PT-2026-36461 · Linux · Linux Kernel

Published 2026-05-01 · Updated 2026-05-02 · CVE-2026-43044

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A DMA corruption issue exists in the caam crypto component when using long hmac keys. When a key exceeds the block size, it is copied and hashed into the real key. The memory allocated for this copy was not properly rounded to DMA cache alignment, which could lead to the corruption of neighboring memory.

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

Related Identifiers

CVE-2026-43044

Affected Products

Linux Kernel

References · 16

• https://nvd.nist.gov/vuln/detail/CVE-2026-43044 · Security Note
• https://git.kernel.org/stable/c/5ddfdcbe10dc5f97afc4e46ca22be2be717e8caf · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43044 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43044 · Security Note
• https://git.kernel.org/stable/c/f2af8be110bde26b3e3354efdfdda97f426306a4 · Patch
• https://git.kernel.org/stable/c/68feed135a0c7243a9275ae7e6a18260f755f52b · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-43044 · Vendor Advisory
• https://git.kernel.org/stable/c/c0c133e0225d87aad326bb90bbce9bdd6fde3cbb · Patch
• https://ubuntu.com/security/CVE-2026-43044 · Vendor Advisory
• https://git.kernel.org/stable/c/a7ecf06d3ee06e9b3322e1e7b003ea5c6f6e135a · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-43044 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43044 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2026-43044 · Note
• https://git.kernel.org/linus/5ddfdcbe10dc5f97afc4e46ca22be2be717e8caf · Note
• https://twitter.com/vuldb/status/2050248780835111075 · Twitter Post