CVE-2024-46713: perf/aux: Fix AUX buffer serialization
In the Linux kernel, the following vulnerability has been resolved:
perf/aux: Fix AUX buffer serialization
Ole reported that event->mmapmutex is strictly insufficient to serialize the AUX buffer, add a per RB mutex to fully serialize it.
Note that in the lock order comment the perfevent::mmapmutex order was already wrong, that is, it nesting under mmaplock is not new with this patch.
Other sources
This CVE was automatically created from a reference found in an email or other text. If you are reading this, then this CVE entry is probably erroneous, since this text should be replaced by the official CVE description automatically.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1
Event History
Frequently Asked Questions
What is the severity of CVE-2024-46713?
CVE-2024-46713 has not been assigned a specific severity rating, but it addresses a critical serialization issue in the Linux kernel's AUX buffer.
How do I fix CVE-2024-46713?
To fix CVE-2024-46713, update your Linux kernel to the versions 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-2024-46713?
CVE-2024-46713 affects Linux kernel versions up to and including 5.10.223-1 and certain versions of 6.1.
What component of the Linux kernel is impacted by CVE-2024-46713?
CVE-2024-46713 impacts the 'perf/aux' component of the Linux kernel related to AUX buffer serialization.
Who reported CVE-2024-46713?
CVE-2024-46713 was reported by a user named Ole, indicating a deficiency in buffer serialization.