CVE-2023-52639
KVM: s390: vsie: fix race during shadow creation
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: fix race during shadow creation Right now it is possible to see gmap->private being zero in kvm_s390_vsie_gmap_notifier resulting in a crash. This is due to the fact that we add gmap->private == kvm after creation: static int acquire_gmap_shadow(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) { [...] gmap = gmap_shadow(vcpu->arch.gmap, asce, edat); if (IS_ERR(gmap)) return PTR_ERR(gmap); gmap->private = vcpu->kvm; Let children inherit the private field of the parent.
INFO
Published Date :
April 3, 2024, 3:15 p.m.
Last Modified :
March 17, 2025, 3:40 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Reboot the system to apply the updated kernel.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-52639.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-52639 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-52639
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-52639 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52639 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-362 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.7.6 *cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.22 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.8 from (excluding) 6.1.82 Added Reference Type CVE: https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082 Added Reference https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc Added Reference https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380 Added Reference https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 03, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: fix race during shadow creation Right now it is possible to see gmap->private being zero in kvm_s390_vsie_gmap_notifier resulting in a crash. This is due to the fact that we add gmap->private == kvm after creation: static int acquire_gmap_shadow(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) { [...] gmap = gmap_shadow(vcpu->arch.gmap, asce, edat); if (IS_ERR(gmap)) return PTR_ERR(gmap); gmap->private = vcpu->kvm; Let children inherit the private field of the parent. Added Reference kernel.org https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32 [No types assigned]