PT-2026-44272 · Linux · Linux Kernel

Published 2026-05-28 · Updated 2026-06-10 · CVE-2026-46149

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 A buffer overflow occurs in the target tg pt gp members show() function when formatting LUN paths using snprintf() into a 256-byte stack buffer. Because iSCSI IQN names can reach 223 bytes, the return value of snprintf() may exceed the buffer size. The subsequent memcpy() operation reads past the stack buffer based on this return value, potentially copying adjacent stack contents to the sysfs reader. When CONFIG FORTIFY SOURCE is enabled, this action triggers fortify panic().

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

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

CVE-2026-46149

ECHO-A5AF-263B-4D2E

OPENSUSE-SU-2026:10954-1

Affected Products

Linux Kernel

References · 293

• https://nvd.nist.gov/vuln/detail/CVE-2026-46149 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-46149 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-46149 · Security Note
• https://git.kernel.org/stable/c/72cc5ea7ef32bb5fa38bf0dd2e56fcd73aa8c89e · Patch
• https://git.kernel.org/stable/c/1f678d13e939f91840cb1ebe9b88544923539d3c · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2026:10954-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-46149 · Vendor Advisory
• https://git.kernel.org/stable/c/d3cc9d490c207d57a289054397349f6f8c90354e · Patch
• https://git.kernel.org/stable/c/12f2201a56957ba020392223a7393a5eba080c1b · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46149 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-46149 · Vendor Advisory
• https://git.kernel.org/stable/c/772a896a56e0e3ef9424a025cec9176f9d8f4552 · Patch
• https://git.kernel.org/stable/c/e501154f9d82c95d2719bcbbaf679d8fd3226ef7 · Patch
• https://ubuntu.com/security/CVE-2026-46149 · Vendor Advisory
• https://git.kernel.org/stable/c/db0a4759d62cad4ff891e2d81ae4be73bb57f4a4 · Patch