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Vulnerability Change Records for CVE-2026-52912

Change History

New CVE Received from kernel.org 6/24/2026 4:16:20 AM

Action Type Old Value New Value
Added 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.
Added Reference

                  
                
              
https://git.kernel.org/stable/c/15d464265120ab9818bd673af301deee09bedab2
Added Reference

                  
                
              
https://git.kernel.org/stable/c/19924bdd8a45ebc72a7b84c57fd63057d1dc75ac
Added Reference

                  
                
              
https://git.kernel.org/stable/c/1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be
Added Reference

                  
                
              
https://git.kernel.org/stable/c/3823c27099cfe2482299065814adbaa771be9644
Added Reference

                  
                
              
https://git.kernel.org/stable/c/3fb0f5c0f64162a8c3f25616a4f1e340b921737f
Added Reference

                  
                
              
https://git.kernel.org/stable/c/950d809f154dca04e5fbe5d3c8b9c5e44769cd57
Added Reference

                  
                
              
https://git.kernel.org/stable/c/a698ac8ab2561cf575d2d9f34095032651dd952e
Added Reference

                  
                
              
https://git.kernel.org/stable/c/e196115ec330a18de415bdb9f5071aa9f08e53ce
Added Affected

                  
                
              
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