In the Linux kernel, the following vulnerability has been resolved:

devlink: Release nested relation on devlink free

devlink relation state is normally released from devl_unregister(), which
calls devlink_rel_put(). This misses devlink instances that get a nested
relation before registration and then fail probe before devl_register() is
reached.

That flow can happen for SFs. The child devlink gets linked to its
parent before registration, then a later probe error calls devlink_free()
directly. Since the instance was never registered, devl_unregister() is not
called and devlink->rel is leaked.

Release any pending relation from devlink_free() as well. The registered
path is unchanged because devl_unregister() already clears devlink->rel
before devlink_free() runs.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
c137743bce02b18c1537d4681aa515f7b80bf0a8 affected < a9137286884703113b1c9e6403bd6d7d97b14754
c137743bce02b18c1537d4681aa515f7b80bf0a8 affected < 927f96861f939c0b517d13ed27bf4fabbfc1cfb3
c137743bce02b18c1537d4681aa515f7b80bf0a8 affected < 11324d52b0c63f4f202b35793c6507a575e9a689
c137743bce02b18c1537d4681aa515f7b80bf0a8 affected < 3522b21fd7e1863d0734537737bd59f1b90d0190
Linux Linux affected
Version Status Constraints
6.7 affected —
0 unaffected < 6.7
6.12.94 unaffected ≤ 6.12.*
6.18.36 unaffected ≤ 6.18.*
7.0.13 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689 cve-icon
https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190 cve-icon
https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3 cve-icon
https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754 cve-icon
History

Thu, 25 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: devlink: Release nested relation on devlink free devlink relation state is normally released from devl_unregister(), which calls devlink_rel_put(). This misses devlink instances that get a nested relation before registration and then fail probe before devl_register() is reached. That flow can happen for SFs. The child devlink gets linked to its parent before registration, then a later probe error calls devlink_free() directly. Since the instance was never registered, devl_unregister() is not called and devlink->rel is leaked. Release any pending relation from devlink_free() as well. The registered path is unchanged because devl_unregister() already clears devlink->rel before devlink_free() runs.
Title devlink: Release nested relation on devlink free
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-06-25T08:39:49.891Z

Reserved: 2026-06-09T07:44:35.394Z

Link: CVE-2026-53261

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses

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