CVE-2024-41011
drm/amdkfd: don't allow mapping the MMIO HDP page with large pages
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: don't allow mapping the MMIO HDP page with large pages We don't get the right offset in that case. The GPU has an unused 4K area of the register BAR space into which you can remap registers. We remap the HDP flush registers into this space to allow userspace (CPU or GPU) to flush the HDP when it updates VRAM. However, on systems with >4K pages, we end up exposing PAGE_SIZE of MMIO space.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.3
References 7
git.kernel.org
- stable/c/009c4d78bcf07c4ac2e3dd9f275b4eaa72b4f884
- stable/c/f7276cdc1912325b64c33fcb1361952c06e55f63
- stable/c/8ad4838040e5515939c071a0f511ce2661a0889d
- stable/c/89fffbdf535ce659c1a26b51ad62070566e33b28
- stable/c/4b4cff994a27ebf7bd3fb9a798a1cdfa8d01b724
- stable/c/6186c93560889265bfe0914609c274eff40bbeb5
- stable/c/be4a2a81b6b90d1a47eaeaace4cc8e2cb57b96c7