CVE-2026-89612

A flaw was found in the Linux kernel's NTFS filesystem driver. A local attacker could provide a specially crafted NTFS boot sector containing an invalid Master File Table MFT Logical Cluster Number LCN. Due to an integer overflow during parsing, this could lead to an out-of-bounds memory access...

EUVD-2026-76524

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 parsentfsbootsector decoded them into an s64. A crafted high-bit value could therefore become...

CVE-2026-89612

CVE-2026-89612 affects the Linux kernel NTFS filesystem driver . The root cause is a type mismatch in parse_ntfs_boot_sector(): MFT and MFTMirr locations are stored as unsigned 64-bit LCNs in the NTFS boot sector but decoded into an s64 , allowing a crafted high-bit value to become negative and b...

CVE-2026-89612 ntfs: reject invalid MFT LCNs from boot sector

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 parsentfsbootsector decoded them into an s64. A crafted high-bit value could therefore become...