CVE - CVE-2023-52639

CVE-ID
CVE-2023-52639	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082 URL:https://git.kernel.org/stable/c/28bb27824f25f36e5f80229a358d66ee09244082 MISC:https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc URL:https://git.kernel.org/stable/c/5df3b81a567eb565029563f26f374ae3803a1dfc MISC:https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380 URL:https://git.kernel.org/stable/c/f5572c0323cf8b4f1f0618178648a25b8fb8a380 MISC:https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32 URL:https://git.kernel.org/stable/c/fe752331d4b361d43cfd0b89534b4b2176057c32
Assigning CNA
kernel.org
Date Record Created
20240306	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240306)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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