CVE-2022-49727: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.

Affected products

• Linux Linux Kernel: before 4.9.320 (fixed in 4.9.320); from 4.10, before 4.14.285 (fixed in 4.14.285); from 4.15, before 4.19.249 (fixed in 4.19.249); from 4.20, before 5.4.200 (fixed in 5.4.200); from 5.5, before 5.10.124 (fixed in 5.10.124); from 5.11, before 5.15.49 (fixed in 5.15.49); …

Published 2025-02-26. Last modified 2026-06-17.