vulnerability
Ubuntu: (CVE-2021-47207): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Apr 10, 2024 | Nov 19, 2024 | Jun 26, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Apr 10, 2024
Added
Nov 19, 2024
Modified
Jun 26, 2025
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.
Solution(s)
no-fix-ubuntu-packageubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-aws-5-4ubuntu-upgrade-linux-aws-fipsubuntu-upgrade-linux-aws-hweubuntu-upgrade-linux-azureubuntu-upgrade-linux-azure-4-15ubuntu-upgrade-linux-azure-5-4ubuntu-upgrade-linux-azure-fipsubuntu-upgrade-linux-bluefieldubuntu-upgrade-linux-fipsubuntu-upgrade-linux-gcpubuntu-upgrade-linux-gcp-4-15ubuntu-upgrade-linux-gcp-5-4ubuntu-upgrade-linux-gcp-fipsubuntu-upgrade-linux-gkeopubuntu-upgrade-linux-hweubuntu-upgrade-linux-hwe-5-4ubuntu-upgrade-linux-ibmubuntu-upgrade-linux-ibm-5-4ubuntu-upgrade-linux-kvmubuntu-upgrade-linux-oracleubuntu-upgrade-linux-oracle-5-4ubuntu-upgrade-linux-raspiubuntu-upgrade-linux-raspi-5-4
References
- CVE-2021-47207
- https://attackerkb.com/topics/CVE-2021-47207
- URL-https://git.kernel.org/linus/a0d21bb3279476c777434c40d969ea88ca64f9aa
- URL-https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3
- URL-https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f
- URL-https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be
- URL-https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c
- URL-https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa
- URL-https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315
- URL-https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc
- URL-https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc
- URL-https://www.cve.org/CVERecord?id=CVE-2021-47207
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