CVE-2026-80987

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-80987

Key Details

CVE	CVE-2026-80987
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CVSS Prose	attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

NTB: ntb_transport: Reject oversized TX buffers

ntb_process_tx() handles an oversized buffer by calling tx_handler()

with a NULL data pointer and returning success. ntb_netdev therefore

neither frees the skb in its completion callback nor takes its enqueue

error path, leaking it.

Reject oversized buffers in ntb_transport_tx_enqueue() before acquiring

a queue entry and return -EMSGSIZE. The caller retains ownership of the

buffer, and the preceding netdev patch frees the skb when enqueue

returns this permanent error. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-80987
CVE	https://www.cve.org/CVERecord?id=CVE-2026-80987

Source

Reference

NVD

CVE