drm/i915/dsi: Don't do DSC horizontal timing adjustments in command mode
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)
CVE-2026-31767
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-31767
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "53693f02d80e0a909e76c2a25f8aac8515f959db",
"lessThan": "481f7a463ae4bea9503ae7fa1481ad75dc872af4",
"versionType": "git"
},
{
"status": "affected",
"version": "53693f02d80e0a909e76c2a25f8aac8515f959db",
"lessThan": "55efe8402f46af8399c8b634a18b130a05fd7820",
"versionType": "git"
},
{
"status": "affected",
"version": "53693f02d80e0a909e76c2a25f8aac8515f959db",
"lessThan": "86e926b108880c0109b8635e459450447156aeb7",
"versionType": "git"
},
{
"status": "affected",
"version": "53693f02d80e0a909e76c2a25f8aac8515f959db",
"lessThan": "33b5336e4fd8ba0e40a12989cadb3f5534a0f9e4",
"versionType": "git"
},
{
"status": "affected",
"version": "53693f02d80e0a909e76c2a25f8aac8515f959db",
"lessThan": "4dfce79e098915d8e5fc2b9e1d980bc3251dd32c",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/i915/display/icl_dsi.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.81",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.22",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.12",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/i915/display/icl_dsi.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31767
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46245 · Revision 1
- Added to Heist Feed
- Publisher date