PT-2026-39122 · Linux · Linux Kernel

Published 2026-05-08 · Updated 2026-05-20 · CVE-2026-43461

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 DMA mapping error handling issues exist in the aml sfc dma buffer setup() function. These include an unnecessary jump during the first DMA mapping failure, a double-unmap bug where sfc->daddr is unmapped twice during an info DMA mapping failure, and an incorrect unmap size where datalen is used instead of infolen when unmapping sfc->iaddr, potentially leading to incorrect DMA synchronization behavior.

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

Related Identifiers

CVE-2026-43461

Affected Products

Linux Kernel

References · 14

• https://security-tracker.debian.org/tracker/CVE-2026-43461 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-43461 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43461 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-43461 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-43461 · Vendor Advisory
• https://git.kernel.org/stable/c/0a83d6c9e149a176340190fa9cbadf2266db4c9a · Patch
• https://git.kernel.org/stable/c/b20b437666e1cb26a7c499d1664e8f2a0ac67000 · Patch
• https://ubuntu.com/security/CVE-2026-43461 · Vendor Advisory
• https://git.kernel.org/stable/c/c0b88f1176074f80140ed77fce909f254b7180ab · Patch
• https://twitter.com/vuldb/status/2052794465933500747 · Twitter Post
• https://git.kernel.org/linus/b20b437666e1cb26a7c499d1664e8f2a0ac67000 · Note
• https://t.me/cveNotify/164282 · Telegram Post
• https://twitter.com/CVEnew/status/2052767602389471498 · Twitter Post
• https://twitter.com/hetmehtaa/status/2055151398283837677 · Twitter Post