CVE-2024-46837

drm/panthor: Restrict high priorities on group_create

Description

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Restrict high priorities on group_create We were allowing any users to create a high priority group without any permission checks. As a result, this was allowing possible denial of service. We now only allow the DRM master or users with the CAP_SYS_NICE capability to set higher priorities than PANTHOR_GROUP_PRIORITY_MEDIUM. As the sole user of that uAPI lives in Mesa and hardcode a value of MEDIUM [1], this should be safe to do. Additionally, as those checks are performed at the ioctl level, panthor_group_create now only check for priority level validity. [1]https://gitlab.freedesktop.org/mesa/mesa/-/blob/f390835074bdf162a63deb0311d1a6de527f9f89/src/gallium/drivers/panfrost/pan_csf.c#L1038

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/33eb0344e186a2bcc257c6c5a6e65c1cb42adb4a	patch
https://git.kernel.org/stable/c/5f7762042f8a5377bd8a32844db353c0311a7369	patch

Frequently Asked Questions

What is the severity of CVE-2024-46837?: CVE-2024-46837 has been scored as a medium severity vulnerability.
How to fix CVE-2024-46837?: To fix CVE-2024-46837, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-46837 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-46837 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-46837?: CVE-2024-46837 affects Linux Linux, Linux Linux.

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