Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.026265][ T3587] Bluetooth: hci0: Unknown advertising packet type: 0x6678 [ 43.026362][ T3587] ================================================================== [ 43.041713][ T3587] BUG: KASAN: slab-out-of-bounds in hci_le_meta_evt+0x11d3/0x3b90 [ 43.049522][ T3587] Read of size 1 at addr ffff88801d815c0a by task kworker/u5:1/3587 [ 43.057490][ T3587] [ 43.059811][ T3587] CPU: 1 PID: 3587 Comm: kworker/u5:1 Not tainted 5.15.104-syzkaller #0 [ 43.068235][ T3587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 43.078315][ T3587] Workqueue: hci0 hci_rx_work [ 43.083009][ T3587] Call Trace: [ 43.086579][ T3587] [ 43.089510][ T3587] dump_stack_lvl+0x1e3/0x2cb [ 43.094185][ T3587] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 43.099824][ T3587] ? _printk+0xd1/0x111 [ 43.103990][ T3587] ? __wake_up_klogd+0xcc/0x100 [ 43.108850][ T3587] ? panic+0x84d/0x84d [ 43.112904][ T3587] ? _raw_spin_lock_irqsave+0xdd/0x120 [ 43.118365][ T3587] print_address_description+0x63/0x3b0 [ 43.123903][ T3587] ? hci_le_meta_evt+0x11d3/0x3b90 [ 43.129000][ T3587] kasan_report+0x16b/0x1c0 [ 43.133492][ T3587] ? hci_le_meta_evt+0x11d3/0x3b90 [ 43.138589][ T3587] hci_le_meta_evt+0x11d3/0x3b90 [ 43.143515][ T3587] ? __mutex_lock_common+0x444/0x25a0 [ 43.148889][ T3587] ? hci_remote_host_features_evt+0x260/0x260 [ 43.155025][ T3587] ? __mutex_unlock_slowpath+0x218/0x750 [ 43.160638][ T3587] ? hci_event_packet+0x3b4/0x1480 [ 43.165742][ T3587] ? mutex_unlock+0x10/0x10 [ 43.170233][ T3587] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 43.176200][ T3587] ? print_irqtrace_events+0x210/0x210 [ 43.181674][ T3587] hci_event_packet+0xc28/0x1480 [ 43.186609][ T3587] ? rcu_lock_release+0x20/0x20 [ 43.191454][ T3587] ? hci_send_to_monitor+0x99/0x4d0 [ 43.196641][ T3587] hci_rx_work+0x240/0x7d0 [ 43.201058][ T3587] ? do_raw_spin_unlock+0x137/0x8b0 [ 43.206255][ T3587] process_one_work+0x8a1/0x10c0 [ 43.211188][ T3587] ? worker_detach_from_pool+0x260/0x260 [ 43.216809][ T3587] ? _raw_spin_lock_irqsave+0x120/0x120 [ 43.222365][ T3587] ? kthread_data+0x4e/0xc0 [ 43.226854][ T3587] ? wq_worker_running+0x97/0x170 [ 43.231876][ T3587] worker_thread+0xaca/0x1280 [ 43.236654][ T3587] kthread+0x3f6/0x4f0 [ 43.240708][ T3587] ? rcu_lock_release+0x20/0x20 [ 43.245633][ T3587] ? kthread_blkcg+0xd0/0xd0 [ 43.250338][ T3587] ret_from_fork+0x1f/0x30 [ 43.254762][ T3587] [ 43.257798][ T3587] [ 43.260200][ T3587] Allocated by task 3585: [ 43.264529][ T3587] ____kasan_kmalloc+0xba/0xf0 [ 43.269298][ T3587] __kmalloc_node_track_caller+0x195/0x390 [ 43.275093][ T3587] __alloc_skb+0x12c/0x590 [ 43.279494][ T3587] vhci_write+0xbc/0x430 [ 43.283724][ T3587] vfs_write+0xacf/0xe50 [ 43.287950][ T3587] ksys_write+0x1a2/0x2c0 [ 43.292261][ T3587] do_syscall_64+0x3d/0xb0 [ 43.296754][ T3587] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 43.302659][ T3587] [ 43.304967][ T3587] The buggy address belongs to the object at ffff88801d815800 [ 43.304967][ T3587] which belongs to the cache kmalloc-1k of size 1024 [ 43.319012][ T3587] The buggy address is located 10 bytes to the right of [ 43.319012][ T3587] 1024-byte region [ffff88801d815800, ffff88801d815c00) [ 43.332907][ T3587] The buggy address belongs to the page: [ 43.338524][ T3587] page:ffffea0000760400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d810 [ 43.348669][ T3587] head:ffffea0000760400 order:3 compound_mapcount:0 compound_pincount:0 [ 43.357233][ T3587] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff) [ 43.365199][ T3587] raw: 00fff00000010200 0000000000000000 dead000000000122 ffff888011c41dc0 [ 43.373849][ T3587] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 43.382407][ T3587] page dumped because: kasan: bad access detected [ 43.388802][ T3587] page_owner tracks the page as allocated [ 43.394597][ T3587] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3585, ts 43022835256, free_ts 43016006820 [ 43.413778][ T3587] get_page_from_freelist+0x322a/0x33c0 [ 43.419409][ T3587] __alloc_pages+0x272/0x700 [ 43.423980][ T3587] new_slab+0xbb/0x4b0 [ 43.428029][ T3587] ___slab_alloc+0x6f6/0xe10 [ 43.432599][ T3587] kmem_cache_alloc_trace+0x1a0/0x290 [ 43.437952][ T3587] rxrpc_alloc_connection+0x72/0x420 [ 43.443220][ T3587] rxrpc_prealloc_service_connection+0x1f/0x5a0 [ 43.449532][ T3587] rxrpc_service_prealloc_one+0x2c5/0xf50 [ 43.455240][ T3587] rxrpc_kernel_charge_accept+0xce/0x100 [ 43.460852][ T3587] afs_charge_preallocation+0xb6/0x2b0 [ 43.466317][ T3587] afs_open_socket+0x455/0x600 [ 43.471062][ T3587] afs_net_init+0x7b5/0x990 [ 43.475559][ T3587] ops_init+0x356/0x600 [ 43.479730][ T3587] setup_net+0x358/0x9e0 [ 43.484060][ T3587] copy_net_ns+0x395/0x5d0 [ 43.488486][ T3587] create_new_namespaces+0x425/0x7a0 [ 43.493770][ T3587] page last free stack trace: [ 43.498449][ T3587] free_unref_page_prepare+0xc34/0xcf0 [ 43.503909][ T3587] free_unref_page+0x95/0x2d0 [ 43.508581][ T3587] __unfreeze_partials+0x1b7/0x210 [ 43.513770][ T3587] put_cpu_partial+0x132/0x1a0 [ 43.518520][ T3587] ___cache_free+0xe3/0x100 [ 43.523011][ T3587] qlist_free_all+0x36/0x90 [ 43.527498][ T3587] kasan_quarantine_reduce+0x162/0x180 [ 43.533024][ T3587] __kasan_slab_alloc+0x2f/0xc0 [ 43.537855][ T3587] slab_post_alloc_hook+0x53/0x380 [ 43.542948][ T3587] __kmalloc+0x120/0x300 [ 43.547259][ T3587] ops_init+0x8b/0x600 [ 43.551313][ T3587] setup_net+0x358/0x9e0 [ 43.555547][ T3587] copy_net_ns+0x395/0x5d0 [ 43.559947][ T3587] create_new_namespaces+0x425/0x7a0 [ 43.565215][ T3587] unshare_nsproxy_namespaces+0x11e/0x170 [ 43.571178][ T3587] ksys_unshare+0x580/0xb20 [ 43.575663][ T3587] [ 43.577971][ T3587] Memory state around the buggy address: [ 43.583579][ T3587] ffff88801d815b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 43.591616][ T3587] ffff88801d815b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 43.599747][ T3587] >ffff88801d815c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.607812][ T3587] ^ [ 43.612123][ T3587] ffff88801d815c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.620164][ T3587] ffff88801d815d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.628205][ T3587] ================================================================== [ 43.636240][ T3587] Disabling lock debugging due to kernel taint [ 43.646205][ T3587] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 43.653489][ T3587] CPU: 1 PID: 3587 Comm: kworker/u5:1 Tainted: G B 5.15.104-syzkaller #0 [ 43.663275][ T3587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 43.673332][ T3587] Workqueue: hci0 hci_rx_work [ 43.678034][ T3587] Call Trace: [ 43.681305][ T3587] [ 43.684218][ T3587] dump_stack_lvl+0x1e3/0x2cb [ 43.688883][ T3587] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 43.694518][ T3587] ? panic+0x84d/0x84d [ 43.698570][ T3587] ? rcu_is_watching+0x11/0xa0 [ 43.703327][ T3587] ? preempt_schedule_common+0xa6/0xd0 [ 43.708777][ T3587] panic+0x318/0x84d [ 43.712662][ T3587] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 43.718803][ T3587] ? check_panic_on_warn+0x1d/0xa0 [ 43.723901][ T3587] ? fb_is_primary_device+0xcc/0xcc [ 43.729080][ T3587] ? _raw_spin_unlock_irqrestore+0x128/0x130 [ 43.735050][ T3587] ? _raw_spin_unlock+0x40/0x40 [ 43.739878][ T3587] check_panic_on_warn+0x7e/0xa0 [ 43.744796][ T3587] ? hci_le_meta_evt+0x11d3/0x3b90 [ 43.749884][ T3587] end_report+0x6d/0xf0 [ 43.754033][ T3587] kasan_report+0x18e/0x1c0 [ 43.758510][ T3587] ? hci_le_meta_evt+0x11d3/0x3b90 [ 43.763599][ T3587] hci_le_meta_evt+0x11d3/0x3b90 [ 43.768515][ T3587] ? __mutex_lock_common+0x444/0x25a0 [ 43.773867][ T3587] ? hci_remote_host_features_evt+0x260/0x260 [ 43.779912][ T3587] ? __mutex_unlock_slowpath+0x218/0x750 [ 43.785520][ T3587] ? hci_event_packet+0x3b4/0x1480 [ 43.790628][ T3587] ? mutex_unlock+0x10/0x10 [ 43.795115][ T3587] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 43.801072][ T3587] ? print_irqtrace_events+0x210/0x210 [ 43.806506][ T3587] hci_event_packet+0xc28/0x1480 [ 43.811422][ T3587] ? rcu_lock_release+0x20/0x20 [ 43.816270][ T3587] ? hci_send_to_monitor+0x99/0x4d0 [ 43.821443][ T3587] hci_rx_work+0x240/0x7d0 [ 43.825834][ T3587] ? do_raw_spin_unlock+0x137/0x8b0 [ 43.831014][ T3587] process_one_work+0x8a1/0x10c0 [ 43.835930][ T3587] ? worker_detach_from_pool+0x260/0x260 [ 43.841537][ T3587] ? _raw_spin_lock_irqsave+0x120/0x120 [ 43.847060][ T3587] ? kthread_data+0x4e/0xc0 [ 43.851540][ T3587] ? wq_worker_running+0x97/0x170 [ 43.856545][ T3587] worker_thread+0xaca/0x1280 [ 43.861202][ T3587] kthread+0x3f6/0x4f0 [ 43.865246][ T3587] ? rcu_lock_release+0x20/0x20 [ 43.870089][ T3587] ? kthread_blkcg+0xd0/0xd0 [ 43.874741][ T3587] ret_from_fork+0x1f/0x30 [ 43.879143][ T3587] [ 43.882303][ T3587] Kernel Offset: disabled [ 43.886610][ T3587] Rebooting in 86400 seconds..