CVE-2026-89612
CVE CVE-2026-89612EUVD EUVD-2026-76524Published 2026-09-11T19:45:13.000ZLast changed 2026-09-13T06:31:50.000ZCVSS 9.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ntfs: reject invalid MFT LCNs from boot sector The NTFS boot sector stores the MFT and MFTMirr locations as unsigned 64-bit LCNs, but parse_ntfs_boot_sector() decoded them into an s64. A crafted high-bit value could therefore become negative and pass the existing upper-bound check. The invalid value then propagated into the MFT zone allocator and could result in an out-of-bounds access to lcn_empty_bits_per_page.
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; patch: 7.2.4; 11ccc9107dc460de28af90fac1f42404d9802735 <cc9d09fef78410bcd37ac05168cbd5f6dd75d3d2; 11ccc9107dc460de28af90fac1f42404d9802735 <8f8420b68a6f05ca2b03779d8208814ec539b9e5; 7.1; patch: 7.3-rc1
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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