Linux Kernel DRM/gma500: HDMI I2C Read Timeout (CVE-2026-98886)
CVE-2026-98886 Published on October 23, 2026
drm/gma500: return errors from Oaktrail HDMI I2C reads
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.
Products Associated with CVE-2026-98886
stack.watch emails you whenever new vulnerabilities are published in Linux Kernel or Canonical Ubuntu Linux. Just hit a watch button to start following.
Affected Versions
Linux:- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below 09a950950e7e4e74e021e60941c8e816ef1b4f71 is affected.
- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below 898d209157fe2a245f7d9fe28c5921037d8b5033 is affected.
- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below 15c6d7f7127a53b7312232178ecf03e5850161d2 is affected.
- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below 8add43887cca1fe11a0ded62199ce726901d3f20 is affected.
- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below f85e8224bd4e1a0939cbfe13a6220fbddf61127c is affected.
- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below c268df0653ab07bafc3d191e74ea097e3d9b9e69 is affected.
- Version 1e585b52fd8ea59792634bc31d227eb3456af22e and below 9b5ce5c496efd20c1c662cedba88465d39ec1f93 is affected.
- Version 3.1 is affected.
- Before 3.1 is unaffected.
- Version 5.10.271, <= 5.10.* is unaffected.
- Version 5.15.222, <= 5.15.* is unaffected.
- Version 6.1.189, <= 6.1.* is unaffected.
- Version 6.6.158, <= 6.6.* is unaffected.
- Version 6.12.111, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2, <= * is unaffected.