CVE-2026-31767
What it is
In the Linux kernel, the following vulnerability has been resolved: drm/i915/dsi: Don't do DSC horizontal timing adjustments in command mode Stop adjusting the horizontal timing values based on the compression ratio in command mode. Bspec seems to be telling us to do this only in video mode, and this is also how the Windows driver does things. This should also fix a div-by-zero on some machines because the adjusted htotal ends up being so small that we end up with line_time_us==0 when trying to determine the vtotal value in command mode. Note that this doesn't actually make the display on the Huawei Matebook E work, but at least the kernel no longer explodes when the driver loads. (cherry picked from commit 0b475e91ecc2313207196c6d7fd5c53e1a878525)
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-369
- Record status
- Modified
Affected
- Linux Kernel < 6.12.81
- Linux Kernel < 6.18.22
- Linux Kernel < 6.19.12
- Linux Kernel 7.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-31767.md and follow it. Check whether this project is affected by CVE-2026-31767. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/33b5336e4fd8ba0e40a12989cadb3f5534a0f9e4
- https://git.kernel.org/stable/c/4dfce79e098915d8e5fc2b9e1d980bc3251dd32c
- https://git.kernel.org/stable/c/55efe8402f46af8399c8b634a18b130a05fd7820
- https://git.kernel.org/stable/c/86e926b108880c0109b8635e459450447156aeb7
References
- https://git.kernel.org/stable/c/33b5336e4fd8ba0e40a12989cadb3f5534a0f9e4
- https://git.kernel.org/stable/c/481f7a463ae4bea9503ae7fa1481ad75dc872af4
- https://git.kernel.org/stable/c/4dfce79e098915d8e5fc2b9e1d980bc3251dd32c
- https://git.kernel.org/stable/c/55efe8402f46af8399c8b634a18b130a05fd7820
- https://git.kernel.org/stable/c/80cc84bdc49addaee6b6e4f735f574ab5a424c42
- https://git.kernel.org/stable/c/86e926b108880c0109b8635e459450447156aeb7