CVE-2024-40964: ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind()
First published: Fri Jul 12 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l41: Possible null pointer dereference in cs35l41_hda_unbind() The cs35l41_hda_unbind() function clears the hda_component entry matching it's index and then dereferences the codec pointer held in the first element of the hda_component array, this is an issue when the device index was 0. Instead use the codec pointer stashed in the cs35l41_hda structure as it will still be valid.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.6<6.6.36 | |
| Linux Kernel | >=6.7<6.9.7 | |
| Linux Kernel | =6.10-rc1 | |
| Linux Kernel | =6.10-rc2 | |
| Linux Kernel | =6.10-rc3 | |
| Linux Kernel | =6.10-rc4 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.135-1 6.12.22-1 6.12.25-1 |
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Reference Links
- https://git.kernel.org/stable/c/19be722369c347f3af1c5848e303980ed040b819
- https://git.kernel.org/stable/c/6386682cdc8b41319c92fbbe421953e33a28840c
- https://git.kernel.org/stable/c/ff27bd8e17884f7cdefecb3f3817caadd6813dc0
- https://git.kernel.org/linus/6386682cdc8b41319c92fbbe421953e33a28840c
- https://security-tracker.debian.org/tracker/CVE-2024-40964
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-40964
- https://nvd.nist.gov/vuln/detail/CVE-2024-40964
- https://launchpad.net/bugs/cve/CVE-2024-40964
- https://ubuntu.com/security/CVE-2024-40964
Frequently Asked Questions
What is the severity of CVE-2024-40964?
CVE-2024-40964 has a medium severity level due to the potential for a null pointer dereference in the Linux kernel.
How do I fix CVE-2024-40964?
To mitigate CVE-2024-40964, update to the latest patched versions of the Linux kernel available from your distribution.
Which versions of the Linux kernel are affected by CVE-2024-40964?
CVE-2024-40964 affects Linux kernel versions between 6.6 and 6.9.7, along with several 6.10 release candidates.
Can CVE-2024-40964 cause system crashes?
Yes, due to the null pointer dereference, CVE-2024-40964 can potentially lead to system crashes or instability.
Is there a known exploit for CVE-2024-40964?
As of now, there are no publicly disclosed exploits specifically targeting CVE-2024-40964.
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