Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ac28634456867b23b95faccba7997a62ec430603 before 950d809f154dca04e5fbe5d3c8b9c5e44769cd57; affected ac28634456867b23b95faccba7997a62ec430603 before a698ac8ab2561cf575d2d9f34095032651dd952e; affected ac28634456867b23b95faccba7997a62ec430603 before 19924bdd8a45ebc72a7b84c57fd63057d1dc75ac; affected ac28634456867b23b95faccba7997a62ec430603 before 1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be; affected ac28634456867b23b95faccba7997a62ec430603 before 3823c27099cfe2482299065814adbaa771be9644; affected ac28634456867b23b95faccba7997a62ec430603 before 15d464265120ab9818bd673af301deee09bedab2; affected ac28634456867b23b95faccba7997a62ec430603 before 3fb0f5c0f64162a8c3f25616a4f1e340b921737f; affected ac28634456867b23b95faccba7997a62ec430603 before e196115ec330a18de415bdb9f5071aa9f08e53ce |
| Linux / Linux | affected 4.7; unaffected 0 before 4.7; unaffected 5.10.259 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.142 through 6.6.*; unaffected 6.12.92 through 6.12.*; unaffected 6.18.34 through 6.18.*; unaffected 7.0.11 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/950d809f154dca04e5fbe5d3c8b9c5e44769cd57
- https://git.kernel.org/stable/c/a698ac8ab2561cf575d2d9f34095032651dd952e
- https://git.kernel.org/stable/c/19924bdd8a45ebc72a7b84c57fd63057d1dc75ac
- https://git.kernel.org/stable/c/1e5e20031c5eee8d2e490a90ff4d6a2feecfc3be
- https://git.kernel.org/stable/c/3823c27099cfe2482299065814adbaa771be9644
- https://git.kernel.org/stable/c/15d464265120ab9818bd673af301deee09bedab2
- https://git.kernel.org/stable/c/3fb0f5c0f64162a8c3f25616a4f1e340b921737f
- https://git.kernel.org/stable/c/e196115ec330a18de415bdb9f5071aa9f08e53ce
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.