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CVE-2026-89878

media: s2255: check firmware size before reading trailing marker

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 6f6a5b0b0a84c2de0e152f2841e57bc226db924f; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 8eca0f85eeb0789be40e637bcf9a21c4265b6c6f; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in ffc27411ea60b8a09f1fea3d664b65210fdeb454; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 5626785b0e4665326e4d96736c106161da09b2f0; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 3e03f1209c1c8a45a7bc559f4ecd79d9b33f706d; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 342632a4d8ba3fafc1556deee0b7a48dd7860336; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 7d221859ba45d7228d0138c9a3e55bd3bb31e14e; From 14d962602c8bf86e63c9b9272be1f0360d0a448a · fixed in 330f2936ab768c7215322a476f033143e8891d28

  • Linux Linux

    2.6.28

  • KernelLinux

    From 2.6.28 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5

References 8

git.kernel.org