CVE-2026-74626 Affecting kernel-uek-core package, versions <0:5.15.0-325.220.5.el8uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.5% (42nd percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEKCORE-20648514
  • published8 Oct 2026
  • disclosed22 Aug 2026

Introduced: 22 Aug 2026

CVE-2026-74626  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek-core to version 0:5.15.0-325.220.5.el8uek or higher.
This issue was patched in ELSA-2026-500377.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-core package and not the kernel-uek-core package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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

NTB: ntb_netdev: Preserve RX queue depth on allocation failure

ntb_netdev_rx_handler() hands the received skb to the network stack before allocating its replacement. If the allocation fails, nothing is reposted. Every failure therefore takes one buffer out of the RX queue while the interface remains up, and enough failures eventually stall reception.

A retry path could refill the queue later, but ntb_netdev has none. Allocate the replacement first instead. If that fails, drop the packet and repost the same skb. This keeps the queue full and lets packet delivery resume as soon as memory is available again.

CVSS Base Scores

version 3.1