CVE-2026-89612: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 11ccc9107dc460de28af90fac1f42404d9802735 преди 8f8420b68a6f05ca2b03779d8208814ec539b9e5; 11ccc9107dc460de28af90fac1f42404d9802735 преди cc9d09fef78410bcd37ac05168cbd5f6dd75d3d2
• Linux Linux: 7.1; преди 7.1; 7.2.4 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-2026-89612
• https://nvd.nist.gov/vuln/detail/CVE-2026-89612
• https://git.kernel.org/stable/c/8f8420b68a6f05ca2b03779d8208814ec539b9e5
• https://git.kernel.org/stable/c/cc9d09fef78410bcd37ac05168cbd5f6dd75d3d2