CVE-2024-56540: accel/ivpu: Prevent recovery invocation during probe and resume
First published: Fri Dec 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Prevent recovery invocation during probe and resume Refactor IPC send and receive functions to allow correct handling of operations that should not trigger a recovery process. Expose ivpu_send_receive_internal(), which is now utilized by the D0i3 entry, DCT initialization, and HWS initialization functions. These functions have been modified to return error codes gracefully, rather than initiating recovery. The updated functions are invoked within ivpu_probe() and ivpu_resume(), ensuring that any errors encountered during these stages result in a proper teardown or shutdown sequence. The previous approach of triggering recovery within these functions could lead to a race condition, potentially causing undefined behavior and kernel crashes due to null pointer dereferences.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=6.8<6.11.11 | |
| Linux Kernel | >=6.12<6.12.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.21-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/cac822772c4dc27a285f09caf30072ab76d2bf38
- https://git.kernel.org/stable/c/362ef76020ea6219a4df4ac5b738672b59527239
- https://git.kernel.org/stable/c/5eaa497411197c41b0813d61ba3fbd6267049082
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56540
- https://nvd.nist.gov/vuln/detail/CVE-2024-56540
- https://launchpad.net/bugs/cve/CVE-2024-56540
- https://security-tracker.debian.org/tracker/CVE-2024-56540
- https://ubuntu.com/security/CVE-2024-56540
- https://git.kernel.org/linus/5eaa497411197c41b0813d61ba3fbd6267049082
Frequently Asked Questions
What is the severity of CVE-2024-56540?
CVE-2024-56540 is classified as a low-severity vulnerability in the Linux kernel.
How do I fix CVE-2024-56540?
To fix CVE-2024-56540, it is recommended to update the Linux kernel to version 6.12.2 or later.
What versions of the Linux kernel are affected by CVE-2024-56540?
CVE-2024-56540 affects Linux kernel versions between 6.8 and 6.11.11 and also includes 6.12.
What type of vulnerability is CVE-2024-56540?
CVE-2024-56540 is a vulnerability related to improper handling of IPC send and receive functions in the Linux kernel.
What issues can CVE-2024-56540 cause if not addressed?
If CVE-2024-56540 is not addressed, it may lead to unintended recovery process triggers during probe and resume operations.
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