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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-64134 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/41a766c647294842c9b17672449f8e011048cba9 kernel.org
https://git.kernel.org/stable/c/c9f6768515818d71bdfc20119a81f3332c53b9c6 kernel.org
https://git.kernel.org/stable/c/ce836587e594af39ff048d9b29dee0f5f10692c9 kernel.org
https://git.kernel.org/stable/c/e4d3386b74fba8e01280484b67ee481ece00201e kernel.org
https://git.kernel.org/stable/c/feff0251386aa6bb180a0a1cf7c1f91ba868113d kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-64134
NVD Published Date:
07/19/2026
NVD Last Modified:
07/20/2026
Source:
kernel.org