SUSE CVE-2026-45890

In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...

CVE-2026-45890

A flaw was found in the Linux kernel's xen-netback component. A malicious or buggy Xen guest can exploit this by writing a zero value to the 'multi-queue-num-queues' xenbus key. This improper input validation can trigger a warning in the kernel's memory allocation, leading to a guest-to-host Deni...

EUVD-2026-32356

In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...

CVE-2026-45890

In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...

UBUNTU-CVE-2026-45890

In the Linux kernel, the following vulnerability has been resolved: xen-netback: reject zero-queue configuration from guest A malicious or buggy Xen guest can write "0" to the xenbus key "multi-queue-num-queues". The connect function in the backend only validates the upper bound requestednumqueue...

CVE-2026-46079 rbd: fix null-ptr-deref when device_add_disk() fails

In the Linux kernel, the following vulnerability has been resolved: rbd: fix null-ptr-deref when deviceadddisk fails dorbdadd publishes the device with deviceadd before calling deviceadddisk. If deviceadddisk fails after deviceadd succeeds, the error path calls rbdfreedisk directly and then later...

CVE-2026-45890

The CVE-2026-45890 issue affects the Linux kernel Xen-netback. A Xen guest can set multi-queue-num-queues to 0; the connect() validation checks only the upper bound (requested_num_queues > xenvif_max_queues) and does not reject zero. This can reach vzalloc(array_size(0, sizeof(struct xenvif_qu...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: blk-mq: A bug was fixed regarding tag leaks when shrinking nrhwqueues. Although we don’t need to reallocate set-tags when shrinking nrhwqueues, we still need to free those tags. Otherwise, these tags may be leaked. How to reprodu...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerabilities have been resolved: blk-mq: Fixed a possible memory leak when registering the ‘hctx’ variable failed. There is one issue that arises during fault injection tests: An unreferenced object: 0xffff888132a9f400 size 512. The following operations were...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: blk-mq: Fixed a NULL dereference on q-elevator in blkmqelvswitchnone. After acquiring the q-sysfslock, q-elevator may become NULL due to the elevator switch. This issue was addressed by checking q-elevator with a lock to prevent...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021572)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021572 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: avoid double -queuerq because of early timeout David Jeffery found one double -queuerq...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021568)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021568 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: use quiesced elevator switch when reinitializing queues The hctx's runwork may be racing...

Astra Linux - уязвимость в linux-5.15

In the Linux kernel, the following vulnerabilities have been resolved: blk-mq: Fixed a memory leak in blkmqinitallocatedqueue. There is a memory leak caused by modprobe nullblk.ko. Unreferenced object 0xffff8881acb1f000 size 1024: - Command: “modprobe”, PID: 836, Jiffies: 4294971190 Age: 27.068...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013449)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013449 advisory. In the Linux kernel, the following vulnerability has been resolved: dm rq: don't queue request to blk-mq during DM suspend DM uses blk-mq's quiesce/unquiesce to...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010746)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010746 advisory. In the Linux kernel, the following vulnerability has been resolved: dm rq: don't queue request to blk-mq during DM suspend DM uses blk-mq's quiesce/unquiesce to...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011029)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011029 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix possible memleak when register 'hctx' failed There's issue as follows when do fault...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013096)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013096 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: check kobject stateinsysfs before deleting in blkmqunregisterhctx In blkmqupdatenrhwqueue...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010845)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010845 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: use quiesced elevator switch when reinitializing queues The hctx's runwork may be racing...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010748)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010748 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: cancel blk-mq dispatch work in both blkcleanupqueue and diskrelease For avoiding to slow...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-007017)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007017 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix possible memleak when register 'hctx' failed There's issue as follows when do fault...