CVE-2026-64134
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Don't setup bogus iov_iter for silencing At transition to t
CVSS
7.8
High
EPSS
0.2%
p6
KEV
—
Exploit Today
2
0-100
Published: Jul 19, 2026 · Last modified: Jul 20, 2026
Not enough EPSS history yet.
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.
- git.kernel.orghttps://git.kernel.org/stable/c/41a766c647294842c9b17672449f8e011048cba9
- git.kernel.orghttps://git.kernel.org/stable/c/c9f6768515818d71bdfc20119a81f3332c53b9c6
- git.kernel.orghttps://git.kernel.org/stable/c/ce836587e594af39ff048d9b29dee0f5f10692c9
- git.kernel.orghttps://git.kernel.org/stable/c/e4d3386b74fba8e01280484b67ee481ece00201e
- git.kernel.orghttps://git.kernel.org/stable/c/feff0251386aa6bb180a0a1cf7c1f91ba868113d
No related CVEs by CWE or product.