kernel: md/bitmap: fix GPF in write_page caused by resize race

A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the bitmapdaemonwork and bitmapresize functions execute concurrently, they can access memory pages that have already been freed...

kernel: md/bitmap: fix GPF in write_page caused by resize race

A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the bitmapdaemonwork and bitmapresize functions execute concurrently, they can access memory pages that have already been freed...

AlmaLinux 8 : kernel-rt (ALSA-2026:21745)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:21745 advisory. kernel: Bluetooth: MGMT: Fix possible UAFs CVE-2025-39981 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183...

kernel security update

An update is available for kernel. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

RLSA-2026:19568 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: Make cakeenqueue return NETXMITCN when past bufferlimit CVE-2025-39766 kernel: scsi: qla2xxx: Fix improper freeing of purex item CVE-2025-68741 kernel: libceph: make decodepool...

kernel: md/bitmap: fix GPF in write_page caused by resize race

A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the bitmapdaemonwork and bitmapresize functions execute concurrently, they can access memory pages that have already been freed...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from th...

kernel: md/bitmap: fix GPF in write_page caused by resize race

A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the bitmapdaemonwork and bitmapresize functions execute concurrently, they can access memory pages that have already been freed...

kernel: md/bitmap: fix GPF in write_page caused by resize race

A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the bitmapdaemonwork and bitmapresize functions execute concurrently, they can access memory pages that have already been freed...

Astra Linux - уязвимость в linux-6.1

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: Synchronized bitmapgetstats with the lifetime of the bitmap. After the commit with the code ec6bb299c7c3 “md/md-bitmap: add ‘syncsize’ into struct mdbitmapstats, a panic is reported: Oops: General Protection Fault,...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: Check the return value of mdbitmapgetcounter. Check the return value of mdbitmapgetcounter in case it returns a NULL pointer, which would lead to a null pointer dereferencing. v2: Updated the check to includ...

Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: Do not set sb values if the sanity check fails. If the bitmap area contains invalid data, the kernel will crash. Then mdadm will trigger a “Segmentation fault”. This is a bug specific to cluster-md. In non-clustered...

CVE-2026-43163

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in writepage caused by resize race A General Protection Fault occurs in writepage during array resize: RIP: 0010:writepage+0x22b/0x3c0 mdmod This is a use-after-free race between bitmapdaemonwork and...

CVE-2026-43163

Impact: Linux kernel md/bitmap component vulnerable to a use-after-free race during array resize, causing a General Protection Fault in write_page. Root cause: concurrent access to bitmap->storage.filemap between bitmap_daemon_work() and __bitmap_resize(), with md_bitmap_file_unmap() freeing s...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the reuse of freed memory during the resize operation in the md/bitmap functions. This could...

PT-2026-37503

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free race condition exists between the bitmap daemon work and bitmap resize functions. The daemon iterates over bitmap-storage.filemap without proper locking, while the resiz...

Astra Linux - уязвимость в linux-5.10, linux-6.1, linux, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: md/raid10: check slab-out-of-bounds in mdbitmapgetcounter If we write a large number to md/bitmapsetbits, mdbitmapcheckpage will return -EINVAL because 'page = bitmap-pages', but the return value was not checked immediately in...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: fix incorrect usage for sbindex Commit d7038f951828 "md-bitmap: don't use -index for pages backing the bitmap file" removed page-index from bitmap code, but left wrong code logic for clustered-md. current code never...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004832)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004832 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: check the return value of mdbitmapgetcounter Check the return value of...

Azure Linux 3.0 Security Update: hyperv-daemons (CVE-2024-35787)

The version of hyperv-daemons installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-35787 advisory. - In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: fix incorrect usag...