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.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U H H H 7.8 .0013 3.2 —
AFFECTED Product Versions Fixed Linux 2d1faf7a0ca3c0b327cf064c80e4e775532c9319 – — Linux 6.2 – 6.6.140
TIMELINE May 13 Reserved by Linux May 27 Published (CNA: Linux) Aug 17 RESCORED — CVE-2026-45998 (Linux). CVSS 7 → 7.8 (NVD).
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix potential UAF after skb_unshare() failure If skb_unshare() fails to unshare a packet due to allocation failure in rxrpc_input_packet(), the skb pointer in the parent (rxrpc_io_thread()) will be NULL'd out. This will likely cause the call to trace_rxrpc_rx_done() to oops. Fix this by moving the unsharing down to where rxrpc_input_call_event() calls rxrpc_input_call_packet(). There are a number of places prior to that where we ignore DATA packets for a variety of reasons (such as the call already being complete) for which an unshare is then avoided. And with that, rxrpc_input_packet() doesn't need to take a pointer to the pointer to the packet, so change that to just a pointer.
| Date | Event | Detail |
|---|---|---|
| May 13, 2026 | Reserved | Reserved by Linux |
| May 27, 2026 | Published | Published (CNA: Linux) |
| August 17, 2026 | RESCORED | RESCORED — CVE-2026-45998 (Linux). CVSS 7 → 7.8 (NVD). |
Authoritative record: CVE-2026-45998 at cve.org
Vendors: linux
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-45998 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.