On Wed, May 18, 2022 at 11:49:27AM +0400, Denis Efremov wrote:
On 5/18/22 11:00, Denis Efremov wrote:
This code has a check to prevent read overflow but it needs another check to prevent writing beyond the end of the ->Ssid[] array.
Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver") Cc: stable stable@vger.kernel.org Signed-off-by: Denis Efremov denis.e.efremov@oracle.com
This patch is a copy of Dan's 74b6b20df8cf (CVE-2021-28660). Drivers r8188eu and rtl8188eu share the same code.
I also found same code pattern in rtl8723bs driver in stable kernels 5.10, 5.4, 4.19, 4.14. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/driver... I can send the same fix to stable trees if appropriate.
Please do!
thanks,
greg k-h