---
id: CVE-2026-98886
title: 'drm/gma500: return errors from Oaktrail HDMI I2C reads'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/gma500: return errors from Oaktrail HDMI I2C reads

  xfer_read() waits for the HDMI I2C transaction to reach
  I2C_TRANSACTION_DONE, but it ignores both timeout and si…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    09a950950e7e4e74e021e60941c8e816ef1b4f71
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    898d209157fe2a245f7d9fe28c5921037d8b5033
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    15c6d7f7127a53b7312232178ecf03e5850161d2
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    8add43887cca1fe11a0ded62199ce726901d3f20
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    f85e8224bd4e1a0939cbfe13a6220fbddf61127c
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    c268df0653ab07bafc3d191e74ea097e3d9b9e69
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    9b5ce5c496efd20c1c662cedba88465d39ec1f93
  - Linux < 5.10.271
  - Linux < 5.15.222
  - Linux < 6.1.189
  - Linux < 6.6.158
  - Linux < 6.12.111
  - Linux < 6.18.53
  - Linux (all versions)
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T11:37:43.338Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98886'
references:
  - url: 'https://git.kernel.org/stable/c/09a950950e7e4e74e021e60941c8e816ef1b4f71'
  - url: 'https://git.kernel.org/stable/c/898d209157fe2a245f7d9fe28c5921037d8b5033'
  - url: 'https://git.kernel.org/stable/c/15c6d7f7127a53b7312232178ecf03e5850161d2'
  - url: 'https://git.kernel.org/stable/c/8add43887cca1fe11a0ded62199ce726901d3f20'
  - url: 'https://git.kernel.org/stable/c/f85e8224bd4e1a0939cbfe13a6220fbddf61127c'
  - url: 'https://git.kernel.org/stable/c/c268df0653ab07bafc3d191e74ea097e3d9b9e69'
  - url: 'https://git.kernel.org/stable/c/9b5ce5c496efd20c1c662cedba88465d39ec1f93'
tags:
  - cve.org
ingestedAt: '2026-10-23T13:24:55.580Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

drm/gma500: return errors from Oaktrail HDMI I2C reads

xfer_read() waits for the HDMI I2C transaction to reach
I2C_TRANSACTION_DONE, but it ignores both timeout and signal returns from
wait_for_completion_interruptible_timeout().  If the interrupt never
advances the transaction state, the loop can wait forever.

Return -ETIMEDOUT when the completion wait expires, propagate interrupted
waits, and make the I2C master_xfer callback return the first transfer
error instead of reporting a successful message count.

## Affected

- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 09a950950e7e4e74e021e60941c8e816ef1b4f71`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 898d209157fe2a245f7d9fe28c5921037d8b5033`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 15c6d7f7127a53b7312232178ecf03e5850161d2`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8add43887cca1fe11a0ded62199ce726901d3f20`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f85e8224bd4e1a0939cbfe13a6220fbddf61127c`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c268df0653ab07bafc3d191e74ea097e3d9b9e69`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9b5ce5c496efd20c1c662cedba88465d39ec1f93`
- `Linux < 5.10.271`
- `Linux < 5.15.222`
- `Linux < 6.1.189`
- `Linux < 6.6.158`
- `Linux < 6.12.111`
- `Linux < 6.18.53`
- `Linux (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.