UBUNTU-CVE-2025-68772

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

CVE-2025-68807

CVE-2025-68807 concerns a race in the Linux kernel involving wbt_enable_default and IO submission that could lead to a negative inflight writeback counter and hung tasks. According to Red Hat, SUSE, Ubuntu, Debian, and other sources, the fix splits wbt_enable_default() into three functions (__wbt...

CVE-2025-68807 block: fix race between wbt_enable_default and IO submission

In the Linux kernel, the following vulnerability has been resolved: block: fix race between wbtenabledefault and IO submission When wbtenabledefault is moved out of queue freezing in elevatorchange, it can cause the wbt inflight counter to become negative -1, leading to hung tasks in the writebac...

CVE-2025-68807 block: fix race between wbt_enable_default and IO submission

In the Linux kernel, the following vulnerability has been resolved: block: fix race between wbtenabledefault and IO submission When wbtenabledefault is moved out of queue freezing in elevatorchange, it can cause the wbt inflight counter to become negative -1, leading to hung tasks in the writebac...

CVE-2025-68772 f2fs: fix to avoid updating compression context during writeback

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

CVE-2025-68772

The CVE-2025-68772 entry relates to the Linux kernel f2fs subsystem. The issue arises during writeback when compression context is updated for a possibly compressed file, leading to a race where i_cluster_size may be inconsistent (0 vs 4) and can trigger a divide-by-zero in f2fs_all_cluster_page_...

CVE-2025-68772 f2fs: fix to avoid updating compression context during writeback

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

CVE-2025-68772

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 1 PREEMPTfull Hardware...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Ensure that no dirty metadata is written back for a file system with errors. BUG During the development of a minor feature make sure that all btrfsbio::endio calls are performed in a task context, I noticed a crash in...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: fs: quota: creating a dedicated workqueue for quotareleasework There is a kernel panic due to WARNONCE when paniconwarn is set. This issue occurs when writeback is triggered due to a sync call for an opened file i.e., the reason...

Linux Distros Unpatched Vulnerability : CVE-2025-68772

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng reported a bug as below: Oops: divide error: 0000 1 SMP KASAN PTI CPU: 0 UID: 0...

PT-2026-2539

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists between wbt enable default and IO submission within the Linux kernel's block subsystem. Moving wbt enable default out of queue freezing can lead to a negative...

K000159018: Linux kernel vulnerability CVE-2023-53178

Security Advisory Description In the Linux kernel, the following vulnerability has been resolved: mm: fix zswap writeback race condition The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to ...

PT-2026-22920

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description The Linux kernel contains a use-after-free issue in the f2fs write end io function. This issue occurs due to a race condition where memory associated with the superblock sbi is freed whi...

PT-2026-6123

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a deadlock issue involving NFSv4.1 state recovery. The deadlock occurs when kthreadd attempts to reclaim memory by calling the nfs release folio function, which...

PT-2026-8152

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.18 Description The Linux kernel contains a flaw in the btrfs subsystem related to dirty metadata page handling. Specifically, the kernel may strictly require a dirty metadata threshold for metadata writepages,...

PT-2026-6179

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s fs/writeback functionality, specifically within the wait sb inodes function. The issue involves skipping AS NO DATA INTEGRITY mappings, which can caus...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-992904)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992904 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix null-ptr-deref in ext4writeinfo I caught a null-ptr-deref bug as follows:...

EUVD-2023-60459

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to check readonly condition correctly With below case, it can mount multi-device image w/ rw option, however one of secondary device is set as ro, later update will cause panic, so let's introduce f2fsdevisreadonly, and...

EUVD-2023-60461

In the Linux kernel, the following vulnerability has been resolved: btrfs: handle case when repair happens with dev-replace BUG There is a bug report that a BUGON in btrfsrepairiofailure originally repairiofailure in v6.0 kernel got triggered when replacing a unreliable disk: BTRFS warning device...