CVE-2026-64134

Katalog CVE

CVSS 7.8 · High EPSS 0,18%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

13 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,18% peluang dieksploitasi; lebih tinggi dari 6,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/41a766c647294842c9b17672449f8e011048cba9 patch
• https://git.kernel.org/stable/c/c9f6768515818d71bdfc20119a81f3332c53b9c6 patch
• https://git.kernel.org/stable/c/ce836587e594af39ff048d9b29dee0f5f10692c9 patch
• https://git.kernel.org/stable/c/e4d3386b74fba8e01280484b67ee481ece00201e patch
• https://git.kernel.org/stable/c/feff0251386aa6bb180a0a1cf7c1f91ba868113d patch