Hi Laura, > 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@xxxxxxxxxx> > --- > Originally found and tested on 4.4 based branch. > --- > drivers/bluetooth/btwilink.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) patch has been applied to bluetooth-next tree. Regards Marcel -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
