VulnerabilityAnalyzed
CVE-2021-47207
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.
MEDIUM 5.5EPSS 0.23%
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3Patch
- https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0fPatch
- https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5bePatch
- https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030cPatch
- https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aaPatch
- https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315Patch
- https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bcPatch
- https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fcPatch
- https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3Patch
- https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0fPatch
- https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5bePatch
- https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030cPatch
- https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aaPatch
- https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315Patch
- https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bcPatch
- https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fcPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.