CVE-2026-31586

In the Linux kernel, the following vulnerability has been resolved: mm: blk-cgroup: fix use-after-free in cgwbreleaseworkfn cgwbreleaseworkfn calls cssputwb-blkcgcss and then later accesses wb-blkcgcss again via blkcgunpinonline. If cssput drops the last reference, the blkcg can be freed...

DEBIAN-CVE-2026-31586

In the Linux kernel, the following vulnerability has been resolved: mm: blk-cgroup: fix use-after-free in cgwbreleaseworkfn cgwbreleaseworkfn calls cssputwb-blkcgcss and then later accesses wb-blkcgcss again via blkcgunpinonline. If cssput drops the last reference, the blkcg can be freed...

EUVD-2026-25479

In the Linux kernel, the following vulnerability has been resolved: mm: blk-cgroup: fix use-after-free in cgwbreleaseworkfn cgwbreleaseworkfn calls cssputwb-blkcgcss and then later accesses wb-blkcgcss again via blkcgunpinonline. If cssput drops the last reference, the blkcg can be freed...

CVE-2026-31586

In the Linux kernel, the following vulnerability has been resolved: mm: blk-cgroup: fix use-after-free in cgwbreleaseworkfn cgwbreleaseworkfn calls cssputwb-blkcgcss and then later accesses wb-blkcgcss again via blkcgunpinonline. If cssput drops the last reference, the blkcg can be freed...

CVE-2026-31586

Summary: CVE-2026-31586 is a Linux kernel use-after-free in blk-cgroup during cgwb_release_workfn. The vulnerability occurs when css_put(wb->blkcg_css) is followed by accessing wb->blkcg_css via blkcg_unpin_online(), which can free the blkcg asynchronously (css_free_rwork_fn -> kfree) if...

PT-2026-34938

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the function cgwb release workfn. The function calls css putwb-blkcg css and subsequently accesses wb-blkcg css again via blkcg unpin online. If css put...