- Vulnerability/
- CVE-2024-56683
CVE-2024-56683: drm/vc4: hdmi: Avoid hang with debug registers when suspended
First published: Sat Dec 28 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: hdmi: Avoid hang with debug registers when suspended Trying to read /sys/kernel/debug/dri/1/hdmi1_regs when the hdmi is disconnected results in a fatal system hang. This is due to the pm suspend code disabling the dvp clock. That is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG, which results in accesses hanging AXI bus. Protect against this.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.15-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/0ea29bd7d9400d3629683244d609358ed1b12075
- https://git.kernel.org/stable/c/16f351adf733a182224ad24916d7673aa6df02df
- https://git.kernel.org/stable/c/223ee2567a55e4f80315c768d2969e6a3b9fb23d
- https://git.kernel.org/stable/c/74f21be9990a42dc2357bcf87a13e16c6998b90e
- https://git.kernel.org/stable/c/c7d474974954d9af7e0092021223d58f2de128df
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56683
- https://nvd.nist.gov/vuln/detail/CVE-2024-56683
- https://launchpad.net/bugs/cve/CVE-2024-56683
- https://security-tracker.debian.org/tracker/CVE-2024-56683
- https://ubuntu.com/security/CVE-2024-56683
- https://git.kernel.org/linus/223ee2567a55e4f80315c768d2969e6a3b9fb23d
Frequently Asked Questions
What is the severity of CVE-2024-56683?
CVE-2024-56683 is considered a high severity vulnerability due to its potential to cause a fatal system hang.
How do I fix CVE-2024-56683?
To fix CVE-2024-56683, you should update your Linux kernel to the latest stable version that includes the security patch.
Which versions of Linux Kernel are affected by CVE-2024-56683?
CVE-2024-56683 affects all versions of the Linux kernel that include the vulnerable drm/vc4 HDMI code prior to the patch.
What are the potential consequences of CVE-2024-56683 if exploited?
Exploitation of CVE-2024-56683 can lead to a system hang when reading debug registers while the HDMI is disconnected.
Is there a workaround for CVE-2024-56683 before applying the patch?
A temporary workaround for CVE-2024-56683 is to avoid accessing the debug registers when the HDMI is disconnected.
- agent/title
- agent/severity
- agent/first-publish-date
- agent/type
- collector/nvd-api
- source/NVD
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/usn-cve
- source/Ubuntu
- collector/nvd-cve
- agent/event
- agent/references
- agent/source
- agent/softwarecombine
- agent/description
- agent/tags
- collector/security-tracker-debian
- source/Debian
- vendor/linux
- canonical/linux kernel
- package-manager/debian