CVE-2026-64134

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-64134

Key Details

CVE	CVE-2026-64134
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
Classified as	CWE-476 (NULL Pointer Dereference)

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:

ALSA: pcm: Don't setup bogus iov_iter for silencing

At transition to the iov_iter for PCM data transfer, we blindly

applied the iov_iter setup also for silencing (i.e. data = NULL), and

it leads to a calculation of bogus iov_iter. Fortunately this didn't

cause troubles on most of architectures but it goes wrong on RISC-V

now, causing a NULL dereference.

Handle the NULL data case to treat the silencing in interleaved_copy()

for addressing the bug above. noninterleaved_copy() has already the

NULL data handling, so it doesn't need changes. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-64134
CVE	https://www.cve.org/CVERecord?id=CVE-2026-64134

Source

Reference

NVD

CVE