CVE-2023-52639

Updated: 2024-06-12 08:06:59.025995

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.


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x NONE 0
CVSS Version 3.x MEDIUM 4.7

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 4.7 MEDIUM Ignored 2024-06-24 11:19:48
AlmaLinux 9.2 FIPS kernel 5.14.0 4.7 MEDIUM Ignored 2024-06-24 11:19:50
CentOS 6 ELS kernel 2.6.32 4.7 MEDIUM Ignored 2024-06-24 10:09:46
CentOS 7 ELS kernel 3.10.0 4.7 MEDIUM Ignored 2024-06-24 11:19:48
CentOS 8.4 ELS kernel 4.18.0 4.7 MEDIUM Ignored 2024-06-24 11:19:48
CentOS 8.5 ELS kernel 4.18.0 4.7 MEDIUM Ignored 2024-06-24 11:19:48
CentOS Stream 8 ELS kernel 4.18.0 4.7 MEDIUM Ignored 2024-06-24 11:19:47
CloudLinux 6 ELS kernel 2.6.32 4.7 MEDIUM Ignored 2024-06-24 10:09:46
Oracle Linux 6 ELS kernel 2.6.32 4.7 MEDIUM Ignored 2024-06-24 10:09:44
Ubuntu 16.04 ELS linux-hwe 4.15.0 4.7 MEDIUM Ignored 2024-11-27 11:55:15
Total: 12