CVE-2024-36953

NameCVE-2024-36953
DescriptionIn the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-v2: Check for non-NULL vCPU in vgic_v2_parse_attr() vgic_v2_parse_attr() is responsible for finding the vCPU that matches the user-provided CPUID, which (of course) may not be valid. If the ID is invalid, kvm_get_vcpu_by_id() returns NULL, which isn't handled gracefully. Similar to the GICv3 uaccess flow, check that kvm_get_vcpu_by_id() actually returns something and fail the ioctl if not.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3843-1, DSA-5703-1, ELA-1120-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie, jessie (lts)3.16.84-1vulnerable
stretch (security)4.9.320-2vulnerable
stretch (lts), stretch4.9.320-3vulnerable
buster (security), buster, buster (lts)4.19.316-1vulnerable
bullseye (security), bullseye5.10.223-1fixed
bookworm6.1.106-3fixed
bookworm (security)6.1.99-1fixed
trixie6.10.6-1fixed
sid6.10.7-1fixed
linux-5.10 (PTS)jessie, jessie (lts)5.10.218-1~deb8u1fixed
stretch (lts), stretch5.10.218-1~deb9u1fixed
buster (security), buster, buster (lts)5.10.218-1~deb10u1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie(unfixed)end-of-life
linuxsourcestretch(unfixed)end-of-life
linuxsourcebuster(unfixed)end-of-life
linuxsourcebullseye5.10.218-1DSA-5703-1
linuxsourcebookworm6.1.94-1
linuxsource(unstable)6.8.11-1
linux-5.10sourcejessie5.10.218-1~deb8u1ELA-1120-1
linux-5.10sourcestretch5.10.218-1~deb9u1ELA-1120-1
linux-5.10sourcebuster5.10.218-1~deb10u1DLA-3843-1

Notes

https://git.kernel.org/linus/6ddb4f372fc63210034b903d96ebbeb3c7195adb (6.9-rc7)

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