SUSE-SU-2026:22763-1 Security update for the Linux Kernel (Live Patch 11 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.32.1 fixes various security issues The following security issues were fixed: - CVE-2026-31505: iavf: fix out-of-bounds writes in iavfgetethtoolstats bsc1263094. - CVE-2026-31533: net/tls: fix use-after-free in -EBUSY error path of...

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

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...

CVE-2026-31586 mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()

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...