Warning: Permanently added '10.128.0.79' (ECDSA) to the list of known hosts. 2021/10/01 11:42:52 parsed 1 programs 2021/10/01 11:42:53 executed programs: 0 syzkaller login: [ 414.474508][ T6560] chnl_net:caif_netlink_parms(): no params data found [ 414.545804][ T6560] bridge0: port 1(bridge_slave_0) entered blocking state [ 414.553808][ T6560] bridge0: port 1(bridge_slave_0) entered disabled state [ 414.562990][ T6560] device bridge_slave_0 entered promiscuous mode [ 414.574134][ T6560] bridge0: port 2(bridge_slave_1) entered blocking state [ 414.582846][ T6560] bridge0: port 2(bridge_slave_1) entered disabled state [ 414.592355][ T6560] device bridge_slave_1 entered promiscuous mode [ 414.623699][ T6560] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 414.634768][ T6560] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 414.668866][ T6560] team0: Port device team_slave_0 added [ 414.676346][ T6560] team0: Port device team_slave_1 added [ 414.704166][ T6560] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 414.711191][ T6560] 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. [ 414.738019][ T6560] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 414.752162][ T6560] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 414.759106][ T6560] 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. [ 414.786728][ T6560] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 414.825472][ T6560] device hsr_slave_0 entered promiscuous mode [ 414.832552][ T6560] device hsr_slave_1 entered promiscuous mode [ 414.956377][ T6560] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 414.966674][ T6560] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 414.977469][ T6560] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 414.987844][ T6560] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 415.010625][ T6560] bridge0: port 2(bridge_slave_1) entered blocking state [ 415.017904][ T6560] bridge0: port 2(bridge_slave_1) entered forwarding state [ 415.026042][ T6560] bridge0: port 1(bridge_slave_0) entered blocking state [ 415.033258][ T6560] bridge0: port 1(bridge_slave_0) entered forwarding state [ 415.083639][ T6560] 8021q: adding VLAN 0 to HW filter on device bond0 [ 415.097134][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 415.109015][ T25] bridge0: port 1(bridge_slave_0) entered disabled state [ 415.118794][ T25] bridge0: port 2(bridge_slave_1) entered disabled state [ 415.127016][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 415.141853][ T6560] 8021q: adding VLAN 0 to HW filter on device team0 [ 415.154678][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 415.163243][ T6884] bridge0: port 1(bridge_slave_0) entered blocking state [ 415.170378][ T6884] bridge0: port 1(bridge_slave_0) entered forwarding state [ 415.191457][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 415.199832][ T6884] bridge0: port 2(bridge_slave_1) entered blocking state [ 415.207252][ T6884] bridge0: port 2(bridge_slave_1) entered forwarding state [ 415.216048][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 415.227480][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 415.235949][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 415.248525][ T6724] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 415.261593][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 415.274887][ T6560] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 415.294251][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 415.302402][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 415.316517][ T6560] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 415.336127][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 415.356460][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 415.365635][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 415.374335][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 415.386439][ T6560] device veth0_vlan entered promiscuous mode [ 415.397802][ T6560] device veth1_vlan entered promiscuous mode [ 415.419212][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 415.427984][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 415.437210][ T25] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 415.450071][ T6560] device veth0_macvtap entered promiscuous mode [ 415.462263][ T6560] device veth1_macvtap entered promiscuous mode [ 415.482645][ T6560] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 415.490233][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 415.500220][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 415.513507][ T6560] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 415.521044][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 415.529662][ T6884] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 415.542904][ T6560] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 415.552032][ T6560] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 415.561496][ T6560] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 415.570297][ T6560] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 415.669163][ T1138] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 415.696509][ T1138] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 415.714306][ T6724] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 415.727066][ T1138] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 415.737797][ T1138] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 415.746948][ T6724] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 416.292231][ T25] Bluetooth: hci0: command 0x0409 tx timeout 2021/10/01 11:42:58 executed programs: 3 [ 418.372702][ T6884] Bluetooth: hci0: command 0x041b tx timeout [ 420.461142][ T6884] Bluetooth: hci0: command 0x040f tx timeout [ 422.540464][ T6295] Bluetooth: hci0: command 0x0419 tx timeout 2021/10/01 11:43:03 executed programs: 9 [ 424.610404][ T6884] Bluetooth: hci0: command 0x0405 tx timeout 2021/10/01 11:43:08 executed programs: 15 2021/10/01 11:43:13 executed programs: 21 2021/10/01 11:43:18 executed programs: 27 [ 439.651314][ T1359] ieee802154 phy0 wpan0: encryption failed: -22 [ 439.657909][ T1359] ieee802154 phy1 wpan1: encryption failed: -22 2021/10/01 11:43:23 executed programs: 33 2021/10/01 11:43:29 executed programs: 39 2021/10/01 11:43:34 executed programs: 45 [ 456.930497][ T6884] ================================================================== [ 456.938595][ T6884] BUG: KASAN: use-after-free in __lock_acquire+0x3d86/0x54a0 [ 456.946083][ T6884] Read of size 8 at addr ffff88801d81c120 by task kworker/1:0/6884 [ 456.953980][ T6884] [ 456.956306][ T6884] CPU: 1 PID: 6884 Comm: kworker/1:0 Not tainted 5.15.0-rc3-syzkaller #0 [ 456.964807][ T6884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 456.974857][ T6884] Workqueue: events l2cap_chan_timeout [ 456.980379][ T6884] Call Trace: [ 456.983650][ T6884] dump_stack_lvl+0xcd/0x134 [ 456.988275][ T6884] print_address_description.constprop.0.cold+0x6c/0x309 [ 456.995305][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.000323][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.005341][ T6884] kasan_report.cold+0x83/0xdf [ 457.010099][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.015122][ T6884] __lock_acquire+0x3d86/0x54a0 [ 457.019972][ T6884] ? mark_lock+0xef/0x17b0 [ 457.024386][ T6884] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 457.030362][ T6884] ? debug_object_assert_init+0x246/0x2e0 [ 457.036120][ T6884] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 457.042099][ T6884] lock_acquire+0x1ab/0x510 [ 457.046615][ T6884] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 457.052076][ T6884] ? lock_release+0x720/0x720 [ 457.056747][ T6884] ? mark_held_locks+0x9f/0xe0 [ 457.061508][ T6884] ? cancel_delayed_work+0x2bd/0x340 [ 457.066840][ T6884] lock_sock_nested+0x2f/0xf0 [ 457.071658][ T6884] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 457.077111][ T6884] l2cap_sock_teardown_cb+0xa1/0x660 [ 457.082395][ T6884] ? __mutex_lock+0x21c/0x12f0 [ 457.087156][ T6884] l2cap_chan_del+0xbc/0xa80 [ 457.091743][ T6884] l2cap_chan_close+0x1b9/0xaf0 [ 457.096601][ T6884] ? l2cap_rx+0x1fb0/0x1fb0 [ 457.101447][ T6884] ? lock_release+0x720/0x720 [ 457.106118][ T6884] ? lock_downgrade+0x6e0/0x6e0 [ 457.110962][ T6884] ? do_raw_spin_lock+0x120/0x2b0 [ 457.115985][ T6884] l2cap_chan_timeout+0x17e/0x2f0 [ 457.121010][ T6884] process_one_work+0x9bf/0x16b0 [ 457.125970][ T6884] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 457.131342][ T6884] ? rwlock_bug.part.0+0x90/0x90 [ 457.136297][ T6884] ? _raw_spin_lock_irq+0x41/0x50 [ 457.141322][ T6884] worker_thread+0x658/0x11f0 [ 457.145997][ T6884] ? process_one_work+0x16b0/0x16b0 [ 457.151207][ T6884] kthread+0x3e5/0x4d0 [ 457.155352][ T6884] ? set_kthread_struct+0x130/0x130 [ 457.160993][ T6884] ret_from_fork+0x1f/0x30 [ 457.165442][ T6884] [ 457.167755][ T6884] Allocated by task 6919: [ 457.172165][ T6884] kasan_save_stack+0x1b/0x40 [ 457.176923][ T6884] __kasan_kmalloc+0xa4/0xd0 [ 457.181514][ T6884] sk_prot_alloc+0x110/0x290 [ 457.186164][ T6884] sk_alloc+0x30/0xa60 [ 457.190256][ T6884] l2cap_sock_alloc.constprop.0+0x31/0x230 [ 457.196084][ T6884] l2cap_sock_create+0x123/0x1f0 [ 457.201021][ T6884] bt_sock_create+0x17c/0x340 [ 457.205906][ T6884] __sock_create+0x353/0x790 [ 457.210666][ T6884] __sys_socket+0xef/0x200 [ 457.215077][ T6884] __x64_sys_socket+0x6f/0xb0 [ 457.219747][ T6884] do_syscall_64+0x35/0xb0 [ 457.224222][ T6884] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 457.230111][ T6884] [ 457.232426][ T6884] Freed by task 6919: [ 457.236565][ T6884] kasan_save_stack+0x1b/0x40 [ 457.241242][ T6884] kasan_set_track+0x1c/0x30 [ 457.245915][ T6884] kasan_set_free_info+0x20/0x30 [ 457.250846][ T6884] __kasan_slab_free+0xff/0x130 [ 457.255691][ T6884] slab_free_freelist_hook+0x81/0x190 [ 457.261058][ T6884] kfree+0xe4/0x530 [ 457.264861][ T6884] __sk_destruct+0x6a8/0x900 [ 457.269454][ T6884] sk_destruct+0xbd/0xe0 [ 457.273692][ T6884] __sk_free+0xef/0x3d0 [ 457.277843][ T6884] sk_free+0x78/0xa0 [ 457.281734][ T6884] l2cap_sock_kill+0x203/0x240 [ 457.286498][ T6884] l2cap_sock_release+0x184/0x200 [ 457.291518][ T6884] __sock_release+0xcd/0x280 [ 457.296185][ T6884] sock_close+0x18/0x20 [ 457.300334][ T6884] __fput+0x288/0x9f0 [ 457.304402][ T6884] task_work_run+0xdd/0x1a0 [ 457.308995][ T6884] get_signal+0x1b35/0x2160 [ 457.313523][ T6884] arch_do_signal_or_restart+0x2a9/0x1c40 [ 457.319280][ T6884] exit_to_user_mode_prepare+0x17d/0x290 [ 457.324950][ T6884] syscall_exit_to_user_mode+0x19/0x60 [ 457.330406][ T6884] do_syscall_64+0x42/0xb0 [ 457.334820][ T6884] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 457.340794][ T6884] [ 457.343121][ T6884] The buggy address belongs to the object at ffff88801d81c000 [ 457.343121][ T6884] which belongs to the cache kmalloc-2k of size 2048 [ 457.357181][ T6884] The buggy address is located 288 bytes inside of [ 457.357181][ T6884] 2048-byte region [ffff88801d81c000, ffff88801d81c800) [ 457.370539][ T6884] The buggy address belongs to the page: [ 457.376154][ T6884] page:ffffea0000760600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d818 [ 457.386296][ T6884] head:ffffea0000760600 order:3 compound_mapcount:0 compound_pincount:0 [ 457.394608][ T6884] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 457.402588][ T6884] raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888010c42000 [ 457.411172][ T6884] raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 [ 457.419747][ T6884] page dumped because: kasan: bad access detected [ 457.426154][ T6884] page_owner tracks the page as allocated [ 457.431859][ T6884] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 25, ts 416612617258, free_ts 416281153188 [ 457.450982][ T6884] get_page_from_freelist+0xa72/0x2f80 [ 457.456477][ T6884] __alloc_pages+0x1b2/0x500 [ 457.461061][ T6884] alloc_pages+0x1a7/0x300 [ 457.465558][ T6884] new_slab+0x319/0x490 [ 457.469708][ T6884] ___slab_alloc+0x921/0xfe0 [ 457.474404][ T6884] __slab_alloc.constprop.0+0x4d/0xa0 [ 457.479791][ T6884] __kmalloc_node_track_caller+0x2d2/0x340 [ 457.485719][ T6884] __alloc_skb+0xde/0x340 [ 457.490097][ T6884] alloc_skb_with_frags+0x93/0x620 [ 457.495218][ T6884] sock_alloc_send_pskb+0x783/0x910 [ 457.500520][ T6884] mld_newpack+0x1df/0x770 [ 457.504993][ T6884] add_grhead+0x265/0x330 [ 457.509318][ T6884] add_grec+0x1053/0x14e0 [ 457.513642][ T6884] mld_send_initial_cr.part.0+0xf6/0x230 [ 457.519304][ T6884] mld_dad_work+0x1d3/0x690 [ 457.523805][ T6884] process_one_work+0x9bf/0x16b0 [ 457.528741][ T6884] page last free stack trace: [ 457.533408][ T6884] free_pcp_prepare+0x2c5/0x780 [ 457.538258][ T6884] free_unref_page+0x19/0x690 [ 457.542940][ T6884] __unfreeze_partials+0x340/0x360 [ 457.548049][ T6884] qlist_free_all+0x5a/0xc0 [ 457.552612][ T6884] kasan_quarantine_reduce+0x180/0x200 [ 457.558076][ T6884] __kasan_slab_alloc+0x95/0xb0 [ 457.562939][ T6884] kmem_cache_alloc_trace+0x1f1/0x2b0 [ 457.568320][ T6884] nsim_fib_event_work+0xe43/0x2490 [ 457.574177][ T6884] process_one_work+0x9bf/0x16b0 [ 457.579112][ T6884] worker_thread+0x85c/0x11f0 [ 457.583782][ T6884] kthread+0x3e5/0x4d0 [ 457.587857][ T6884] ret_from_fork+0x1f/0x30 [ 457.592274][ T6884] [ 457.594588][ T6884] Memory state around the buggy address: [ 457.600296][ T6884] ffff88801d81c000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 457.608367][ T6884] ffff88801d81c080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 457.616441][ T6884] >ffff88801d81c100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 457.624572][ T6884] ^ [ 457.629674][ T6884] ffff88801d81c180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 457.637722][ T6884] ffff88801d81c200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 457.646132][ T6884] ================================================================== [ 457.654185][ T6884] Disabling lock debugging due to kernel taint [ 457.660332][ T6884] Kernel panic - not syncing: panic_on_warn set ... [ 457.666988][ T6884] CPU: 1 PID: 6884 Comm: kworker/1:0 Tainted: G B 5.15.0-rc3-syzkaller #0 [ 457.676779][ T6884] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 457.686823][ T6884] Workqueue: events l2cap_chan_timeout [ 457.692279][ T6884] Call Trace: [ 457.695548][ T6884] dump_stack_lvl+0xcd/0x134 [ 457.700225][ T6884] panic+0x2b0/0x6dd [ 457.704150][ T6884] ? __warn_printk+0xf3/0xf3 [ 457.708736][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.713763][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.718779][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.723881][ T6884] end_report.cold+0x63/0x6f [ 457.728553][ T6884] kasan_report.cold+0x71/0xdf [ 457.733309][ T6884] ? __lock_acquire+0x3d86/0x54a0 [ 457.738482][ T6884] __lock_acquire+0x3d86/0x54a0 [ 457.743345][ T6884] ? mark_lock+0xef/0x17b0 [ 457.747767][ T6884] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 457.753577][ T6884] ? debug_object_assert_init+0x246/0x2e0 [ 457.760429][ T6884] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 457.766418][ T6884] lock_acquire+0x1ab/0x510 [ 457.770922][ T6884] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 457.776380][ T6884] ? lock_release+0x720/0x720 [ 457.781052][ T6884] ? mark_held_locks+0x9f/0xe0 [ 457.785898][ T6884] ? cancel_delayed_work+0x2bd/0x340 [ 457.791192][ T6884] lock_sock_nested+0x2f/0xf0 [ 457.795879][ T6884] ? l2cap_sock_teardown_cb+0xa1/0x660 [ 457.801357][ T6884] l2cap_sock_teardown_cb+0xa1/0x660 [ 457.806673][ T6884] ? __mutex_lock+0x21c/0x12f0 [ 457.811444][ T6884] l2cap_chan_del+0xbc/0xa80 [ 457.816126][ T6884] l2cap_chan_close+0x1b9/0xaf0 [ 457.820981][ T6884] ? l2cap_rx+0x1fb0/0x1fb0 [ 457.825481][ T6884] ? lock_release+0x720/0x720 [ 457.830160][ T6884] ? lock_downgrade+0x6e0/0x6e0 [ 457.835012][ T6884] ? do_raw_spin_lock+0x120/0x2b0 [ 457.840051][ T6884] l2cap_chan_timeout+0x17e/0x2f0 [ 457.845078][ T6884] process_one_work+0x9bf/0x16b0 [ 457.850019][ T6884] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 457.855447][ T6884] ? rwlock_bug.part.0+0x90/0x90 [ 457.860480][ T6884] ? _raw_spin_lock_irq+0x41/0x50 [ 457.865515][ T6884] worker_thread+0x658/0x11f0 [ 457.870200][ T6884] ? process_one_work+0x16b0/0x16b0 [ 457.875411][ T6884] kthread+0x3e5/0x4d0 [ 457.879487][ T6884] ? set_kthread_struct+0x130/0x130 [ 457.884685][ T6884] ret_from_fork+0x1f/0x30 [ 457.889169][ T6884] Kernel Offset: disabled [ 457.893486][ T6884] Rebooting in 86400 seconds..