CVE-2021-47207
ALSA: gus: fix null pointer dereference on pointer block
In the Linux kernel, the following vulnerability has been resolved:
ALSA: gus: fix null pointer dereference on pointer block
The pointer block return from snd_gf1_dma_next_block could be
null, so there is a potential null pointer dereference issue.
Fix this by adding a null check before dereference.
Affected products
Linux · LinuxWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0fhttps://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5behttps://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030chttps://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aahttps://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bchttps://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc