CVE-2025-38074

Katalog CVE

CVSS 5.5 · Medium EPSS 0,20%

Kerentanan pada linux kernel, debian linux. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: protect vq->log_used with vq->mutex The vhost-scsi completion path may access vq->log_base when vq->log_used is already set to false. vhost-thread QEMU-thread vhost_scsi_complete_cmd_work() -> vhost_add_used() -> vhost_add_used_n() if (unlikely(vq->log_used)) QEMU disables vq->log_used via VHOST_SET_VRING_ADDR. mutex_lock(&vq->mutex); vq->log_used = false now! mutex_unlock(&vq->mutex); QEMU gfree(vq->log_base) log_used() -> log_write(vq->log_base) Assuming the VMM is QEMU. The vq->log_base is from QEMU userpace and can be reclaimed via gfree(). As a result, this causes invalid memory writes to QEMU userspace. The control queue path has the same issue.

Rincian

Terbit di NVD

18 Juni 2025

Terakhir diubah

30 Juli 2026

Status NVD

Modified

CVSS 3.1

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

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 8,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/59614c5acf6688f7af3c245d359082c0e9e53117 patch
• https://git.kernel.org/stable/c/80cf68489681c165ded460930e391b1eb37b5f6f patch
• https://git.kernel.org/stable/c/8312a1ccff1566f375191a89b9ba71b6eb48a8cd patch
• https://git.kernel.org/stable/c/bd8c9404e44adb9f6219c09b3409a61ab7ce3427 patch
• https://git.kernel.org/stable/c/c0039e3afda29be469d29b3013d7f9bdee136834 patch
• https://git.kernel.org/stable/c/ca85c2d0db5f8309832be45858b960d933c2131c patch
• https://git.kernel.org/stable/c/f591cf9fce724e5075cc67488c43c6e39e8cbe27 patch
• https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html advisory pihak ketiga