CVE-2026-72188

CVE CVE-2026-72188EUVD EUVD-2026-58946Published 2026-08-15T05:53:49.000ZLast changed 2026-08-17T05:41:17.000ZCVSS 9.1

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: ntfs: sanitize MFT references returned from ntfs_lookup_inode_by_name() ntfs_lookup_inode_by_name() returns MFT references read from directory index entries on disk. These values are untrusted, but the function can currently return an error-marked MFT reference to its callers without validating it. Callers later decode lookup failures with MREF_ERR(). A crafted NTFS image can set the MREF error bit while leaving the low bits as an arbitrary value, causing callers to consume a bogus pseudo-errno instead of treating the lookup result as corrupted on-disk metadata. Fix this at the source by normalizing every error-marked MFT reference returned from ntfs_lookup_inode_by_name() to ERR_MREF(-EIO). Apply this to all four directory lookup return paths so every caller gets a validated result without needing additional checks or an API change. This keeps the sanitization in the common lookup helper, which is cleaner than duplicating validation in each caller.

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: 0; 7.1; 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 <d97a36bae86a9a4021562ded2987f904e6bcb1d7; patch: 7.1.5; 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 <83f396d881c4fd312c7fd5fff2c157fc21104464; patch: 7.2

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

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Linux — Linux

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