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kernel: KVM: NULL pointer dereference in kvm_dirty_ring_push in virt/kvm/dirty_ring.c

🗓️ 08 Nov 2022 09:25:15Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

Null pointer dereference in KVM dirty ring release enables unprivileged local attacker to trigger ioctls and kernel oops.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2022-1263
31 Aug 202216:15
–attackerkb
Tenable Nessus		Amazon Linux 2022 : bpftool, kernel, kernel-devel (ALAS2022-2022-083)
6 Sep 202200:00
–nessus
Tenable Nessus		Amazon Linux 2022 : bpftool, kernel, kernel-devel (ALAS2022-2022-185)
5 Nov 202200:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-070)
21 Mar 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.15-2022-001)
10 Jun 202200:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-023)
6 Sep 202300:00
–nessus
Tenable Nessus		CBL Mariner 2.0 Security Update: kernel (CVE-2022-1263)
28 Mar 202300:00
–nessus
Tenable Nessus		Oracle Linux 8 : Unbreakable Enterprise kernel (ELSA-2022-9533)
1 Jul 202200:00
–nessus
Tenable Nessus		Oracle Linux 8 : Unbreakable Enterprise kernel-container (ELSA-2022-9534)
1 Jul 202200:00
–nessus
Tenable Nessus		RHEL 8 : kernel-rt (RHSA-2022:7444)
8 Nov 202200:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8x86_64kernel-rt0:4.18.0-425.3.1.rt7.213.el8kernel-rt-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-core0:4.18.0-425.3.1.rt7.213.el8kernel-rt-core-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-core0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-core-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-debuginfo0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-debuginfo-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-devel0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-devel-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-kvm0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-kvm-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-modules-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debug-modules-extra0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debug-modules-extra-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
Red Hat Enterprise Linux8x86_64kernel-rt-debuginfo0:4.18.0-425.3.1.rt7.213.el8kernel-rt-debuginfo-0:4.18.0-425.3.1.rt7.213.el8.x86_64.rpm
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03 Jul 2026 02:27Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.15.5
EPSS0.00419
CWE-476
kernelvirtual machinedirty ringioctl callsunprivileged attacker
6