SB20240531485 - NULL pointer dereference in Linux kernel isa gus
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531485
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2021-47207)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the snd_gf1_dma_interrupt() function in sound/isa/gus/gus_dma.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5be
- https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fc
- https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030c
- https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315
- https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bc
- https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0f
- https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3
- https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aa
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.256
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.218
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.293
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.291
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.82
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.162