tcp: fix TIME_WAIT socket reference leak on PSP policy failure

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68379
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:30 UTC
Updated2026-08-17 06:17:46 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: tcp: fix TIME_WAIT socket reference leak on PSP policy failure Release the TIME_WAIT socket reference and jump to discard_it upon PSP policy failure in both IPv4 and IPv6 receive paths. This prevents a memory leak of tcp_tw_bucket structures.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.006090000 probability, percentile 0.462720000 (date 2026-08-17)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 659a2899a57da59f433182eba571881884d6323e e666af5dcc905ba694745963174d232deb478c55 git Not specified
CNA Linux Linux affected 659a2899a57da59f433182eba571881884d6323e 374742a961becbbfc7fbfd1382d978a05e492741 git Not specified
CNA Linux Linux affected 659a2899a57da59f433182eba571881884d6323e 2c1931a81122c3cdc4c89448fe0442c69e21c0d5 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2c1931a81122c3cdc4c89448fe0442c69e21c0d5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/374742a961becbbfc7fbfd1382d978a05e492741 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e666af5dcc905ba694745963174d232deb478c55 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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