CVE-2024-46710
MEDIUM EPSS 11.1%
Published Sep 13, 20241y ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Published Sep 13, 2024 1y ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Prevent unmapping active read buffers The kms paths keep a persistent map active to read and compare the cursor buffer. These maps can race with each other in simple scenario where: a) buffer "a" mapped for update b) buffer "a" mapped for compare c) do the compare d) unmap "a" for compare e) update the cursor f) unmap "a" for update At step "e" the buffer has been unmapped and the read contents is bogus. Prevent unmapping of active read buffers by simply keeping a count of how many paths have currently active maps and unmap only when the count reaches 0.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
11.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Affected Products 6
References 5
- git.kernel.org https://git.kernel.org/stable/c/0851b1ec650adadcaa23ec96daad95a55bf966f0
- git.kernel.org https://git.kernel.org/stable/c/58a3714db4d9dcaeb9fc4905141e17b9f536c0a5
- git.kernel.org https://git.kernel.org/stable/c/aba07b9a0587f50e5d3346eaa19019cf3f86c0ea
- git.kernel.org https://git.kernel.org/stable/c/d5228d158e4c0b1663b3983044913c15c3d0135e
- lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Remediation
- git.kernel.org https://git.kernel.org/stable/c/aba07b9a0587f50e5d3346eaa19019cf3f86c0ea
- git.kernel.org https://git.kernel.org/stable/c/d5228d158e4c0b1663b3983044913c15c3d0135e