PT-2025-18537 · Linux+1 · Linux Kernel+1

Published 2025-05-01 · Updated 2025-11-10 · CVE-2022-49820

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 vulnerability in the Linux kernel has been resolved, related to the mctp i2c module. The issue arises when a flow is released before sending the first packet it contains, causing a mismatch between the release count and the i2c lock operation. This can lead to a release count overflow. To fix this, the kernel now only releases a flow if it has been encountered previously, and an INVALID flow state has been added to indicate when a release has been performed.

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

Exploit

Related Identifiers

CVE-2022-49820

Affected Products

Astra Linux

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49820.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2022-49820 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49820 · Vendor Advisory
• https://git.kernel.org/stable/c/9cbd48d5fa14e4c65f8580de16686077f7cea02b · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-49820 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49820 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49820 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49820 · Vendor Advisory
• https://git.kernel.org/stable/c/a5915a9a3ab4067ef8996a57738d156eabeb3a12 · Patch
• https://cve.org/CVERecord?id=CVE-2022-49820 · Security Note
• https://twitter.com/CVEnew/status/1918014612475093056 · Twitter Post
• https://t.me/cveNotify/142335 · Telegram Post
• https://git.kernel.org/linus/9cbd48d5fa14e4c65f8580de16686077f7cea02b · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note