CVE-2026-90276 md/md-llbitmap: stop daemon timer rearm on destroy

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: stop daemon timer rearm on destroy llbitmapdestroy deletes pendingtimer before flushing mdllbitmapiowq. However, daemonwork can still be queued or running after the timer has been deleted, and the daemon path can...

CVE-2026-90276

CVE-2026-90276 is a use-after-free in the Linux kernel's md/md-llbitmap (software RAID) subsystem. During llbitmap_destroy(), the pending_timer is deleted before flushing the shared I/O workqueue. However, daemon_work may still be queued or running, and the daemon path can rearm pending_timer whe...

EUVD-2026-81869

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: stop daemon timer rearm on destroy llbitmapdestroy deletes pendingtimer before flushing mdllbitmapiowq. However, daemonwork can still be queued or running after the timer has been deleted, and the daemon path can...

CVE-2026-90276 md/md-llbitmap: stop daemon timer rearm on destroy

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: stop daemon timer rearm on destroy llbitmapdestroy deletes pendingtimer before flushing mdllbitmapiowq. However, daemonwork can still be queued or running after the timer has been deleted, and the daemon path can...

PT-2026-94624

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the md/md-llbitmap component where the llbitmap destroy function deletes the pending timer before flushing the md llbitmap io wq workqueue. Because daemon work may sti...

CVE-2026-90278: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: md: wait for behind writes before destroying bitmap mdstop destroyed the bitmap before calling mddevdetach. That made mddevdetach skip bitmapops-waitbehindwrites, because the bitmap was already disconnected from mddev. This was...

CVE-2026-90276: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: stop daemon timer rearm on destroy llbitmapdestroy deletes pendingtimer before flushing mdllbitmapiowq. However, daemonwork can still be queued or running after the timer has been deleted, and the daemon path can...

PT-2026-94626

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the md stop function where the bitmap is destroyed before mddev detach is called. This sequence causes mddev detach to skip the bitmap ops-wait behind writes operation...

PT-2026-94625

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the md/md-llbitmap component. The llbitmap create function publishes mddev-bitmap before reading the bitmap superblock. If the llbitmap read sb...

CVE-2026-90277: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: prevent create failure bitmap UAF llbitmapcreate publishes mddev-bitmap before reading the bitmap superblock. This is needed because llbitmapreadsb can initialize a new bitmap and flush it through helpers that use...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: The barrier raising operation was moved before the state machine transition. The barrier raising operation was moved before calling llbitmapstatemachine in both llbitmapstartwrite and llbitmapstartdiscard. This...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: Fixed the issue where percpuref does not resume after a suspend timeout. When llbitmapsuspendtimeout times out waiting for percpuref to become zero, it returns -ETIMEDOUT without resuming percpuref. The caller...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fixed an issue where IO hangs when using a degraded array with llbitmap. When the state of the llbitmap bit is still unwritten, any new write operation should force the use of rcw. This is because bitmapops-blockssynced...

SUSE CVE-2026-45953

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix IO hang with degraded array with llbitmap When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops-blockssynced is checked in handlestripedirtying. However, later the same check is...

SUSE CVE-2026-45955

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: fix percpuref not resurrected on suspend timeout When llbitmapsuspendtimeout times out waiting for percpuref to become zero, it returns -ETIMEDOUT without resurrecting the percpuref. The caller mdllbitmapdaemonfn...

SUSE CVE-2026-46095

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: raise barrier before state machine transition Move the barrier raise operation before calling llbitmapstatemachine in both llbitmapstartwrite and llbitmapstartdiscard. This ensures the barrier is in place before a...

Linux Distros Unpatched Vulnerability : CVE-2026-45955

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: fix percpuref not resurrected on suspend timeout When llbitmapsuspendtimeout...

CVE-2026-45955

A flaw was found in the Linux kernel's md/md-llbitmap component. This vulnerability occurs when a suspend operation times out, failing to properly reset a critical internal reference. This oversight leaves the system's page control structure in an unusable state. This issue can lead to system...

EUVD-2026-32237

In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix IO hang with degraded array with llbitmap When llbitmap bit state is still unwritten, any new write should force rcw, as bitmapops-blockssynced is checked in handlestripedirtying. However, later the same check is...

EUVD-2026-32239

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: fix percpuref not resurrected on suspend timeout When llbitmapsuspendtimeout times out waiting for percpuref to become zero, it returns -ETIMEDOUT without resurrecting the percpuref. The caller mdllbitmapdaemonfn...