PT-2026-61451 · Linux+1 · Linux Kernel+1

CVE-2026-64134

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Published

2026-07-19

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Updated

2026-09-07

CVSS v3.1

7.8

High

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the ALSA PCM data transfer process where the iov iter setup is incorrectly applied during silencing when data is NULL. This leads to the calculation of a bogus iov iter, which results in a NULL dereference on RISC-V architectures. The problem occurs within the interleaved copy() function.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

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Weakness Enumeration

Related Identifiers

CVE-2026-64134
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1
USN-8729-1

Affected Products

Linux Kernel
Ubuntu