CVE-2026-97610: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix uninitialized return value in netfs_unbuffered_write() If preparation of the first subrequest fails, netfs_unbuffered_write() exits its loop before ret is initialized. The empty-iterator check can do the same. For synchronous writes, netfs_unbuffered_write_iter_locked() may then return an unrelated error instead of wreq->error. This is reachable through CIFS if cifs_prepare_write() fails to reopen the file or obtain credits. Initialize ret to 0 so the caller returns wreq->error if no data was written, or the number of bytes already written otherwise. Found with Clang's -Wconditional-uninitialized.

Засегнати продукти

• Linux Linux: 72d08d2839649d1c5efbe375751f4473fa4486af преди 3d038eebdbd400c3bc4b66bd8aa0dff0c2bcce26; a0b4c7a49137ed21279f354eb59f49ddae8dffc2 преди 2e38d500471d097cda87d7d374bbc1b13493075d; a0b4c7a49137ed21279f354eb59f49ddae8dffc2 преди f18e8774f4d3137fa0a5fb8ffa83d59a719666d8; 0c29f6d63122a0168d67cb8ecde5b4cf7fe4acb0; 6.18.17 преди 6.18.53; 6.19.7 преди 6.20
• Linux Linux: 7.0; преди 7.0; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

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-2026-97610
• https://nvd.nist.gov/vuln/detail/CVE-2026-97610
• https://git.kernel.org/stable/c/3d038eebdbd400c3bc4b66bd8aa0dff0c2bcce26
• https://git.kernel.org/stable/c/2e38d500471d097cda87d7d374bbc1b13493075d
• https://git.kernel.org/stable/c/f18e8774f4d3137fa0a5fb8ffa83d59a719666d8