In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate ef->size covers the record's name and value When an EA record has a non-zero ef->size, ntfs_read_ea() only checks that the record fits in the remaining buffer (ea_size > bytes), not that ef->size is large enough to hold the record's own name_len + 1 + elength. A crafted image can pass validation with, e.g., ef->size = 24 but elength = 0xffff. ntfs_get_ea() then trusts elength and copies it out of the undersized record, reading past the kmalloc(info->size) allocation and leaking heap memory to userspace via getxattr(): BUG: KASAN: slab-out-of-bounds in ntfs_get_ea (fs/ntfs3/xattr.c:302) Read of size 65535 at addr ffff888100794550 by task exploit __asan_memcpy (mm/kasan/shadow.c:105) ntfs_get_ea (fs/ntfs3/xattr.c:302) ntfs_getxattr (fs/ntfs3/xattr.c:848) __vfs_getxattr (fs/xattr.c:441) vfs_getxattr (fs/xattr.c:474) do_getxattr (fs/xattr.c:800) path_getxattrat (fs/xattr.c:868) do_syscall_64 (arch/x86/entry/syscall_64.c:94) The buggy address is located 80 bytes inside of allocated 84-byte region in cache kmalloc-96 Compute the size the record needs and require ef->size to cover it.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate ef->size covers the
    record's name and value When an EA record has a non-zero ef->size, ntfs_read_ea() only checks that the
    record fits in the remaining buffer (ea_size > bytes), not that ef->size is large enough to hold the
    record's own name_len + 1 + elength. A crafted image can pass validation with, e.g., ef->size = 24 but
    elength = 0xffff. ntfs_get_ea() then trusts elength and copies it out of the undersized record, reading
    past the kmalloc(info->size) allocation and leaking heap memory to userspace via getxattr(): BUG: KASAN:
    slab-out-of-bounds in ntfs_get_ea (fs/ntfs3/xattr.c:302) Read of size 65535 at addr ffff888100794550 by
    task exploit __asan_memcpy (mm/kasan/shadow.c:105) ntfs_get_ea (fs/ntfs3/xattr.c:302) ntfs_getxattr
    (fs/ntfs3/xattr.c:848) __vfs_getxattr (fs/xattr.c:441) vfs_getxattr (fs/xattr.c:474) do_getxattr
    (fs/xattr.c:800) path_getxattrat (fs/xattr.c:868) do_syscall_64 (arch/x86/entry/syscall_64.c:94) The buggy
    address is located 80 bytes inside of allocated 84-byte region in cache kmalloc-96 Compute the size the
    record needs and require ef->size to cover it. (CVE-2026-89779)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - fs/ntfs3: validate ef->size covers the record's name and value When an EA record has a non-zero ef->size,     ntfs_read_ea() only checks that the record fits in the remaining buffer (ea_size > bytes), not that     ef->size is large enough to hold the record's own name_len + 1 + elength. A crafted image can pass     validation with, e.g., ef->size = 24 but elength = 0xffff. ntfs_get_ea() then trusts elength and copies it     out of the undersized record, reading past the kmalloc(info->size) allocation and leaking heap memory to     userspace via getxattr(): BUG: KASAN: slab-out-of-bounds in ntfs_get_ea (fs/ntfs3/xattr.c:302) Read of     size 65535 at addr ffff888100794550 by task exploit __asan_memcpy (mm/kasan/shadow.c:105) ntfs_get_ea     (fs/ntfs3/xattr.c:302) ntfs_getxattr (fs/ntfs3/xattr.c:848) __vfs_getxattr (fs/xattr.c:441) vfs_getxattr     (fs/xattr.c:474) do_getxattr (fs/xattr.c:800) path_getxattrat (fs/xattr.c:868) do_syscall_64     (arch/x86/entry/syscall_64.c:94) The buggy address is located 80 bytes inside of allocated 84-byte region     in cache kmalloc-96 Compute the size the record needs and require ef->size to cover it. (CVE-2026-89779)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
365279	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-3196)	Nessus	Amazon Linux Local Security Checks	Local	medium
365220	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-3197)	Nessus	Amazon Linux Local Security Checks	Local	medium
365194	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2026-117)	Nessus	Amazon Linux Local Security Checks	Local	critical
362907	Debian dla-4817 : ata-modules-6.12.107+deb12-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
469778	Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.505.8	Tenable Cloud Security	Google COS Security Checks	Local	critical
469778	Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.505.8	Tenable Self-Hosted Container Security	Google COS Security Checks	Local	critical
351155	Debian dsa-6528 : ata-modules-6.12.111+deb13-armmp-di - security update	Nessus	Debian Local Security Checks	Local	high
349305	Linux Distros Unpatched Vulnerability : CVE-2026-89779	Nessus	Misc.	Local	critical

Detections

Analytics

CVE-2026-89779

critical

Tenable Plugins

medium

medium

critical

high

critical

critical

high

critical