CVE-2023-52639

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Source
https://cve.org/CVERecord?id=CVE-2023-52639
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52639.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-52639
Downstream
Related
Published
2024-04-03T14:54:47.009Z
Modified
2026-03-14T12:16:49.979031Z
Summary
KVM: s390: vsie: fix race during shadow creation
Details

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 kvms390vsiegmapnotifier resulting in a crash. This is due to the fact that we add gmap->private == kvm after creation:

static int acquiregmapshadow(struct kvmvcpu *vcpu, struct vsiepage *vsiepage) { [...] gmap = gmapshadow(vcpu->arch.gmap, asce, edat); if (ISERR(gmap)) return PTRERR(gmap); gmap->private = vcpu->kvm;

Let children inherit the private field of the parent.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52639.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
a3508fbe9dc6dd3bece0c7bf889cc085a011738c
Fixed
5df3b81a567eb565029563f26f374ae3803a1dfc
Fixed
f5572c0323cf8b4f1f0618178648a25b8fb8a380
Fixed
28bb27824f25f36e5f80229a358d66ee09244082
Fixed
fe752331d4b361d43cfd0b89534b4b2176057c32

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52639.json"