Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: vhost-scsi: Protect vq-logused with vq-mutex The vhost-scsi completion path may access vq-logbase when vq-logused is already set to false. vhost-thread QEMU-thread vhostscsicompletecmdwork - vhostaddused - vhostaddusedn If...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: vhost/scsi: A null pointer dereference bug can occur when the guest sends an SCSI AN request. In the function vhostscsiCTLHANDLEVQ, the variable vc.target is assigned the value of &vreq.tmf.lun1 within a switch-case block. This...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098691)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098691 advisory. In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: protect vq-logused with vq-mutex The vhost-scsi completion path may access vq-logbas...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098851)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098851 advisory. In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Fix handling of multiple calls to vhostscsisetendpoint If vhostscsisetendpoint is...

CVE-2026-74702

A flaw was found in the vhost-scsi component of the Linux kernel. This vulnerability allows a local attacker to cause a denial of service DoS by changing virtio feature bits after the vhost-scsi endpoint has been activated. Specifically, enabling the T10-PI feature after setup can lead to an...

CVE-2026-74703

A flaw was found in the Linux kernel's vhost-scsi component. When T10 Protection Information PI is negotiated, a remote attacker could send a specially crafted request with malformed scatterlist counts. This could lead to an invalid memory allocation operation, triggering a kernel panic and...

CVE-2026-74703

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iterator before mapping the request scatterlists. A malformed request can claim protection bytes that cove...

CVE-2026-74702

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: reject feature changes after endpoint vhostscsisetupvqcmds runs from VHOSTSCSISETENDPOINT and allocates each command's protection scatterlist array protsgl according to the acknowledged VIRTIOSCSIFT10PI bit. The comma...

CVE-2026-74703

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iterator before mapping the request scatterlists. A malformed request can claim protection bytes that cove...

CVE-2026-74702

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: reject feature changes after endpoint vhostscsisetupvqcmds runs from VHOSTSCSISETENDPOINT and allocates each command's protection scatterlist array protsgl according to the acknowledged VIRTIOSCSIFT10PI bit. The comma...

UBUNTU-CVE-2026-74702

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: reject feature changes after endpoint vhostscsisetupvqcmds runs from VHOSTSCSISETENDPOINT and allocates each command's protection scatterlist array protsgl according to the acknowledged VIRTIOSCSIFT10PI bit. The comma...

UBUNTU-CVE-2026-74703

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iterator before mapping the request scatterlists. A malformed request can claim protection bytes that cove...

CVE-2026-74702 vhost-scsi: reject feature changes after endpoint

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: reject feature changes after endpoint vhostscsisetupvqcmds runs from VHOSTSCSISETENDPOINT and allocates each command's protection scatterlist array protsgl according to the acknowledged VIRTIOSCSIFT10PI bit. The comma...

CVE-2026-74702 vhost-scsi: reject feature changes after endpoint

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: reject feature changes after endpoint vhostscsisetupvqcmds runs from VHOSTSCSISETENDPOINT and allocates each command's protection scatterlist array protsgl according to the acknowledged VIRTIOSCSIFT10PI bit. The comma...

CVE-2026-74702

CVE-2026-74702 affects the vhost-scsi component of the Linux kernel. The root cause is that vhost_scsi_setup_vq_cmds() allocates the protection scatterlist array (prot_sgl) based on the VIRTIO_SCSI_F_T10_PI feature bit at endpoint setup, but command pools are not rebuilt when VHOST_SET_FEATURES l...

CVE-2026-74703

CVE-2026-74703 affects the Linux kernel's vhost-scsi component. When T10 Protection Information (PI) is negotiated, a malformed request can declare protection bytes that cover or exceed the full payload length. This causes a zero data SGL count to reach sg_alloc_table_chained() , triggering a BUG...

CVE-2026-74703 vhost-scsi: Validate T10 PI scatterlist counts

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iterator before mapping the request scatterlists. A malformed request can claim protection bytes that cove...

EUVD-2026-64389

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: reject feature changes after endpoint vhostscsisetupvqcmds runs from VHOSTSCSISETENDPOINT and allocates each command's protection scatterlist array protsgl according to the acknowledged VIRTIOSCSIFT10PI bit. The comma...

CVE-2026-74703 vhost-scsi: Validate T10 PI scatterlist counts

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iterator before mapping the request scatterlists. A malformed request can claim protection bytes that cove...

EUVD-2026-64390

In the Linux kernel, the following vulnerability has been resolved: vhost-scsi: Validate T10 PI scatterlist counts When T10 PI is negotiated, vhost-scsi splits protection bytes from the data iterator before mapping the request scatterlists. A malformed request can claim protection bytes that cove...