ipvs: ensure inner headers in ICMP errors are in headroom

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72319
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:04 UTC
Updated2026-08-17 06:18:35 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ipvs: ensure inner headers in ICMP errors are in headroom Sashiko points out that after stripping the outer headers with pskb_pull() we should ensure the inner IP headers in ICMP errors from tunnels are present in the skb headroom for functions like ipv4_update_pmtu(), icmp_send() and IP_VS_DBG(). Also, add more checks for the length of the inner headers.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.007550000 probability, percentile 0.520770000 (date 2026-08-17)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 19657b3a17b774ae4e2f2635b5ae8638c9344a40 git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e dac813101914c21219ac221a60a31a11bc90e7ec git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e dd22f74a09e25ca298ced0a3763ef353242cb78d git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 9bc9b95aee2b2e3f1301a16a67ee504960402875 git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e a735f9964a3d9ed97daf9b08507f8b5bcafe6326 git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 8f48cfe657409fb5c7ba0521b14da6d47546d9cf git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 92185d6f7819bc558939ae83de7b1abe90e3b5c2 git Not specified
CNA Linux Linux affected f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e 3f7a535ff0fa627a0132803e4c2f903ceffcbc1c git Not specified
CNA Linux Linux affected 3.7 Not specified
CNA Linux Linux unaffected 3.7 semver Not specified
CNA Linux Linux unaffected 5.10.261 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.212 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/a735f9964a3d9ed97daf9b08507f8b5bcafe6326 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9bc9b95aee2b2e3f1301a16a67ee504960402875 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd22f74a09e25ca298ced0a3763ef353242cb78d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/92185d6f7819bc558939ae83de7b1abe90e3b5c2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/19657b3a17b774ae4e2f2635b5ae8638c9344a40 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dac813101914c21219ac221a60a31a11bc90e7ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3f7a535ff0fa627a0132803e4c2f903ceffcbc1c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/8f48cfe657409fb5c7ba0521b14da6d47546d9cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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