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2026年9月16日

CVE-2026-89878 – In the Linux kernel, the following vulnerability has been resolved: media: s2255: check f

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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.