CVE-2026-53319

In the Linux kernel, the following vulnerability has been resolved: blk-wbt: remove WARNONONCE from wbtinitenabledefault wbtinitenabledefault uses WARNONONCE to check for failures from wbtalloc and wbtinit. However, both are expected failure paths: - wbtalloc can return NULL under memory pressure...

SUSE CVE-2025-68807

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

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...

UBUNTU-CVE-2025-68807

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

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...

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...

DEBIAN-CVE-2025-22125

In the Linux kernel, the following vulnerability has been resolved: md/raid1,raid10: don't ignore IO flags If blk-wbt is enabled by default, it's found that raid write performance is quite bad because all IO are throttled by wbt of underlying disks, due to flag REQIDLE is ignored. And turns out...