CVE-2025-71135

CVE-2025-71135 (Linux kernel md/raid5): The issue is a possible NULL pointer dereference in raid5_store_group_thread_cnt() when mddev->private (conf) is NULL. The fix prevents using conf by returning early/unlocking before raid5_quiesce() if conf is NULL, as described in the Astra Linux and re...

CVE-2025-71135 md/raid5: fix possible null-pointer dereferences in raid5_store_group_thread_cnt()

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix possible null-pointer dereferences in raid5storegroupthreadcnt The variable mddev-private is first assigned to conf and then checked: conf = mddev-private; if !conf ... If conf is NULL, then mddev-private is also...

block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock

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SUSE CVE-2025-68756

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

CVE-2025-68756

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

CVE-2025-68756

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

UBUNTU-CVE-2025-68756

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

CVE-2025-68756 block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

CVE-2025-68756 block: Use RCU in blk_mq_[un]quiesce_tagset() instead of set->tag_list_lock

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

CVE-2025-68756

In the Linux kernel, the following vulnerability has been resolved: block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure that tagset and queues are marked as shared when two or more queues ar...

CVE-2025-68756

CVE-2025-68756 affects the Linux kernel block layer where blk_mq_[un]quiesce_tagset() and related tag-set management functions can deadlock when NVMe timeout handling and tagset changes interact on shared tagsets. The vulnerability arises because quiescing tagsets and freezing queues previously-r...

PT-2026-1244

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw related to tagset management within the block layer. Specifically, the blk mq unquiesce tagset functions, used for managing queues, were updated to use...

Linux Distros Unpatched Vulnerability : CVE-2025-68756

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - block: Use RCU in blkmqunquiescetagset instead of set-taglistlock blkmqadd,delqueuetagset functions add and remove queues from tagset, the functions make sure...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the use of set-taglistlock mutually exclusive locks by the blkmqquiescetagset and blkmqunquiescetagset...

CVE-2022-49492 nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix a NULL pointer dereference in nvmeallocadmintags In nvmeallocadmintags, the adminq can be set to an error typically -ENOMEM if the blkmqinitqueue call fails to set up the queue, which is checked immediately after th...

PT-2026-2896

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the md/raid5 component where null-pointer dereferences can occur in the raid5 store group thread cnt function. This happens when the mddev-private...

kernel: io_uring/rsrc: don't lock while !TASK_RUNNING

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't lock while !TASKRUNNING There is a report of iorsrcrefquiesce locking a mutex while not TASKRUNNING, which is due to forgetting restoring the state back after ioruntaskworksig and attempts to break out of the...

SUSE CVE-2024-40922

In the Linux kernel, the following vulnerability has been resolved: iouring/rsrc: don't lock while !TASKRUNNING There is a report of iorsrcrefquiesce locking a mutex while not TASKRUNNING, which is due to forgetting restoring the state back after ioruntaskworksig and attempts to break out of the...

DEBIAN-CVE-2021-47552

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 down queue destroy, we don't call blkmqquiescequeue in blkcleanupqueue, instead of delaying to cancel dispatch work in...

UBUNTU-CVE-2021-47552

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 down queue destroy, we don't call blkmqquiescequeue in blkcleanupqueue, instead of delaying to cancel dispatch work in...