PT-2026-52356 · Linux · Linux

Publicado

2026-06-25

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Atualizado

2026-06-25

·

CVE-2026-53261

Nenhuma

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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.
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Identificadores relacionados

CVE-2026-53261

Produtos afetados

Linux