PT-2026-34344 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-19 · CVE-2026-31439

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description An issue exists in the dmaengine xilinx xdma component regarding regmap initialization error handling. The function devm regmap init mmio() returns an ERR PTR() upon encountering an error rather than NULL, leading to incorrect error checks and error messages.

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

Related Identifiers

CVE-2026-31439

Affected Products

Linux Kernel

References · 17

• https://nvd.nist.gov/vuln/detail/CVE-2026-31439 · Security Note
• https://ubuntu.com/security/CVE-2026-31439 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31439 · Security Note
• https://git.kernel.org/stable/c/f27197ccfd2ecd2c71f27fd57c6d507e892ad24d · Patch
• https://git.kernel.org/stable/c/59f6ccd0f3345be2e8a78bdef2103e93f180633a · Patch
• https://git.kernel.org/stable/c/4b6e1da50b22e5528b9003f376a3cecccce4decc · Patch
• https://git.kernel.org/stable/c/e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31439 · Vendor Advisory
• https://git.kernel.org/stable/c/9787b3d9b908785b40bc3f2e6d7082fdb8fdd98a · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31439 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31439 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31439 · Vendor Advisory
• https://t.me/cveNotify/164118 · Telegram Post
• https://twitter.com/infoflowcloud/status/2046982048967979280 · Twitter Post
• https://git.kernel.org/linus/e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8 · Note