net: use dst_dev_rcu() in sk_setup_caps()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-40170
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-12 11:15:47 UTC
Updated2026-10-21 13:18:19 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: use dst_dev_rcu() in sk_setup_caps() Use RCU to protect accesses to dst->dev from sk_setup_caps() and sk_dst_gso_max_size(). Also use dst_dev_rcu() in ip6_dst_mtu_maybe_forward(), and ip_dst_mtu_maybe_forward(). ip4_dst_hoplimit() can use dst_dev_net_rcu().

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001580000 probability, percentile 0.045070000 (date 2026-10-19)

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

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 9f22b5f7f1a32f8bbcc82bf34e34ea63523fcd02 git Not specified
CNA Linux Linux affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 5d1be493d1110c9e720b4c51a6e587bb2fb4ac12 git Not specified
CNA Linux Linux affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 a805729c0091073d8f0415cfa96c7acd1bc17a48 git Not specified
CNA Linux Linux affected 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 99a2ace61b211b0be861b07fbaa062fca4b58879 git Not specified
CNA Linux Linux affected 4.13 Not specified
CNA Linux Linux unaffected 4.13 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.64 6.12.* semver Not specified
CNA Linux Linux unaffected 6.17.3 6.17.* semver Not specified
CNA Linux Linux unaffected 6.18 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/99a2ace61b211b0be861b07fbaa062fca4b58879 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9f22b5f7f1a32f8bbcc82bf34e34ea63523fcd02 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a805729c0091073d8f0415cfa96c7acd1bc17a48 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5d1be493d1110c9e720b4c51a6e587bb2fb4ac12 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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