PT-2025-53025 · Linux+2 · Linux Kernel+2

Published 2025-12-24 · Updated 2026-05-26 · CVE-2022-50721

Positive Technologies (AI Summary)

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

Description A flaw exists in the Linux kernel’s dmaengine subsystem, specifically within the qcom-adm module, related to an incorrect calling convention for the prep slave sg function. The prep slave sg function should return NULL on error and provide an error log. However, qcom-adm returns an error pointer, which can lead to a kernel panic, as observed with the nandc driver. The root cause is qcom-adm not adhering to the expected calling convention. This issue does not involve any known exploitation or affected devices. The vulnerable function is prep slave sg.

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

Exploit

Related Identifiers

CVE-2022-50721

RHSA-2023:6583

Affected Products

Linux Kernel

Red Hat

Qcom-Adm

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50721.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50721 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50721 · Security Note
• https://osv.dev/vulnerability/CVE-2022-50721 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50721 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2022-50721 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50721 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50721 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50721 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/stable/c/b9d2140c3badf4107973ad77c5a0ec3075705c85 · Note
• https://git.kernel.org/stable/c/5653bd0200944e5803fa8e32dc36aa49931312f9 · Note
• https://lore.kernel.org/linux-cve-announce/2025122417-CVE-2022-50721-9683@gregkh/T · Note
• https://git.kernel.org/stable/c/9a041174c58a226e713f6cebd41eccec7a5cfa72 · Note
• https://twitter.com/CVEnew/status/2004457817173008680 · Twitter Post