PT-2025-18511 · Linux+2 · Linux Kernel+2

Published 2025-05-01 · Updated 2025-07-10 · CVE-2022-49794

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 A memory leak issue has been identified in the Linux kernel, specifically in the at91 adc allocate trigger() function. This issue arises when iio trigger register() returns an error, and iio trigger free() is not called to release the reference held in iio trigger alloc(). As a result, memory is not freed when the reference count reaches 0.

Recommendations To resolve this issue, ensure that iio trigger free() is called when iio trigger register() returns an error, allowing iio trig release() to free memory when the reference count hits 0. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2022-49794

SUSE-SU-2025:01918-1

SUSE-SU-2025:01966-1

SUSE-SU-2025:01982-1

SUSE-SU-2025:01995-1

SUSE-SU-2025:02173-1

SUSE-SU-2025:02262-1

SUSE-SU-2025:2173-1

SUSE-SU-2025_01982-1

SUSE-SU-2025_02173-1

SUSE-SU-2025_02262-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 549

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49794.json · Exploit
• https://git.kernel.org/stable/c/1bf8c0aff8fb5c4edf3ba6728e6bedbd610d7f4b · Patch
• https://git.kernel.org/stable/c/65f20301607d07ee279b0804d11a05a62a6c1a1c · Patch
• https://git.kernel.org/stable/c/c3ce73f60599a483dca7becd4112508833a40ef9 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49794 · Vendor Advisory
• https://git.kernel.org/stable/c/7b75515728b628a9a7540f201efdeb8ca7299385 · Patch
• https://git.kernel.org/stable/c/c27a3b6ba23350708cf5ab9962337447b51eb76d · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:01982-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49794 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49794 · Vendor Advisory
• https://git.kernel.org/stable/c/a0d98ae5a62a7bbad8fcf9fa22e0a1274197bbc4 · Patch
• https://git.kernel.org/stable/c/85d2a8b287a89853c0dcfc5a97b5e9d36376fe37 · Patch
• https://git.kernel.org/stable/c/2b29a7f2d52fb5281b30cf61c947d88bab18a29b · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49794 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:02173-1 · Vendor Advisory