CVE-2024-46837
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
Affected products
10cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.10,<6.10.10
- cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*
- (no CPE)range: 6.10
- (no CPE)
Patches
Vulnerability mechanics
References
2News mentions
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