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Linux CVE-2026-89878

| EUVDEUVD-2026-80478
2026-09-16 Linux GHSA-8258-qf7j-hr2g

Lifecycle Timeline

2
Patch available
Sep 16, 2026 - 11:03 EUVD
CVE Published
Sep 16, 2026 - 10:31 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

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

media: s2255: check firmware size before reading trailing marker

s2255_probe() reads a 4-byte marker and version from the last 8 bytes of the firmware blob (fw->data[fw_size - 8] and [fw_size - 4]). If the firmware file is shorter than 8 bytes, fw_size - 8 underflows and the access reads out of bounds. Validate the firmware size before indexing.

Analysis

In the Linux kernel, the following vulnerability has been resolved: media: s2255: check firmware size before reading trailing marker s2255_probe() reads a 4-byte marker and version from the last 8 bytes of the firmware blob (fw->data[fw_size - 8] and [fw_size - 4]). If the firmware file is shorter than 8 bytes, fw_size - 8 underflows and the access reads out of bounds. …

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CVE-2026-89878 vulnerability details – vuln.today

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