CVE-2026-89697

CVE CVE-2026-89697EUVD EUVD-2026-76609Published 2026-09-11T19:46:15.000ZLast changed 2026-09-14T12:02:04.000ZCVSS 9.1

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: nfsd: add fh_want_write() for early-verified SETATTR in nfsd_proc_setattr() The BOTH_TIME_SET branch calls fh_verify() early so setattr_prepare() can inspect the dentry. This causes nfsd_setattr() to skip fh_want_write(), so notify_change() runs without a mount write reference. Add the missing fh_want_write() call after the early fh_verify().

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 cc265089ce1b176dde963c74b53593446ee7f99a <15ca3b64a69caa6194bed8f98a20ed90a11c11dd; cc265089ce1b176dde963c74b53593446ee7f99a <d823bf9285cdf4514873b85ab5a888878dd4e8f4; patch: 0; patch: 7.3-rc1; cc265089ce1b176dde963c74b53593446ee7f99a <c4a409b86a92815181a8e9395c6bf1696ad19175; cc265089ce1b176dde963c74b53593446ee7f99a <9229d824b938f4fb0ea7a5dddade51735e6fe6f9; patch: 7.2.4; cc265089ce1b176dde963c74b53593446ee7f99a <3eec9d791968c177a4a8cda9af5c04f79dae09cb; cc265089ce1b176dde963c74b53593446ee7f99a <4e475be769aa9f7a2c1ce55a2b8592cfccacddcc; patch: 5.10.270; patch: 6.12.109; patch: 6.1.188; patch: 6.18.50; patch: 6.6.157; cc265089ce1b176dde963c74b53593446ee7f99a <2150305134889fb2fc25228d35353bd2f6f29500; 3.18.46 <3.19; 1cb57d81cf20fe24b9e2e1daf57bfbdc24b77cd8; 4.2; patch: 5.15.221; cc265089ce1b176dde963c74b53593446ee7f99a <533964d420d385e11b08dd4c56c66ef5dcccaf08

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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