Re: CVE-2024-39471: drm/amdgpu: add error handle to avoid out-of-bounds

(Mail V2: Send to correct mailing list and CCing relevant people.)

On Tue, 25 Jun 2024 16:29:04 +0200, Greg Kroah-Hartman wrote:

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: add error handle to avoid out-of-bounds

if the sdma_v4_0_irq_id_to_seq return -EINVAL, the process should be stop to avoid out-of-bounds read, so directly return -EINVAL.

The Linux kernel CVE team has assigned CVE-2024-39471 to this issue.

This commit has a bug which was fixed by 6769a23697f1. It should be immediately backported, otherwise this "fix" doesn't do anything since gcc will optimise out the check.

Thanks, Siddh