VulnerabilityPublished 1 May 2026Updated 21 Oct 2026

CVE-2026-31767: Linux kernel · drm/i915/dsi: Don't do DSC horizontal timing adjustments in command mode

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in 481f7a463ae4bea9503ae7fa1481ad75dc872af4 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:30 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 481f7a463ae4bea9503ae7fa1481ad75dc872af4, 86e926b108880c0109b8635e459450447156aeb7, 55efe8402f46af8399c8b634a18b130a05fd7820 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 1 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 53693f02d80e0a909e76c2a25f8aac8515f959db, < 481f7a463ae4bea9503ae7fa1481ad75dc872af4	Fixed in 481f7a463ae4bea9503ae7fa1481ad75dc872af4
LinuxLinux	Affected ≥ 53693f02d80e0a909e76c2a25f8aac8515f959db, < 86e926b108880c0109b8635e459450447156aeb7	Fixed in 86e926b108880c0109b8635e459450447156aeb7
LinuxLinux	Affected ≥ 53693f02d80e0a909e76c2a25f8aac8515f959db, < 55efe8402f46af8399c8b634a18b130a05fd7820	Fixed in 55efe8402f46af8399c8b634a18b130a05fd7820
LinuxLinux	Affected ≥ 53693f02d80e0a909e76c2a25f8aac8515f959db, < 33b5336e4fd8ba0e40a12989cadb3f5534a0f9e4	Fixed in 33b5336e4fd8ba0e40a12989cadb3f5534a0f9e4
LinuxLinux	Affected ≥ 53693f02d80e0a909e76c2a25f8aac8515f959db, < 4dfce79e098915d8e5fc2b9e1d980bc3251dd32c	Fixed in 4dfce79e098915d8e5fc2b9e1d980bc3251dd32c
LinuxLinux	Affected =5.6	Fixed in–

Description

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)

References

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