu_partial+0x13d/0x230 [ 1629.580415][ T8689] qlist_free_all+0x5a/0xc0 [ 1629.584904][ T8689] kasan_quarantine_reduce+0x180/0x200 [ 1629.590351][ T8689] __kasan_slab_alloc+0x8e/0xa0 [ 1629.595184][ T8689] kmem_cache_alloc+0x285/0x4a0 [ 1629.600111][ T8689] getname_flags.part.0+0x50/0x4f0 [ 1629.605205][ T8689] user_path_at_empty+0xa1/0x100 [ 1629.610122][ T8689] __x64_sys_umount+0xf8/0x180 [ 1629.614865][ T8689] do_syscall_64+0x35/0xb0 [ 1629.619263][ T8689] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1629.625137][ T8689] [ 1629.627440][ T8689] Memory state around the buggy address: [ 1629.633046][ T8689] ffff88802871af80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 1629.641086][ T8689] ffff88802871b000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1629.649125][ T8689] >ffff88802871b080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1629.657163][ T8689] ^ [ 1629.662248][ T8689] ffff88802871b100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1629.670287][ T8689] ffff88802871b180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 1629.678329][ T8689] ================================================================== [ 1629.686536][ T8689] Disabling lock debugging due to kernel taint [ 1629.692659][ T8689] Kernel panic - not syncing: panic_on_warn set ... [ 1629.699225][ T8689] CPU: 1 PID: 8689 Comm: kworker/1:4 Tainted: G B 5.14.0-rc5-syzkaller #0 [ 1629.709009][ T8689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1629.719222][ T8689] Workqueue: events l2cap_chan_timeout [ 1629.724666][ T8689] Call Trace: [ 1629.727925][ T8689] dump_stack_lvl+0xcd/0x134 [ 1629.732504][ T8689] panic+0x306/0x73d [ 1629.736380][ T8689] ? __warn_printk+0xf3/0xf3 [ 1629.740950][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.745958][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.750965][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.756058][ T8689] end_report.cold+0x5a/0x5a [ 1629.760635][ T8689] kasan_report.cold+0x71/0xdf [ 1629.765404][ T8689] ? __lock_acquire+0x3d86/0x54a0 [ 1629.770427][ T8689] __lock_acquire+0x3d86/0x54a0 [ 1629.775263][ T8689] ? call_rcu_zapped+0xb0/0xb0 [ 1629.780014][ T8689] ? mark_lock+0xef/0x17b0 [ 1629.784410][ T8689] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 1629.790201][ T8689] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1629.796164][ T8689] ? lock_chain_count+0x20/0x20 [ 1629.800997][ T8689] lock_acquire+0x1ab/0x510 [ 1629.805486][ T8689] ? lock_sock_nested+0x40/0x120 [ 1629.810410][ T8689] ? lock_release+0x720/0x720 [ 1629.815067][ T8689] ? del_timer+0xc5/0x110 [ 1629.819383][ T8689] _raw_spin_lock_bh+0x2f/0x40 [ 1629.824132][ T8689] ? lock_sock_nested+0x40/0x120 [ 1629.829056][ T8689] lock_sock_nested+0x40/0x120 [ 1629.833805][ T8689] l2cap_sock_teardown_cb+0xa1/0x660 [ 1629.839079][ T8689] l2cap_chan_del+0xbc/0xa80 [ 1629.843651][ T8689] l2cap_chan_close+0x1b9/0xaf0 [ 1629.848484][ T8689] ? l2cap_rx+0x1fb0/0x1fb0 [ 1629.852968][ T8689] ? lock_release+0x720/0x720 [ 1629.857626][ T8689] ? lock_downgrade+0x6e0/0x6e0 [ 1629.862459][ T8689] l2cap_chan_timeout+0x17e/0x2f0 [ 1629.867468][ T8689] process_one_work+0x98d/0x1630 [ 1629.872394][ T8689] ? pwq_dec_nr_in_flight+0x320/0x320 [ 1629.877751][ T8689] ? rwlock_bug.part.0+0x90/0x90 [ 1629.882669][ T8689] ? _raw_spin_lock_irq+0x41/0x50 [ 1629.887680][ T8689] worker_thread+0x658/0x11f0 [ 1629.892345][ T8689] ? process_one_work+0x1630/0x1630 [ 1629.897528][ T8689] kthread+0x3e5/0x4d0 [ 1629.901582][ T8689] ? set_kthread_struct+0x130/0x130 [ 1629.906765][ T8689] ret_from_fork+0x1f/0x30 [ 1629.919741][ T8689] Kernel Offset: disabled [ 1629.924139][ T8689] Rebooting in 86400 seconds..