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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-52912 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: hold bridge skb->dev while queued br_pass_frame_up() rewrites skb->dev from the ingress port to the bridge master before queueing bridge LOCAL_IN packets. NFQUEUE only holds references on state.in/out and bridge physdevs, so a queued bridge packet can retain a freed bridge master in skb->dev until reinjection. When the verdict is reinjected later, br_netif_receive_skb() re-enters the receive path with skb->dev still pointing at the freed bridge master, triggering a use-after-free. Store skb->dev in the queue entry, hold a reference on it for the queue lifetime, and use the saved device when dropping queued packets during NETDEV_DOWN handling.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/15d464265120ab9818bd673af301deee09bedab2 kernel.org
https://git.kernel.org/stable/c/19924bdd8a45ebc72a7b84c57fd63057d1dc75ac kernel.org
https://git.kernel.org/stable/c/1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be kernel.org
https://git.kernel.org/stable/c/3823c27099cfe2482299065814adbaa771be9644 kernel.org
https://git.kernel.org/stable/c/3fb0f5c0f64162a8c3f25616a4f1e340b921737f kernel.org
https://git.kernel.org/stable/c/950d809f154dca04e5fbe5d3c8b9c5e44769cd57 kernel.org
https://git.kernel.org/stable/c/a698ac8ab2561cf575d2d9f34095032651dd952e kernel.org
https://git.kernel.org/stable/c/e196115ec330a18de415bdb9f5071aa9f08e53ce kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-52912
NVD Published Date:
06/24/2026
NVD Last Modified:
06/24/2026
Source:
kernel.org