CVE-2024-26824: crypto: algif_hash - Remove bogus SGL free on zero-length error path
First published: Wed Apr 17 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - Remove bogus SGL free on zero-length error path When a zero-length message is hashed by algif_hash, and an error is triggered, it tries to free an SG list that was never allocated in the first place. Fix this by not freeing the SG list on the zero-length error path.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.5<6.6.18 | |
| Linux Kernel | >=6.7<6.7.6 | |
| Linux Kernel | =6.8-rc1 | |
| Linux Kernel | =6.8-rc2 | |
| Linux Kernel | =6.8-rc3 | |
| 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/24c890dd712f6345e382256cae8c97abb0406b70
- https://git.kernel.org/stable/c/775f3c1882a493168e08fdb8cde0865c8f3a8a29
- https://git.kernel.org/stable/c/9c82920359b7c1eddaf72069bcfe0ffddf088cd0
- https://launchpad.net/bugs/cve/CVE-2024-26824
- https://git.kernel.org/linus/24c890dd712f6345e382256cae8c97abb0406b70
- https://security-tracker.debian.org/tracker/CVE-2024-26824
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26824
- https://nvd.nist.gov/vuln/detail/CVE-2024-26824
- https://ubuntu.com/security/CVE-2024-26824
Frequently Asked Questions
What is the severity of CVE-2024-26824?
CVE-2024-26824 is considered to be of low severity as it affects error handling related to zero-length message hashing in the Linux kernel.
How do I fix CVE-2024-26824?
To fix CVE-2024-26824, update your Linux kernel to versions 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, 6.12.10-1, or 6.12.11-1.
Which Linux kernel versions are affected by CVE-2024-26824?
CVE-2024-26824 affects Linux kernel versions prior to 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, 6.12.10-1, and 6.12.11-1.
What component of the Linux kernel is affected by CVE-2024-26824?
CVE-2024-26824 affects the crypto subsystem, specifically the algif_hash module.
Is CVE-2024-26824 a remote code execution vulnerability?
CVE-2024-26824 is not a remote code execution vulnerability, but rather an issue with memory management in error handling.
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