blk-cgroup: fix UAF in __blkcg_rstat_flush()

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Linux Distros Unpatched Vulnerability : CVE-2026-63802

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one...

CVE-2026-63802

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one blkg's blkcgrstatflush removes another blkg's iostat entries via...

CVE-2026-63802

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one blkg's blkcgrstatflush removes another blkg's iostat entries via...

CVE-2026-63802 blk-cgroup: fix UAF in __blkcg_rstat_flush()

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one blkg's blkcgrstatflush removes another blkg's iostat entries via...

CVE-2026-63802

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in blkcgrstatflush When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur. The race happens when one blkg's blkcgrstatflush removes another blkg's iostat entries via...

PT-2026-61118

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the blk-cgroup component. This occurs when multiple blkg structures within the same blkcg are released concurrently. A race condition arises when the blk...

kernel: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from reorder of WRITE -lqueued blkcgrstatflush can be run anytime, especially when blkcgroupbiostart is being executed. If WRITE of -lqueued is re-ordered with READ of 'bisc-lnode.next' in the loop...

SUSE CVE-2024-38384

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from reorder of WRITE -lqueued blkcgrstatflush can be run anytime, especially when blkcgroupbiostart is being executed. If WRITE of -lqueued is re-ordered with READ of 'bisc-lnode.next' in the loop...

CVE-2024-0443

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgrouprstatflush is only called at cssreleaseworkfn, which is called when the blkcg reference count reaches 0. This circula...

UBUNTU-CVE-2024-0443

A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgrouprstatflush is only called at cssreleaseworkfn, which is called when the blkcg reference count reaches 0. This circula...