PT-2025-18583 · Linux+1 · Linux Kernel+1

Published 2022-11-03 · Updated 2025-05-02 · CVE-2022-49866

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 MHI driver. The driver registers a network device without setting the needs free netdev flag and does not call free netdev() when unregistering the network device, resulting in a memory leak. This issue has been resolved by setting needs free netdev to true when registering the network device, allowing the netdev subsystem to automatically call free netdev() after unregistering the network device.

Recommendations 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

BDU:2026-05949

CVE-2022-49866

Affected Products

Astra Linux

Linux Kernel

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49866.json · Exploit
• https://git.kernel.org/stable/c/2845bc9070cef0c651987487d84d4813d64675dd · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49866 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-49866 · Security Note
• https://git.kernel.org/stable/c/668205b9c9f94d5ed6ab00cce9a46a654c2b5d16 · Patch
• https://git.kernel.org/stable/c/3cd3ffe952f78ec5dadf300cb58d4b38a0c0106d · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49866 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49866 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05949 · Security Note
• https://osv.dev/vulnerability/CVE-2022-49866 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49866 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49866 · Security Note
• https://twitter.com/CVEnew/status/1917950855296540878 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://access.redhat.com/security/cve/cve-2022-49866 · Note