Moderate: Red Hat Security Advisory: qemu-kvm security, bug fix, and enhancement update

An update for qemu-kvm is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

qemu-kvm: Heap buffer overflow in virtio-blk SCSI request handling

A flaw was found in QEMU's virtio-blk device. The issue arises because the device does not properly validate the size of input descriptors before writing data. A malicious guest with high privileges could exploit this vulnerability by submitting a malformed virtio-blk SCSI request, leading to an...

qemu-kvm security, bug fix, and enhancement update

10.1.0-16.el102.5 - kvm-file-posix-populate-pwritezeroesalignment.patch RHEL-207389 - kvm-block-use-pwritezeroesalignment-when-writing-first.patch RHEL-207389 - kvm-iotests-add-Linux-loop-device-image-creation-test.patch RHEL-207389 - Resolves: RHEL-207389 qemu-img create/convert fails on target...

PT-2026-80901

The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtio isr drivers/virtio/virtio common.c, the device-written vq-used-ringidx.id is used directly as an index into vq-recv cbs and vq-desc, which are both allocated with...

The vulnerability of the vmw_vsock/virtio_transport_common.c component in the Linux operating system allows a hacker to gain access to confidential data.

The vulnerability of the vmwvsock/virtiotransportcommon.c component in the Linux operating system is related to the disclosure of information. Exploiting this vulnerability can allow an attacker to gain access to confidential data...

The vulnerability of the `virtio_snd_pcm_in_cb` function in the `hw/audio/virtio-snd.c` component of the QEMU hardware emulation software allows a hacker to trigger a service failure.

The vulnerability of the virtiosndpcmincb function in the hw/audio/virtio-snd.c component of the QEMU hardware emulation software is related to the issue of writing operations outside of the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to cause a system failure...

The vulnerability in the hw/audio/virtio-snd.c component of the QEMU hardware emulation software allows a hacker to trigger a system failure.

The vulnerability of the hw/audio/virtio-snd.c component of the QEMU hardware emulation software is related to integer overflow. Exploiting this vulnerability can allow an attacker to cause a system failure...

SUSE CVE-2026-74613

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: avoid refilling the RX queue after teardown Commit b917507e5ad9 "vsock/virtio: stop workers during the .remove" made the RX worker jump to its common exit when rxrun is clear. That exit still refills the RX queue wh...

SUSE CVE-2026-74614

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b "vsock/virtio: add support for device suspend/resume" made the run flags transition from false to true when restore installs replacement virtqueues. The RX, TX...

AZL-97242 CVE-2026-74684 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74684

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74614

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b "vsock/virtio: add support for device suspend/resume" made the run flags transition from false to true when restore installs replacement virtqueues. The RX, TX...

AZL-97226 CVE-2026-74614 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b "vsock/virtio: add support for device suspend/resume" made the run flags transition from false to true when restore installs replacement virtqueues. The RX, TX...

CVE-2026-74613

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: avoid refilling the RX queue after teardown Commit b917507e5ad9 "vsock/virtio: stop workers during the .remove" made the RX worker jump to its common exit when rxrun is clear. That exit still refills the RX queue wh...

AZL-97253 CVE-2026-74613 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: avoid refilling the RX queue after teardown Commit b917507e5ad9 "vsock/virtio: stop workers during the .remove" made the RX worker jump to its common exit when rxrun is clear. That exit still refills the RX queue wh...

UBUNTU-CVE-2026-74613

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: avoid refilling the RX queue after teardown Commit b917507e5ad9 "vsock/virtio: stop workers during the .remove" made the RX worker jump to its common exit when rxrun is clear. That exit still refills the RX queue wh...

CVE-2026-74613

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: avoid refilling the RX queue after teardown Commit b917507e5ad9 "vsock/virtio: stop workers during the .remove" made the RX worker jump to its common exit when rxrun is clear. That exit still refills the RX queue wh...

CVE-2026-74684

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

UBUNTU-CVE-2026-74684

In the Linux kernel, the following vulnerability has been resolved: net: tap: set skb-dev before parsing virtio net header in tapgetuserxdp The commit 4f61f133f354 "net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null" fixed a crash in tapgetuser by assigning skb-dev...

CVE-2026-74614

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: read virtqueues under worker locks Commit bd50c5dc182b "vsock/virtio: add support for device suspend/resume" made the run flags transition from false to true when restore installs replacement virtqueues. The RX, TX...