This patch is made to fix below CVE issue where 8 padding bytes are sent to user without being initialized. Structure members are adjusted to avoid 8 padding bytes. CVE-2016-4569/CVE-2016-4578: The stack object tread has a total size of 32 bytes. Its field event and val both contain 4 bytes padding. These 8 bytes padding bytes are sent to user without being initialized. Fix patch: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cec8f96e49d9be372fdb0c3836dcf31ec71e457e https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?h=for-next&id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6 These patches does memset on structure object to initialize 8 padding bytes, which can be skipped by adjusting structure members. Signed-off-by: Manjeet Pawar <manjeet.p@xxxxxxxxxxx> Signed-off-by: Vaneet Narang <v.narang@xxxxxxxxxxx> --- include/uapi/sound/asound.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h index a45be6b..820c5a0 100644 --- a/include/uapi/sound/asound.h +++ b/include/uapi/sound/asound.h @@ -789,8 +789,8 @@ enum { struct snd_timer_tread { int event; - struct timespec tstamp; unsigned int val; + struct timespec tstamp; }; /**************************************************************************** -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
