Warning: Permanently added '10.128.0.135' (ECDSA) to the list of known hosts. 2021/02/28 14:25:42 parsed 1 programs 2021/02/28 14:25:43 executed programs: 0 syzkaller login: [ 69.117144][ T8372] IPVS: ftp: loaded support on port[0] = 21 [ 69.290345][ T8372] chnl_net:caif_netlink_parms(): no params data found [ 69.337804][ T8372] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.345935][ T8372] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.354382][ T8372] device bridge_slave_0 entered promiscuous mode [ 69.363956][ T8372] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.371162][ T8372] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.379412][ T8372] device bridge_slave_1 entered promiscuous mode [ 69.398463][ T8372] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.409127][ T8372] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.431743][ T8372] team0: Port device team_slave_0 added [ 69.438764][ T8372] team0: Port device team_slave_1 added [ 69.455476][ T8372] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 69.463932][ T8372] 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. [ 69.490471][ T8372] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 69.504017][ T8372] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 69.510978][ T8372] 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. [ 69.537923][ T8372] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 69.563313][ T8372] device hsr_slave_0 entered promiscuous mode [ 69.569868][ T8372] device hsr_slave_1 entered promiscuous mode [ 69.663013][ T8372] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 69.673723][ T8372] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 69.683745][ T8372] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 69.693225][ T8372] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 69.716845][ T8372] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.724026][ T8372] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.731675][ T8372] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.738728][ T8372] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.783813][ T8372] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.799959][ T2932] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.814254][ T2932] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.823345][ T2932] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.831074][ T2932] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.845531][ T8372] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.857966][ T3297] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.867372][ T3297] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.874636][ T3297] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.893044][ T2932] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.902500][ T2932] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.909679][ T2932] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.936491][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.945903][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.963602][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.974332][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.991922][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.000944][ T8372] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.018479][ T3297] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.026968][ T3297] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.040985][ T8372] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.059063][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.078302][ T8591] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.087048][ T8591] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.095843][ T8591] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.106830][ T8372] device veth0_vlan entered promiscuous mode [ 70.118322][ T8372] device veth1_vlan entered promiscuous mode [ 70.141053][ T8372] device veth0_macvtap entered promiscuous mode [ 70.148865][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.158175][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.166697][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 70.175987][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 70.187408][ T8372] device veth1_macvtap entered promiscuous mode [ 70.204844][ T8372] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.214385][ T3147] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.226637][ T8372] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.235424][ T8591] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.246187][ T8372] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.255869][ T8372] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.265568][ T8372] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.274680][ T8372] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.366761][ T560] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.375233][ T560] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.398733][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.419584][ T78] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.428345][ T78] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.437576][ T2932] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.053622][ T3229] ieee802154 phy0 wpan0: encryption failed: -22 [ 71.060193][ T3229] ieee802154 phy1 wpan1: encryption failed: -22 [ 71.132939][ T2932] Bluetooth: hci0: command 0x0409 tx timeout 2021/02/28 14:25:48 executed programs: 55 [ 73.212272][ T35] Bluetooth: hci0: command 0x041b tx timeout [ 75.291210][ T3297] Bluetooth: hci0: command 0x040f tx timeout [ 77.373331][ T3297] Bluetooth: hci0: command 0x0419 tx timeout 2021/02/28 14:25:53 executed programs: 181 2021/02/28 14:25:58 executed programs: 301 [ 84.310705][T10211] ================================================================== [ 84.318985][T10211] BUG: KASAN: use-after-free in __cpuhp_state_remove_instance+0x58b/0x5b0 [ 84.327620][T10211] Read of size 8 at addr ffff88801ca97898 by task syz-executor.0/10211 [ 84.335937][T10211] [ 84.338244][T10211] CPU: 1 PID: 10211 Comm: syz-executor.0 Not tainted 5.11.0-syzkaller #0 [ 84.346694][T10211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.356738][T10211] Call Trace: [ 84.360105][T10211] dump_stack+0xfa/0x151 [ 84.364346][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 84.370525][T10211] print_address_description.constprop.0.cold+0x5b/0x2f8 [ 84.377546][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 84.383684][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 84.389819][T10211] kasan_report.cold+0x7c/0xd8 [ 84.394571][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 84.400709][T10211] __cpuhp_state_remove_instance+0x58b/0x5b0 [ 84.406720][T10211] io_wq_create+0x6ca/0xbf0 [ 84.411212][T10211] io_uring_alloc_task_context+0x1bf/0x6a0 [ 84.417000][T10211] ? io_req_caches_free.constprop.0+0x4d0/0x4d0 [ 84.423232][T10211] ? io_issue_sqe+0x4f00/0x4f00 [ 84.428307][T10211] ? io_async_find_and_cancel+0x2f0/0x2f0 [ 84.434011][T10211] ? do_raw_spin_unlock+0x171/0x230 [ 84.439198][T10211] ? _raw_spin_unlock+0x24/0x40 [ 84.444035][T10211] ? alloc_fd+0x2bc/0x640 [ 84.448350][T10211] io_uring_add_task_file+0x261/0x350 [ 84.453710][T10211] io_uring_setup+0x14c7/0x2be0 [ 84.458559][T10211] ? io_async_buf_func+0x720/0x720 [ 84.463670][T10211] ? syscall_enter_from_user_mode+0x1d/0x50 [ 84.469555][T10211] do_syscall_64+0x2d/0x70 [ 84.473958][T10211] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 84.479837][T10211] RIP: 0033:0x465ef9 [ 84.483715][T10211] 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 [ 84.503306][T10211] RSP: 002b:00007f39e8396188 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 84.511708][T10211] RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465ef9 [ 84.519662][T10211] RDX: 0000000000000000 RSI: 0000000020006400 RDI: 0000000000006b6c [ 84.527633][T10211] RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000 [ 84.535625][T10211] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 [ 84.543581][T10211] R13: 00007fffe75d480f R14: 00007f39e8396300 R15: 0000000000022000 [ 84.551550][T10211] [ 84.553852][T10211] Allocated by task 10211: [ 84.558238][T10211] kasan_save_stack+0x1b/0x40 [ 84.562953][T10211] __kasan_kmalloc+0x99/0xc0 [ 84.567522][T10211] io_wq_create+0xc0/0xbf0 [ 84.571921][T10211] io_uring_alloc_task_context+0x1bf/0x6a0 [ 84.577727][T10211] io_uring_add_task_file+0x261/0x350 [ 84.583081][T10211] io_uring_setup+0x14c7/0x2be0 [ 84.587921][T10211] do_syscall_64+0x2d/0x70 [ 84.592316][T10211] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 84.598213][T10211] [ 84.600513][T10211] Freed by task 10211: [ 84.604556][T10211] kasan_save_stack+0x1b/0x40 [ 84.609303][T10211] kasan_set_track+0x1c/0x30 [ 84.613887][T10211] kasan_set_free_info+0x20/0x30 [ 84.618812][T10211] __kasan_slab_free+0xf5/0x130 [ 84.623651][T10211] slab_free_freelist_hook+0x72/0x1b0 [ 84.629014][T10211] kfree+0xe5/0x7b0 [ 84.632805][T10211] io_wq_put+0x4d0/0x6d0 [ 84.637034][T10211] io_wq_create+0x92d/0xbf0 [ 84.641523][T10211] io_uring_alloc_task_context+0x1bf/0x6a0 [ 84.647314][T10211] io_uring_add_task_file+0x261/0x350 [ 84.652668][T10211] io_uring_setup+0x14c7/0x2be0 [ 84.657520][T10211] do_syscall_64+0x2d/0x70 [ 84.661921][T10211] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 84.667797][T10211] [ 84.670100][T10211] Last potentially related work creation: [ 84.675793][T10211] kasan_save_stack+0x1b/0x40 [ 84.680451][T10211] kasan_record_aux_stack+0xe5/0x110 [ 84.685720][T10211] insert_work+0x48/0x370 [ 84.690029][T10211] __queue_work+0x5c1/0xf00 [ 84.694521][T10211] queue_work_on+0xae/0xc0 [ 84.698986][T10211] call_usermodehelper_exec+0x1f0/0x4c0 [ 84.704518][T10211] kobject_uevent_env+0xf9f/0x1680 [ 84.709608][T10211] kobject_synth_uevent+0x701/0x850 [ 84.714783][T10211] uevent_store+0x20/0x50 [ 84.719094][T10211] dev_attr_store+0x50/0x80 [ 84.723578][T10211] sysfs_kf_write+0x110/0x160 [ 84.728243][T10211] kernfs_fop_write_iter+0x342/0x500 [ 84.733508][T10211] new_sync_write+0x426/0x650 [ 84.738165][T10211] vfs_write+0x796/0xa30 [ 84.742385][T10211] ksys_write+0x12d/0x250 [ 84.746696][T10211] do_syscall_64+0x2d/0x70 [ 84.751137][T10211] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 84.757019][T10211] [ 84.759363][T10211] Second to last potentially related work creation: [ 84.765920][T10211] kasan_save_stack+0x1b/0x40 [ 84.770582][T10211] kasan_record_aux_stack+0xe5/0x110 [ 84.775865][T10211] insert_work+0x48/0x370 [ 84.780174][T10211] __queue_work+0x5c1/0xf00 [ 84.784659][T10211] queue_work_on+0xae/0xc0 [ 84.789053][T10211] call_usermodehelper_exec+0x1f0/0x4c0 [ 84.794593][T10211] kobject_uevent_env+0xf9f/0x1680 [ 84.799683][T10211] kobject_synth_uevent+0x701/0x850 [ 84.804861][T10211] uevent_store+0x20/0x50 [ 84.809172][T10211] dev_attr_store+0x50/0x80 [ 84.813740][T10211] sysfs_kf_write+0x110/0x160 [ 84.818396][T10211] kernfs_fop_write_iter+0x342/0x500 [ 84.823660][T10211] new_sync_write+0x426/0x650 [ 84.828318][T10211] vfs_write+0x796/0xa30 [ 84.832555][T10211] ksys_write+0x12d/0x250 [ 84.836867][T10211] do_syscall_64+0x2d/0x70 [ 84.841297][T10211] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 84.847177][T10211] [ 84.849481][T10211] The buggy address belongs to the object at ffff88801ca97800 [ 84.849481][T10211] which belongs to the cache kmalloc-192 of size 192 [ 84.863517][T10211] The buggy address is located 152 bytes inside of [ 84.863517][T10211] 192-byte region [ffff88801ca97800, ffff88801ca978c0) [ 84.876769][T10211] The buggy address belongs to the page: [ 84.882376][T10211] page:00000000332e3e2b refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ca97 [ 84.892508][T10211] flags: 0xfff00000000200(slab) [ 84.897343][T10211] raw: 00fff00000000200 ffffea000049d1c0 0000000a0000000a ffff888010841a00 [ 84.905919][T10211] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 84.914476][T10211] page dumped because: kasan: bad access detected [ 84.920882][T10211] [ 84.923192][T10211] Memory state around the buggy address: [ 84.928798][T10211] ffff88801ca97780: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 84.936839][T10211] ffff88801ca97800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.944880][T10211] >ffff88801ca97880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 84.952917][T10211] ^ [ 84.957745][T10211] ffff88801ca97900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.965784][T10211] ffff88801ca97980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 84.973840][T10211] ================================================================== [ 84.981888][T10211] Disabling lock debugging due to kernel taint [ 84.994654][T10211] Kernel panic - not syncing: panic_on_warn set ... [ 85.001249][T10211] CPU: 1 PID: 10211 Comm: syz-executor.0 Tainted: G B 5.11.0-syzkaller #0 [ 85.011050][T10211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.021101][T10211] Call Trace: [ 85.024364][T10211] dump_stack+0xfa/0x151 [ 85.028587][T10211] panic+0x306/0x73d [ 85.032461][T10211] ? __warn_printk+0xf3/0xf3 [ 85.037030][T10211] ? preempt_schedule_common+0x59/0xc0 [ 85.042482][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 85.048635][T10211] ? preempt_schedule_thunk+0x16/0x18 [ 85.053989][T10211] ? trace_hardirqs_on+0x38/0x1c0 [ 85.059003][T10211] ? trace_hardirqs_on+0x51/0x1c0 [ 85.064004][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 85.070143][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 85.076289][T10211] end_report.cold+0x5a/0x5a [ 85.080864][T10211] kasan_report.cold+0x6a/0xd8 [ 85.085607][T10211] ? __cpuhp_state_remove_instance+0x58b/0x5b0 [ 85.091740][T10211] __cpuhp_state_remove_instance+0x58b/0x5b0 [ 85.097720][T10211] io_wq_create+0x6ca/0xbf0 [ 85.102207][T10211] io_uring_alloc_task_context+0x1bf/0x6a0 [ 85.107994][T10211] ? io_req_caches_free.constprop.0+0x4d0/0x4d0 [ 85.114211][T10211] ? io_issue_sqe+0x4f00/0x4f00 [ 85.119049][T10211] ? io_async_find_and_cancel+0x2f0/0x2f0 [ 85.124749][T10211] ? do_raw_spin_unlock+0x171/0x230 [ 85.129925][T10211] ? _raw_spin_unlock+0x24/0x40 [ 85.134757][T10211] ? alloc_fd+0x2bc/0x640 [ 85.139066][T10211] io_uring_add_task_file+0x261/0x350 [ 85.144477][T10211] io_uring_setup+0x14c7/0x2be0 [ 85.149440][T10211] ? io_async_buf_func+0x720/0x720 [ 85.154531][T10211] ? syscall_enter_from_user_mode+0x1d/0x50 [ 85.160424][T10211] do_syscall_64+0x2d/0x70 [ 85.164817][T10211] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 85.170700][T10211] RIP: 0033:0x465ef9 [ 85.174572][T10211] 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 [ 85.194272][T10211] RSP: 002b:00007f39e8396188 EFLAGS: 00000246 ORIG_RAX: 00000000000001a9 [ 85.202679][T10211] RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465ef9 [ 85.210627][T10211] RDX: 0000000000000000 RSI: 0000000020006400 RDI: 0000000000006b6c [ 85.218574][T10211] RBP: 00000000004bcd1c R08: 0000000000000000 R09: 0000000000000000 [ 85.226527][T10211] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 [ 85.234484][T10211] R13: 00007fffe75d480f R14: 00007f39e8396300 R15: 0000000000022000 [ 85.243613][T10211] Kernel Offset: disabled [ 85.247922][T10211] Rebooting in 86400 seconds..