CVE-2026-53261devlink: Release nested relation on devlink free
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Jun 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c137743bce02b18c1537d4681aa515f7b80bf0a8 before a9137286884703113b1c9e6403bd6d7d97b14754; from c137743bce02b18c1537d4681aa515f7b80bf0a8 before 927f96861f939c0b517d13ed27bf4fabbfc1cfb3; from c137743bce02b18c1537d4681aa515f7b80bf0a8 before 11324d52b0c63f4f202b35793c6507a575e9a689; from c137743bce02b18c1537d4681aa515f7b80bf0a8 before 3522b21fd7e1863d0734537737bd59f1b90d0190 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 7.0.13; 7.1; 7.1; 7.1; 7.1; 7.1; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/a9137286884703113b1c9e6403bd6d7d97b14754patch
- https://git.kernel.org/stable/c/927f96861f939c0b517d13ed27bf4fabbfc1cfb3patch
- https://git.kernel.org/stable/c/11324d52b0c63f4f202b35793c6507a575e9a689patch
- https://git.kernel.org/stable/c/3522b21fd7e1863d0734537737bd59f1b90d0190patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.