UBUNTU-CVE-2023-54088

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queuelock when removing blkg-qnode When blkg is removed from q-blkglist from blkgfreeworkfn, queuelock has to be held, otherwise, all kinds of bugslist corruption, hard lockup, .. can be triggered from...

UBUNTU-CVE-2023-54107

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: dropping parent refcount after pdfreefn is done Some cgroup policies will access parent pd through child pd even after pdofflinefn is done. If pdfreefn for parent is called before child, then UAF can be triggered. Hen...

CVE-2023-54107

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: dropping parent refcount after pdfreefn is done Some cgroup policies will access parent pd through child pd even after pdofflinefn is done. If pdfreefn for parent is called before child, then UAF can be triggered. Hen...

CVE-2023-54088

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queuelock when removing blkg-qnode When blkg is removed from q-blkglist from blkgfreeworkfn, queuelock has to be held, otherwise, all kinds of bugslist corruption, hard lockup, .. can be triggered from...

CVE-2023-54107 blk-cgroup: dropping parent refcount after pd_free_fn() is done

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: dropping parent refcount after pdfreefn is done Some cgroup policies will access parent pd through child pd even after pdofflinefn is done. If pdfreefn for parent is called before child, then UAF can be triggered. Hen...

CVE-2023-54107

CVE-2023-54107 relates to the Linux kernel blk-cgroup Use-After-Free caused by the parent blkg refcount being dropped before the parent’s pd_free_fn() executes. The issue occurs because __blkg_release() drops the parent refcount in a path that precedes the asynchronous blkg_free_work_fn() where p...

CVE-2023-54107 blk-cgroup: dropping parent refcount after pd_free_fn() is done

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: dropping parent refcount after pdfreefn is done Some cgroup policies will access parent pd through child pd even after pdofflinefn is done. If pdfreefn for parent is called before child, then UAF can be triggered. Hen...

CVE-2023-54088

Technical details about CVE-2023-54088 (Linux blk-cgroup queue_lock handling) are not publicly provided in the supplied documents. Monitor OSV and distro advisories for patched versions and fixes.

CVE-2023-54088 blk-cgroup: hold queue_lock when removing blkg->q_node

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queuelock when removing blkg-qnode When blkg is removed from q-blkglist from blkgfreeworkfn, queuelock has to be held, otherwise, all kinds of bugslist corruption, hard lockup, .. can be triggered from...

CVE-2023-54088 blk-cgroup: hold queue_lock when removing blkg->q_node

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: hold queuelock when removing blkg-qnode When blkg is removed from q-blkglist from blkgfreeworkfn, queuelock has to be held, otherwise, all kinds of bugslist corruption, hard lockup, .. can be triggered from...

CVE-2025-68742

CVE-2025-68742: In the Linux kernel, a fault injection in update_effective_progs can cause a BPF prog to be replaced with a dummy prog, leading to a NULL dereference when a softirq runs and accesses prog->stats. The fix prevents updating stats if stats is NULL, avoiding the invalid memory acce...

CVE-2023-54019

In the Linux kernel, the following vulnerability has been resolved: sched/psi: use kernfs polling functions for PSI trigger polling Destroying psi trigger in cgroupfilerelease causes UAF issues when a cgroup is removed from under a polling process. This is happening because cgroup removal causes ...

UBUNTU-CVE-2023-54019

In the Linux kernel, the following vulnerability has been resolved: sched/psi: use kernfs polling functions for PSI trigger polling Destroying psi trigger in cgroupfilerelease causes UAF issues when a cgroup is removed from under a polling process. This is happening because cgroup removal causes ...

CVE-2023-54019

In the Linux kernel, the following vulnerability has been resolved: sched/psi: use kernfs polling functions for PSI trigger polling Destroying psi trigger in cgroupfilerelease causes UAF issues when a cgroup is removed from under a polling process. This is happening because cgroup removal causes ...

CVE-2023-54019

CVE-2023-54019 concerns the Linux kernel PSI (pressure stall information) polling path. The issue arises during cgroup removal when a polling process may still hold the psi_trigger’s waitqueue, leading to a use-after-free (UAF) of the trigger if it is destroyed in cgroup_file_release. The root ca...

CVE-2023-54019 sched/psi: use kernfs polling functions for PSI trigger polling

In the Linux kernel, the following vulnerability has been resolved: sched/psi: use kernfs polling functions for PSI trigger polling Destroying psi trigger in cgroupfilerelease causes UAF issues when a cgroup is removed from under a polling process. This is happening because cgroup removal causes ...

CVE-2023-54019 sched/psi: use kernfs polling functions for PSI trigger polling

In the Linux kernel, the following vulnerability has been resolved: sched/psi: use kernfs polling functions for PSI trigger polling Destroying psi trigger in cgroupfilerelease causes UAF issues when a cgroup is removed from under a polling process. This is happening because cgroup removal causes ...

PT-2025-53184

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to the blk-cgroup subsystem. Specifically, the issue involves dropping the reference count of a parent block group blkg before the pd free fn...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a psi trigger destruction on cgroup removal leading to a post-release reuse issue that could result in memor...

PT-2025-53165

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel’s block cgroup functionality. Specifically, the issue arises when removing a block group blkg from a queue’s list q-blkg list without holding the queue...