Re: [PATCH v2] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data

2018-12-12 Thread Greg KH
On Mon, Dec 10, 2018 at 01:50:20PM +0100, Sebastian Andrzej Siewior wrote: > On 2018-12-10 09:04:43 [+0100], Greg KH wrote: > > From: Hui Peng > > > > The function hso_probe reads if_num from the USB device (as an u8) and uses > > it without a length check to index an array, resulting in an OOB m

Re: [PATCH v2] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data

2018-12-10 Thread Sebastian Andrzej Siewior
On 2018-12-10 09:04:43 [+0100], Greg KH wrote: > From: Hui Peng > > The function hso_probe reads if_num from the USB device (as an u8) and uses > it without a length check to index an array, resulting in an OOB memory read > in hso_probe or hso_get_config_data. Added a length check for both locat

[PATCH v2] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data

2018-12-10 Thread Greg KH
From: Hui Peng The function hso_probe reads if_num from the USB device (as an u8) and uses it without a length check to index an array, resulting in an OOB memory read in hso_probe or hso_get_config_data. Added a length check for both locations and updated hso_probe to bail on error. This issue