Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — netfilter: bridge: replace physindev with physinif in nf_bridge_info
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0022 13.1 —
AFFECTED
Product Versions Fixed
Linux c4e70a87d975d1f561a00abfe2d3cefa2a486c95 – —
Linux 4.2 – 6.1.75
TIMELINE
May 17 Reserved by Linux
May 17 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-35839 (Linux). CVSS 7.8 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: bridge: replace physindev with physinif in nf_bridge_info
An skb can be added to a neigh->arp_queue while waiting for an arp
reply. Where original skb's skb->dev can be different to neigh's
neigh->dev. For instance in case of bridging dnated skb from one veth to
another, the skb would be added to a neigh->arp_queue of the bridge.
As skb->dev can be reset back to nf_bridge->physindev and used, and as
there is no explicit mechanism that prevents this physindev from been
freed under us (for instance neigh_flush_dev doesn't cleanup skbs from
different device's neigh queue) we can crash on e.g. this stack:
arp_process
neigh_update
skb = __skb_dequeue(&neigh->arp_queue)
neigh_resolve_output(..., skb)
...
br_nf_dev_xmit
br_nf_pre_routing_finish_bridge_slow
skb->dev = nf_bridge->physindev
br_handle_frame_finish
Let's use plain ifindex instead of net_device link. To peek into the
original net_device we will use dev_get_by_index_rcu(). Thus either we
get device and are safe to use it or we don't get it and drop skb.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| May 17, 2024 | Reserved | Reserved by Linux |
| May 17, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-35839 (Linux). CVSS 7.8 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | c4e70a87d975d1f561a00abfe2d3cefa2a486c95 | — |
| Linux | Linux | — | 4.2 | 6.1.75 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-35839 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.