CVE-2026-31679
openvswitch: validate MPLS set/set_masked payload length
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: openvswitch: validate MPLS set/set_masked payload length validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls). Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes. Reject invalid MPLS action payload lengths early.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 4cae986225f8b8679ad86b924918e7d75a96aa61 fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 8ed7b9930cbc3bc71f868fa79a68700ac88d586a fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < c1f97152df8dfb17e855ddf0fc409b7bd13e9700 fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 98de18d327ef8cbbb704980e359e4872d8c28997 fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < bd50c7484c3bb34097571c1334174fb8b7408036 fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 2ca33b88a79ca42f017ae0f7011280325655438e fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 546b68ac893595877ffbd7751e5c55fd1c43ede6
Linux / Linux
5.5
References
git.kernel.org: https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f git.kernel.org: https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61 git.kernel.org: https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a git.kernel.org: https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700 git.kernel.org: https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997 git.kernel.org: https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036 git.kernel.org: https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e git.kernel.org: https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6