CVE-2026-97610

CVE CVE-2026-97610EUVD EUVD-2026-86741Published 2026-09-25T10:22:20.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux patch: 7.3-rc3; a0b4c7a49137ed21279f354eb59f49ddae8dffc2 <2e38d500471d097cda87d7d374bbc1b13493075d; 6.18.17 <6.18.53; 7.0; 6.19.7 <6.20; 72d08d2839649d1c5efbe375751f4473fa4486af <3d038eebdbd400c3bc4b66bd8aa0dff0c2bcce26; patch: 0; patch: 6.18.53; 0c29f6d63122a0168d67cb8ecde5b4cf7fe4acb0; patch: 7.2.7; a0b4c7a49137ed21279f354eb59f49ddae8dffc2 <f18e8774f4d3137fa0a5fb8ffa83d59a719666d8

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

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