forked to background, child pid 4654 no interfaces have a carrier [ 53.832155][ T4655] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.862696][ T4655] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.207' (ECDSA) to the list of known hosts. syzkaller login: [ 82.513450][ T5078] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 82.522031][ T5078] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 82.529621][ T5078] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 82.537465][ T5078] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 82.545703][ T5078] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 82.553356][ T5078] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 executing program [ 82.634566][ T5075] FAULT_INJECTION: forcing a failure. [ 82.634566][ T5075] name failslab, interval 1, probability 0, space 0, times 1 [ 82.647345][ T5075] CPU: 0 PID: 5075 Comm: syz-executor290 Not tainted 6.2.0-syzkaller-05261-gfd2a55e74a99 #0 [ 82.657457][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 82.667609][ T5075] Call Trace: [ 82.670898][ T5075] [ 82.673858][ T5075] dump_stack_lvl+0x136/0x150 [ 82.678568][ T5075] should_fail_ex+0x4a3/0x5b0 [ 82.683274][ T5075] should_failslab+0x9/0x20 [ 82.687805][ T5075] __kmem_cache_alloc_node+0x5b/0x330 [ 82.693203][ T5075] ? tcf_exts_init_ex+0x246/0x5a0 [ 82.698292][ T5075] kmalloc_trace+0x26/0x60 [ 82.702741][ T5075] tcf_exts_init_ex+0x246/0x5a0 [ 82.707644][ T5075] fl_change+0x56f/0x4ab0 [ 82.712047][ T5075] ? fl_destroy+0x320/0x320 [ 82.716604][ T5075] ? __radix_tree_lookup+0x215/0x2a0 [ 82.721927][ T5075] ? fl_get+0x229/0x3c0 [ 82.726119][ T5075] ? fl_put+0x20/0x20 [ 82.730147][ T5075] tc_new_tfilter+0x97c/0x2290 [ 82.734982][ T5075] ? tc_del_tfilter+0x15d0/0x15d0 [ 82.740043][ T5075] ? mark_lock.part.0+0xee/0x1970 [ 82.745095][ T5075] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 82.751110][ T5075] ? mark_lock.part.0+0xee/0x1970 [ 82.756180][ T5075] ? print_usage_bug.part.0+0x660/0x660 [ 82.761779][ T5075] ? rtnetlink_rcv_msg+0x956/0xd50 [ 82.766929][ T5075] ? lock_downgrade+0x690/0x690 [ 82.771823][ T5075] ? tc_del_tfilter+0x15d0/0x15d0 [ 82.776881][ T5075] rtnetlink_rcv_msg+0x996/0xd50 [ 82.781866][ T5075] ? rtnl_stats_set+0x4d0/0x4d0 [ 82.786755][ T5075] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 82.792784][ T5075] ? __sys_sendmsg+0xf7/0x1c0 [ 82.797502][ T5075] ? do_syscall_64+0x39/0xb0 [ 82.802151][ T5075] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 82.808202][ T5075] netlink_rcv_skb+0x165/0x440 [ 82.813027][ T5075] ? rtnl_stats_set+0x4d0/0x4d0 [ 82.817932][ T5075] ? netlink_ack+0x1360/0x1360 [ 82.822789][ T5075] ? netlink_deliver_tap+0x1b1/0xcf0 [ 82.828126][ T5075] netlink_unicast+0x547/0x7f0 [ 82.832939][ T5075] ? netlink_attachskb+0x890/0x890 [ 82.838088][ T5075] ? __virt_addr_valid+0x61/0x2e0 [ 82.843159][ T5075] ? __phys_addr_symbol+0x30/0x70 [ 82.848234][ T5075] ? __check_object_size+0x333/0x6e0 [ 82.853552][ T5075] netlink_sendmsg+0x925/0xe30 [ 82.858368][ T5075] ? netlink_unicast+0x7f0/0x7f0 [ 82.863386][ T5075] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 82.868753][ T5075] ? netlink_unicast+0x7f0/0x7f0 [ 82.873728][ T5075] sock_sendmsg+0xde/0x190 [ 82.878183][ T5075] ____sys_sendmsg+0x71c/0x900 [ 82.883006][ T5075] ? copy_msghdr_from_user+0xfc/0x150 [ 82.888421][ T5075] ? kernel_sendmsg+0x50/0x50 [ 82.893145][ T5075] ? find_held_lock+0x2d/0x110 [ 82.897962][ T5075] ___sys_sendmsg+0x110/0x1b0 [ 82.902694][ T5075] ? do_recvmmsg+0x6e0/0x6e0 [ 82.907323][ T5075] ? find_held_lock+0x2d/0x110 [ 82.912132][ T5075] ? ksys_write+0x12b/0x250 [ 82.916678][ T5075] ? lock_downgrade+0x690/0x690 [ 82.921570][ T5075] ? proc_fail_nth_write+0x99/0x220 [ 82.926813][ T5075] ? proc_task_getattr+0x1f0/0x1f0 [ 82.931981][ T5075] ? vfs_write+0x49e/0xe10 [ 82.936455][ T5075] ? __fget_light+0x20a/0x270 [ 82.941189][ T5075] __sys_sendmsg+0xf7/0x1c0 [ 82.945742][ T5075] ? __sys_sendmsg_sock+0x40/0x40 [ 82.950816][ T5075] ? up_write+0x520/0x520 [ 82.955203][ T5075] ? __fget_light+0x20a/0x270 [ 82.959948][ T5075] ? syscall_enter_from_user_mode+0x26/0xb0 [ 82.965882][ T5075] ? lockdep_hardirqs_on+0x7d/0x100 [ 82.971121][ T5075] do_syscall_64+0x39/0xb0 [ 82.975584][ T5075] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 82.981508][ T5075] RIP: 0033:0x7fcc7b3bf779 [ 82.985947][ T5075] Code: 28 c3 e8 9a 18 00 00 66 2e 0f 1f 84 00 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 83.005592][ T5075] RSP: 002b:00007ffe7e54a2f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.014039][ T5075] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcc7b3bf779 [ 83.022034][ T5075] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 83.030026][ T5075] RBP: 00007ffe7e54a300 R08: 0000000000000002 R09: 0000000000003931 [ 83.038023][ T5075] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 [ 83.046037][ T5075] R13: 00007ffe7e54a390 R14: 00007ffe7e54a360 R15: 00007ffe7e54a358 [ 83.054071][ T5075] [ 83.108520][ T9] ================================================================== [ 83.116635][ T9] BUG: KASAN: use-after-free in tcf_action_destroy+0x17f/0x1b0 [ 83.124205][ T9] Read of size 8 at addr ffff888144edda00 by task kworker/u4:0/9 [ 83.131925][ T9] [ 83.134261][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 6.2.0-syzkaller-05261-gfd2a55e74a99 #0 [ 83.143809][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 83.153873][ T9] Workqueue: tc_filter_workqueue fl_destroy_filter_work [ 83.160837][ T9] Call Trace: [ 83.164115][ T9] [ 83.167051][ T9] dump_stack_lvl+0xd9/0x150 [ 83.171658][ T9] print_address_description.constprop.0+0x28/0x360 [ 83.178263][ T9] ? tcf_action_destroy+0x17f/0x1b0 [ 83.183488][ T9] kasan_report+0x11c/0x130 [ 83.188008][ T9] ? tcf_action_destroy+0x17f/0x1b0 [ 83.193236][ T9] tcf_action_destroy+0x17f/0x1b0 [ 83.198274][ T9] tcf_exts_destroy+0xc5/0x160 [ 83.203057][ T9] __fl_destroy_filter+0x1a/0x100 [ 83.208100][ T9] process_one_work+0x9bf/0x1820 [ 83.213052][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 83.218441][ T9] ? spin_bug+0x1c0/0x1c0 [ 83.222797][ T9] worker_thread+0x669/0x1090 [ 83.227488][ T9] ? process_one_work+0x1820/0x1820 [ 83.232704][ T9] kthread+0x2e8/0x3a0 [ 83.236780][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 83.242422][ T9] ret_from_fork+0x1f/0x30 [ 83.246861][ T9] [ 83.249880][ T9] [ 83.252202][ T9] Allocated by task 5075: [ 83.256522][ T9] kasan_save_stack+0x22/0x40 [ 83.261223][ T9] kasan_set_track+0x25/0x30 [ 83.265830][ T9] __kasan_kmalloc+0xa5/0xb0 [ 83.270460][ T9] tcf_exts_init_ex+0xe4/0x5a0 [ 83.275242][ T9] fl_change+0x56f/0x4ab0 [ 83.279600][ T9] tc_new_tfilter+0x97c/0x2290 [ 83.284372][ T9] rtnetlink_rcv_msg+0x996/0xd50 [ 83.289589][ T9] netlink_rcv_skb+0x165/0x440 [ 83.294362][ T9] netlink_unicast+0x547/0x7f0 [ 83.299143][ T9] netlink_sendmsg+0x925/0xe30 [ 83.303920][ T9] sock_sendmsg+0xde/0x190 [ 83.308368][ T9] ____sys_sendmsg+0x71c/0x900 [ 83.313143][ T9] ___sys_sendmsg+0x110/0x1b0 [ 83.317849][ T9] __sys_sendmsg+0xf7/0x1c0 [ 83.322402][ T9] do_syscall_64+0x39/0xb0 [ 83.326837][ T9] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 83.332740][ T9] [ 83.335059][ T9] Freed by task 5075: [ 83.339037][ T9] kasan_save_stack+0x22/0x40 [ 83.343736][ T9] kasan_set_track+0x25/0x30 [ 83.348345][ T9] kasan_save_free_info+0x2e/0x40 [ 83.353377][ T9] ____kasan_slab_free+0x160/0x1c0 [ 83.358508][ T9] slab_free_freelist_hook+0x8b/0x1c0 [ 83.363896][ T9] __kmem_cache_free+0xaf/0x2d0 [ 83.368764][ T9] tcf_exts_destroy+0xe5/0x160 [ 83.373553][ T9] tcf_exts_init_ex+0x484/0x5a0 [ 83.378452][ T9] fl_change+0x56f/0x4ab0 [ 83.382812][ T9] tc_new_tfilter+0x97c/0x2290 [ 83.387580][ T9] rtnetlink_rcv_msg+0x996/0xd50 [ 83.392535][ T9] netlink_rcv_skb+0x165/0x440 [ 83.397310][ T9] netlink_unicast+0x547/0x7f0 [ 83.402087][ T9] netlink_sendmsg+0x925/0xe30 [ 83.406878][ T9] sock_sendmsg+0xde/0x190 [ 83.411309][ T9] ____sys_sendmsg+0x71c/0x900 [ 83.416085][ T9] ___sys_sendmsg+0x110/0x1b0 [ 83.420785][ T9] __sys_sendmsg+0xf7/0x1c0 [ 83.425304][ T9] do_syscall_64+0x39/0xb0 [ 83.429735][ T9] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 83.435638][ T9] [ 83.437963][ T9] The buggy address belongs to the object at ffff888144edda00 [ 83.437963][ T9] which belongs to the cache kmalloc-256 of size 256 [ 83.452043][ T9] The buggy address is located 0 bytes inside of [ 83.452043][ T9] 256-byte region [ffff888144edda00, ffff888144eddb00) [ 83.465147][ T9] [ 83.467466][ T9] The buggy address belongs to the physical page: [ 83.473873][ T9] page:ffffea000513b700 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x144edc [ 83.484113][ T9] head:ffffea000513b700 order:1 compound_mapcount:0 subpages_mapcount:0 compound_pincount:0 [ 83.494174][ T9] anon flags: 0x57ff00000010200(slab|head|node=1|zone=2|lastcpupid=0x7ff) [ 83.502690][ T9] raw: 057ff00000010200 ffff888012441b40 0000000000000000 dead000000000001 [ 83.511277][ T9] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 83.519855][ T9] page dumped because: kasan: bad access detected [ 83.526257][ T9] page_owner tracks the page as allocated [ 83.531970][ T9] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 12066229885, free_ts 0 [ 83.551689][ T9] get_page_from_freelist+0x119c/0x2d00 [ 83.557347][ T9] __alloc_pages+0x1cb/0x5c0 [ 83.561948][ T9] alloc_page_interleave+0x1e/0x200 [ 83.567168][ T9] alloc_pages+0x233/0x270 [ 83.571692][ T9] allocate_slab+0x25f/0x390 [ 83.576294][ T9] ___slab_alloc+0xa91/0x1400 [ 83.580983][ T9] __slab_alloc.constprop.0+0x56/0xa0 [ 83.586380][ T9] __kmem_cache_alloc_node+0x136/0x330 [ 83.591872][ T9] kmalloc_trace+0x26/0x60 [ 83.596302][ T9] blk_iolatency_init+0x46/0x230 [ 83.601254][ T9] blkcg_init_disk+0x1ee/0x6c0 [ 83.606031][ T9] __alloc_disk_node+0x2a1/0x650 [ 83.610989][ T9] __blk_alloc_disk+0x37/0x90 [ 83.615693][ T9] brd_alloc.part.0+0x281/0x7a0 [ 83.620558][ T9] brd_init+0x1b5/0x2a0 [ 83.624715][ T9] do_one_initcall+0x141/0x7d0 [ 83.629503][ T9] page_owner free stack trace missing [ 83.634864][ T9] [ 83.637184][ T9] Memory state around the buggy address: [ 83.642811][ T9] ffff888144edd900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 83.650875][ T9] ffff888144edd980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 83.658938][ T9] >ffff888144edda00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 83.666995][ T9] ^ [ 83.671059][ T9] ffff888144edda80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 83.679120][ T9] ffff888144eddb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 83.687189][ T9] ================================================================== [ 83.695497][ T9] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 83.702729][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.2.0-syzkaller-05261-gfd2a55e74a99 #0 [ 83.712294][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 83.722410][ T9] Workqueue: tc_filter_workqueue fl_destroy_filter_work [ 83.729390][ T9] Call Trace: [ 83.732689][ T9] [ 83.735635][ T9] dump_stack_lvl+0xd9/0x150 [ 83.740257][ T9] panic+0x61b/0x6c0 [ 83.744196][ T9] ? panic_smp_self_stop+0x90/0x90 [ 83.749338][ T9] ? preempt_schedule_thunk+0x1a/0x20 [ 83.754744][ T9] ? preempt_schedule_common+0x45/0xb0 [ 83.760245][ T9] check_panic_on_warn+0xb1/0xc0 [ 83.765314][ T9] end_report+0xf6/0x180 [ 83.769582][ T9] ? tcf_action_destroy+0x17f/0x1b0 [ 83.774818][ T9] kasan_report+0xf9/0x130 [ 83.779263][ T9] ? tcf_action_destroy+0x17f/0x1b0 [ 83.784500][ T9] tcf_action_destroy+0x17f/0x1b0 [ 83.789572][ T9] tcf_exts_destroy+0xc5/0x160 [ 83.794377][ T9] __fl_destroy_filter+0x1a/0x100 [ 83.799454][ T9] process_one_work+0x9bf/0x1820 [ 83.804442][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 83.809855][ T9] ? spin_bug+0x1c0/0x1c0 [ 83.814218][ T9] worker_thread+0x669/0x1090 [ 83.818954][ T9] ? process_one_work+0x1820/0x1820 [ 83.824193][ T9] kthread+0x2e8/0x3a0 [ 83.828292][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 83.833948][ T9] ret_from_fork+0x1f/0x30 [ 83.838422][ T9] [ 83.841726][ T9] Kernel Offset: disabled [ 83.846065][ T9] Rebooting in 86400 seconds..