CVE-2026-31747: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: comedi: me4000: Fix potential overrun of firmware buffer `me4000_xilinx_download()` loads the firmware that was requested by `request_firmware()`. It is possible for it to overrun the source buffer because it blindly trusts the file format. It reads a data stream length from the first 4 bytes into variable `file_length` and reads the data stream contents of length `file_length` from offset 16 onwards. Add a test to ensure that the supplied firmware is long enough to contain the header and the data stream. On failure, log an error and return `-EINVAL`. Note: The firmware loading was totally broken before commit ac584af59945 ("staging: comedi: me4000: fix firmware downloading"), but that is the most sensible target for this fix.

Засегнати продукти

• Linux Linux: ac584af599452748187cf6d7865b1607c54ee443 преди 8ddfe6495c245226a30d8b36e2f4a7aa7712e8d6; ac584af599452748187cf6d7865b1607c54ee443 преди 64b24b713e1a3ea6624480594b4f8c2ff86502f2; ac584af599452748187cf6d7865b1607c54ee443 преди f72b5567f7c117b46b4058dc6a0c7554f8565561; ac584af599452748187cf6d7865b1607c54ee443 преди 1603dd471f47762e9d1f52304edb3e49a7e62655; ac584af599452748187cf6d7865b1607c54ee443 преди 99f31aa98ab6e3805c455b65bcd01b3d48bdf1a5; ac584af599452748187cf6d7865b1607c54ee443 преди eae19cab44204537f79146f15a51811b13227c38; ac584af599452748187cf6d7865b1607c54ee443 преди de3f923ae7d91480ed3ecea1b1e1fc0dc25b597d; ac584af599452748187cf6d7865b1607c54ee443 преди 3fb43a7a5b44713f892c58ead2e5f3a1bc9f4ee7
• Linux Linux: 3.19; преди 3.19; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.168 до 6.1.*; 6.6.134 до 6.6.*; 6.12.81 до 6.12.*; 6.18.22 до 6.18.*; 6.19.12 до 6.19.*; 7.0 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-31747
• https://nvd.nist.gov/vuln/detail/CVE-2026-31747
• https://git.kernel.org/stable/c/8ddfe6495c245226a30d8b36e2f4a7aa7712e8d6
• https://git.kernel.org/stable/c/64b24b713e1a3ea6624480594b4f8c2ff86502f2
• https://git.kernel.org/stable/c/f72b5567f7c117b46b4058dc6a0c7554f8565561
• https://git.kernel.org/stable/c/1603dd471f47762e9d1f52304edb3e49a7e62655
• https://git.kernel.org/stable/c/99f31aa98ab6e3805c455b65bcd01b3d48bdf1a5
• https://git.kernel.org/stable/c/eae19cab44204537f79146f15a51811b13227c38
• https://git.kernel.org/stable/c/de3f923ae7d91480ed3ecea1b1e1fc0dc25b597d
• https://git.kernel.org/stable/c/3fb43a7a5b44713f892c58ead2e5f3a1bc9f4ee7