netdev: fix double-free in netdev_nl_bind_rx_doit()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-53233
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 09:16:41 UTC
Updated2026-07-07 23:46:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: netdev: fix double-free in netdev_nl_bind_rx_doit() Sashiko flags that genlmsg_reply() always consumes the skb. The error path calls nlmsg_free(rsp) so we can't jump directly to it. Let's not unbind, just propagate the error to the user. This is the typical way of handling genlmsg_reply() failures. They shouldn't happen unless user does something silly like calling the kernel with an already-full rcvbuf.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.001750000 probability, percentile 0.072170000 (date 2026-07-04)

Problem Types: CWE-415

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599 git Not specified
CNA Linux Linux affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea c299321bc6232770ce378d6fa6bc46004d2d7fdb git Not specified
CNA Linux Linux affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea 9b019376cbee10c4f9184d1745fa37d156e36f30 git Not specified
CNA Linux Linux affected 170aafe35cb98e0f3fbacb446ea86389fbce22ea c849de7d8757a7af801fc4a4058f71d481d367f2 git Not specified
CNA Linux Linux affected 6.12 Not specified
CNA Linux Linux unaffected 6.12 semver Not specified
CNA Linux Linux unaffected 6.12.94 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c299321bc6232770ce378d6fa6bc46004d2d7fdb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c849de7d8757a7af801fc4a4058f71d481d367f2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9b019376cbee10c4f9184d1745fa37d156e36f30 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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