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CVE-2023-52639

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-7121-3
Posted Nov 25, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7121-3 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48733, CVE-2022-48938, CVE-2022-48943, CVE-2023-52502, CVE-2023-52531, CVE-2023-52599, CVE-2023-52614, CVE-2023-52639, CVE-2024-26668, CVE-2024-26675, CVE-2024-36020, CVE-2024-36953, CVE-2024-38538, CVE-2024-38560
SHA-256 | e3878773279c2cc7787becc280d79d35ca2a4f4d79b0fc182cbb738a521ca071
Ubuntu Security Notice USN-7121-2
Posted Nov 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7121-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48733, CVE-2022-48938, CVE-2022-48943, CVE-2023-52502, CVE-2023-52531, CVE-2023-52599, CVE-2023-52614, CVE-2023-52639, CVE-2024-26668, CVE-2024-26675, CVE-2024-36020, CVE-2024-36953, CVE-2024-38538, CVE-2024-38560
SHA-256 | 223942b47ef30b7d3a955f60c12af00a5f9088ad5192855d21ec724efb01c839
Ubuntu Security Notice USN-7121-1
Posted Nov 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7121-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48733, CVE-2022-48938, CVE-2022-48943, CVE-2023-52502, CVE-2023-52531, CVE-2023-52599, CVE-2023-52614, CVE-2023-52639, CVE-2024-26668, CVE-2024-26675, CVE-2024-36020, CVE-2024-36953, CVE-2024-38538, CVE-2024-38560
SHA-256 | a5d279642a2825e810ea4cd3f8cf90409d9d98c7800a435ae7b18ad49a98dac3
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