High severity7.8NVD Advisory· Published Sep 10, 2020· Updated Jun 17, 2026

CVE-2020-25220

Description

The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernelllm-fuzzy2 versions
<4.9.233, <4.14.194, <4.19.140+ 1 more
- (no CPE)range: <4.9.233, <4.14.194, <4.19.140
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=4.9.0,<4.9.233
Linux/Linux kernel (ext4)cpe-rescue

Patches

Vulnerability mechanics

References

bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchThird Party Advisory
git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/nvdIssue TrackingPatchVendor Advisory
www.spinics.net/lists/stable/msg405099.htmlnvdMailing ListPatchThird Party Advisory
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.194nvdRelease NotesVendor Advisory
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.140nvdRelease NotesVendor Advisory
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.233nvdRelease NotesVendor Advisory
lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlnvdMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlnvdMailing ListThird Party Advisory
security.netapp.com/advisory/ntap-20201001-0004/nvdThird Party Advisory

News mentions

No linked articles in our index yet.

cvss	0.507
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000