---
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 >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    09a950950e7e4e74e021e60941c8e816ef1b4f71
  - >-
    Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    898d209157fe2a245f7d9fe28c5921037d8b5033
  - >-
    Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    15c6d7f7127a53b7312232178ecf03e5850161d2
  - >-
    Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    8add43887cca1fe11a0ded62199ce726901d3f20
  - >-
    Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    f85e8224bd4e1a0939cbfe13a6220fbddf61127c
  - >-
    Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    c268df0653ab07bafc3d191e74ea097e3d9b9e69
  - >-
    Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e <
    9b5ce5c496efd20c1c662cedba88465d39ec1f93
  - Linux 3.1
published: '2026-10-23'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T06:56:10.643Z'
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
epss: 0.00187
epssPercentile: 0.08201
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 >= 1e585b52fd8ea59792634bc31d227eb3456af22e < 09a950950e7e4e74e021e60941c8e816ef1b4f71`
- `Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e < 898d209157fe2a245f7d9fe28c5921037d8b5033`
- `Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e < 15c6d7f7127a53b7312232178ecf03e5850161d2`
- `Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e < 8add43887cca1fe11a0ded62199ce726901d3f20`
- `Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e < f85e8224bd4e1a0939cbfe13a6220fbddf61127c`
- `Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e < c268df0653ab07bafc3d191e74ea097e3d9b9e69`
- `Linux >= 1e585b52fd8ea59792634bc31d227eb3456af22e < 9b5ce5c496efd20c1c662cedba88465d39ec1f93`
- `Linux 3.1`

## Remediation

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