PT-2025-53130 · Linux+1 · Linux Kernel+1

Published 2025-12-24 · Updated 2026-03-14 · CVE-2022-50764

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:L/AC:H/Au:S/C:N/I:C/A:C

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

Description The Linux kernel contains a data race condition within the IPv6/sit module. Specifically, multiple CPUs can concurrently update the dev->stats.tx error variable, leading to potential inconsistencies. This occurs because sit tunnels utilize the NETIF F LLTX flag, meaning their ndo start xmit() function is not protected by a spinlock. The issue affects both the transmit and receive paths. The syzbot/KCSAN tool reported this condition.

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

Exploit

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

BDU:2026-05112

CVE-2022-50764

Affected Products

Debian

Linux Kernel

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50764.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50764 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50764 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50764 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50764 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-05112 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-50764 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2022-50764 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50764 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2022-50764 · Vendor Advisory
• https://twitter.com/CVEnew/status/2004294894253154348 · Twitter Post
• https://access.redhat.com/security/cve/cve-2022-50764 · Note
• https://git.kernel.org/stable/c/222cc04356984f3f98acfa756a69d4bed7c501ac · Note
• https://git.kernel.org/stable/c/4eed93bb3e57b8cc78d17166a14e40a73276015a · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note