cbcvebase.
CVE-2025-38074
published 2025-06-18

CVE-2025-38074: 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…

medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
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.

Affected

35 ranges· showing 25
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
debianlinux-6.1< linux 6.1.147-1 (bookworm)linux 6.1.147-1 (bookworm)
linuxlinux
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 80cf68489681c165ded460930e391b1eb37b5f6f80cf68489681c165ded460930e391b1eb37b5f6f
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 8312a1ccff1566f375191a89b9ba71b6eb48a8cd8312a1ccff1566f375191a89b9ba71b6eb48a8cd
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < 59614c5acf6688f7af3c245d359082c0e9e5311759614c5acf6688f7af3c245d359082c0e9e53117
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < ca85c2d0db5f8309832be45858b960d933c2131cca85c2d0db5f8309832be45858b960d933c2131c
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < bd8c9404e44adb9f6219c09b3409a61ab7ce3427bd8c9404e44adb9f6219c09b3409a61ab7ce3427
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < c0039e3afda29be469d29b3013d7f9bdee136834c0039e3afda29be469d29b3013d7f9bdee136834
linuxlinux>= 057cbf49a1f08297877e46c82f707b1bfea806a8 < f591cf9fce724e5075cc67488c43c6e39e8cbe27f591cf9fce724e5075cc67488c43c6e39e8cbe27
linuxlinux_kernel< 5.10.2405.10.240
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.244-15.10.244-1
linuxlinux_kernel>= 0 < 6.1.147-16.1.147-1
linuxlinux_kernel>= 0 < 6.12.32-16.12.32-1
linuxlinux_kernel>= 0 < 6.12.32-16.12.32-1
linuxlinux_kernel>= 0 < 5.15.0-156.1665.15.0-156.166
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 5.11 < 5.15.1895.15.189
linuxlinux_kernel>= 5.16 < 6.1.1466.1.146
linuxlinux_kernel>= 6.13 < 6.14.96.14.9
linuxlinux_kernel>= 6.2 < 6.6.936.6.93
linuxlinux_kernel>= 6.7 < 6.12.316.12.31
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM