CVE-2024-46837: drm/panthor: Restrict high priorities on group_create
First published: Fri Sep 27 2024(Updated: )
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
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.10<6.10.10 | |
| Linux Kernel | =6.11-rc1 | |
| Linux Kernel | =6.11-rc2 | |
| Linux Kernel | =6.11-rc3 | |
| Linux Kernel | =6.11-rc4 | |
| Linux Kernel | =6.11-rc5 | |
| Linux Kernel | =6.11-rc6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-46837?
CVE-2024-46837 has a severity rating that may allow for a denial of service attack.
How do I fix CVE-2024-46837?
To fix CVE-2024-46837, users should update their Linux kernel to a patched version beyond 6.10.10 or any 6.11 release candidate after rc6.
Which Linux kernel versions are affected by CVE-2024-46837?
CVE-2024-46837 affects the Linux kernel versions from 6.10 up to 6.10.10 and specific 6.11 release candidates rc1 through rc6.
What type of vulnerability is CVE-2024-46837?
CVE-2024-46837 is a permission check vulnerability that allows unauthorized high priority group creation.
Can CVE-2024-46837 lead to data loss?
While CVE-2024-46837 primarily allows for denial of service, it does not directly cause data loss.
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