openvswitch: validate MPLS set/set_masked payload length
Summary
| CVE | CVE-2026-31679 |
|---|
| State | PUBLISHED |
|---|
| Assigner | Linux |
|---|
| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2026-04-25 09:16:01 UTC |
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| Updated | 2026-04-25 09:16:01 UTC |
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| Description | 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 Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 4cae986225f8b8679ad86b924918e7d75a96aa61 git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 8ed7b9930cbc3bc71f868fa79a68700ac88d586a git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 c1f97152df8dfb17e855ddf0fc409b7bd13e9700 git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 98de18d327ef8cbbb704980e359e4872d8c28997 git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 bd50c7484c3bb34097571c1334174fb8b7408036 git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 2ca33b88a79ca42f017ae0f7011280325655438e git |
Not specified |
| CNA |
Linux |
Linux |
affected fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 546b68ac893595877ffbd7751e5c55fd1c43ede6 git |
Not specified |
| CNA |
Linux |
Linux |
affected 5.5 |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.5 semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.10.253 5.10.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.15.203 5.15.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.1.168 6.1.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.6.131 6.6.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.12.80 6.12.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.18.21 6.18.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.19.11 6.19.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.0 * original_commit_for_fix |
Not specified |
References
| Reference | Source | Link | Tags |
|---|
| git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.
