CVE-2026-53261 (GCVE-0-2026-53261)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI
Title
devlink: Release nested relation on devlink free
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < a9137286884703113b1c9e6403bd6d7d97b14754 (git)
Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < 927f96861f939c0b517d13ed27bf4fabbfc1cfb3 (git)
Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < 11324d52b0c63f4f202b35793c6507a575e9a689 (git)
Affected: c137743bce02b18c1537d4681aa515f7b80bf0a8 , < 3522b21fd7e1863d0734537737bd59f1b90d0190 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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