Commits
Laura Abbott committed acf91ec384d
Bluetooth: btwilink: Save the packet type before sending Running with KASAN produces some messages: BUG: KASAN: use-after-free in ti_st_send_frame+0x9c/0x16c at addr ffffffc064868fe8 Read of size 1 by task kworker/u17:1/1266 <KASAN output trimmed> Hardware name: HiKey Development Board (DT) Workqueue: hci0 hci_cmd_work Call trace: [<ffffffc00008c00c>] dump_backtrace+0x0/0x178 [<ffffffc00008c1a4>] show_stack+0x20/0x28 [<ffffffc00067da38>] dump_stack+0xa8/0xe0 [<ffffffc000288430>] print_trailer+0x110/0x174 [<ffffffc00028aedc>] object_err+0x4c/0x5c [<ffffffc00028f714>] kasan_report_error+0x254/0x54c [<ffffffc00028fa70>] kasan_report+0x64/0x70 [<ffffffc00028eb8c>] __asan_load1+0x4c/0x54 [<ffffffc000b59b24>] ti_st_send_frame+0x9c/0x16c [<ffffffc000ee8dcc>] hci_send_frame+0xb4/0x118 [<ffffffc000ee8efc>] hci_cmd_work+0xcc/0x154 [<ffffffc0000f6c48>] process_one_work+0x26c/0x7a4 [<ffffffc0000f721c>] worker_thread+0x9c/0x73c [<ffffffc000100250>] kthread+0x138/0x154 [<ffffffc000085c50>] ret_from_fork+0x10/0x40 The packet is being accessed for statistics after it has been freed. Save the packet type before sending for statistics afterwards. Signed-off-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>