Answer in brief
CVE-2026-45929 records a High severity (CVSS 7.8) vulnerability in ovpn: fix possible use-after-free in ovpn_net_xmit. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=08857b5ec5d91d83e69e40a36554a8c7557b7301 <3e4fbcb4e078915367ba5576cd70d76dbc970f95 || >=08857b5ec5d91d83e69e40a36554a8c7557b7301 <442915c96a9bff1c7080e2aedabb1c03faa28d81 || >=08857b5ec5d91d83e69e40a36554a8c7557b7301 <a5ec7baa44ea3a1d6aa0ca31c0ad82edf9affe41 | 3e4fbcb4e078915367ba5576cd70d76dbc970f95, 442915c96a9bff1c7080e2aedabb1c03faa28d81, a5ec7baa44ea3a1d6aa0ca31c0ad82edf9affe41 |
| Linux/Linuxgeneric | 6.16 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: ovpn: fix possible use-after-free in ovpn_net_xmit When building the skb_list in ovpn_net_xmit, skb_share_check will free the original skb if it is shared. The current implementation continues to use the stale skb pointer for subsequent operations: - peer lookup, - skb_dst_drop (even though all segments produced by skb_gso_segment will have a dst attached), - ovpn_peer_stats_increment_tx. Fix this by moving the peer lookup and skb_dst_drop before segmentation so that the original skb is still valid when used. Return early if all segments fail skb_share_check and the list ends up empty. Also switch ovpn_peer_stats_increment_tx to use skb_list.next; the next patch fixes the stats logic.
Quoted source text, attributed separately from HOL analysis.