PT-2026-43962 · Linux · Linux Kernel

CVE-2026-46094 · Published 2026-05-27 · Updated 2026-07-21

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An out-of-bounds access issue exists in the check xattrs() function of the ext4 file system. The bounds check for the next extended attribute (xattr) entry uses a comparison that allows the next pointer to point within a few bytes of the end boundary. During the subsequent loop iteration, the IS LAST ENTRY() function reads 4 bytes, which can result in reading memory beyond the valid xattr region.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-46094

OPENSUSE-SU-2026:10954-1

OPENSUSE-SU-2026:20965-1

SUSE-SU-2026:22099-1

SUSE-SU-2026:22108-1

SUSE-SU-2026:22112-1

SUSE-SU-2026:22117-1

SUSE-SU-2026:22127-1

SUSE-SU-2026:22137-1

SUSE-SU-2026:22433-1

SUSE-SU-2026:22458-1

SUSE-SU-2026:2482-1

SUSE-SU-2026:2591-1

USN-8488-1

USN-8488-2

USN-8489-1

USN-8507-1

USN-8567-1

USN-8569-1

USN-8574-1

Affected Products

Linux Kernel

References · 1914

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46094.json · Exploit
• https://ubuntu.com/security/CVE-2026-46066 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53063 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53082 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46110 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23365 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31747 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-53315 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-52998 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43016 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-46094 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46130 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-43503 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23318 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8574-1 · Vendor Advisory