SB2024060540 - Off-by-one in Linux kernel dc hdcp driver
Published: June 5, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024060540
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) Off-by-one (CVE-ID: CVE-2021-47046)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an off-by-one error within the drivers/gpu/drm/amd/display/dc/hdcp/hdcp_msg.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/403c4528e5887af3deb9838cb77a557631d1e138
- https://git.kernel.org/stable/c/6a58310d5d1e5b02d0fc9b393ba540c9367bced5
- https://git.kernel.org/stable/c/080bd41d6478a64edf96704fddcda52b1fd5fed7
- https://git.kernel.org/stable/c/8e6fafd5a22e7a2eb216f5510db7aab54cc545c1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13