CVE-2026-74334

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-74334

Key Details

CVE	CVE-2026-74334
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; 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:

RDMA/nldev: Fix locking when accessing mr->pd

Sashiko points out that, due to rereg_mr, the PD is actually variable and

all the touches in nldev are racy.

Use mr->device instead of mr->pd->device.

Getting the PD restrack ID is more tricky. To avoid disturbing all the

happy paths, add an rdma_restrack_sync() operation which is sort of like

flush_workqueue() or synchronize_irq(): after it returns, all the old

nldev touches to the mr are gone and everything sees the new PD. This

makes it safe to reach into the PD pointer. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-74334
CVE	https://www.cve.org/CVERecord?id=CVE-2026-74334

Source

Reference

NVD

CVE