Warning: Permanently added '10.128.10.3' (ECDSA) to the list of known hosts. syzkaller login: [ 138.151419][ T8219] IPVS: ftp: loaded support on port[0] = 21 executing program [ 138.295893][ T8225] Bluetooth: hci0: advertising data len corrected 14 -> 0 [ 138.295987][ T8225] Bluetooth: hci0: Dropping invalid advertising data [ 138.311499][ T8225] ===================================================== [ 138.318431][ T8225] BUG: KMSAN: uninit-value in hci_event_packet+0x10419/0x39e50 [ 138.326014][ T8225] CPU: 0 PID: 8225 Comm: kworker/u5:2 Not tainted 5.12.0-rc6-syzkaller #0 [ 138.334524][ T8225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.344579][ T8225] Workqueue: hci0 hci_rx_work [ 138.349267][ T8225] Call Trace: [ 138.352543][ T8225] dump_stack+0x24c/0x2e0 [ 138.356927][ T8225] kmsan_report+0xfb/0x1e0 [ 138.361383][ T8225] __msan_warning+0x5c/0xa0 [ 138.365930][ T8225] hci_event_packet+0x10419/0x39e50 [ 138.371137][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.376988][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.383063][ T8225] ? kmsan_get_metadata+0xd4/0x180 [ 138.388184][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 138.393389][ T8225] hci_rx_work+0x744/0xcf0 [ 138.397830][ T8225] ? hci_alloc_dev+0x28d0/0x28d0 [ 138.402778][ T8225] process_one_work+0x1219/0x1fe0 [ 138.407827][ T8225] worker_thread+0x10ec/0x2340 [ 138.412608][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 138.417824][ T8225] kthread+0x521/0x560 [ 138.421919][ T8225] ? process_one_work+0x1fe0/0x1fe0 [ 138.427130][ T8225] ? kthread_blkcg+0x110/0x110 [ 138.431904][ T8225] ret_from_fork+0x1f/0x30 [ 138.436351][ T8225] [ 138.438671][ T8225] Uninit was created at: [ 138.442902][ T8225] kmsan_internal_poison_shadow+0x66/0xd0 [ 138.448639][ T8225] kmsan_slab_alloc+0x8e/0xe0 [ 138.453327][ T8225] __kmalloc_node_track_caller+0xa4f/0x1470 [ 138.459230][ T8225] __alloc_skb+0x4dd/0xe90 [ 138.463658][ T8225] vhci_write+0x18a/0x880 [ 138.468004][ T8225] vfs_write+0x1083/0x1b00 [ 138.472424][ T8225] ksys_write+0x275/0x500 [ 138.476778][ T8225] __se_sys_write+0x92/0xb0 [ 138.481292][ T8225] __x64_sys_write+0x4a/0x70 [ 138.485893][ T8225] do_syscall_64+0x9f/0x140 [ 138.490403][ T8225] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 138.496306][ T8225] ===================================================== [ 138.503232][ T8225] Disabling lock debugging due to kernel taint [ 138.509389][ T8225] Kernel panic - not syncing: panic_on_kmsan set ... [ 138.516058][ T8225] CPU: 0 PID: 8225 Comm: kworker/u5:2 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 138.525967][ T8225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 138.536023][ T8225] Workqueue: hci0 hci_rx_work [ 138.540710][ T8225] Call Trace: [ 138.543987][ T8225] dump_stack+0x24c/0x2e0 [ 138.548345][ T8225] panic+0x4c6/0xea7 [ 138.552259][ T8225] ? add_taint+0x17c/0x210 [ 138.556680][ T8225] kmsan_report+0x1de/0x1e0 [ 138.561196][ T8225] __msan_warning+0x5c/0xa0 [ 138.565708][ T8225] hci_event_packet+0x10419/0x39e50 [ 138.570921][ T8225] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 138.576761][ T8225] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 138.582840][ T8225] ? kmsan_get_metadata+0xd4/0x180 [ 138.587969][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 138.593181][ T8225] hci_rx_work+0x744/0xcf0 [ 138.597609][ T8225] ? hci_alloc_dev+0x28d0/0x28d0 [ 138.602562][ T8225] process_one_work+0x1219/0x1fe0 [ 138.607607][ T8225] worker_thread+0x10ec/0x2340 [ 138.612400][ T8225] ? kmsan_get_metadata+0x116/0x180 [ 138.617615][ T8225] kthread+0x521/0x560 [ 138.621716][ T8225] ? process_one_work+0x1fe0/0x1fe0 [ 138.626930][ T8225] ? kthread_blkcg+0x110/0x110 [ 138.631702][ T8225] ret_from_fork+0x1f/0x30 [ 138.636977][ T8225] Kernel Offset: disabled [ 138.641291][ T8225] Rebooting in 86400 seconds..