Rocky Linux: CVE-2024-35791: kernel (RLSA-2024-6567)
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region() Do the cache flush of converted pages in svm_register_enc_region() before dropping kvm->lock to fix use-after-free issues where region and/or its array of pages could be freed by a different task, e.g. if userspace has __unregister_enc_region_locked() already queued up for the region. Note, the "obvious" alternative of using local variables doesn't fully resolve the bug, as region->pages is also dynamically allocated. I.e. the region structure itself would be fine, but region->pages could be freed. Flushing multiple pages under kvm->lock is unfortunate, but the entire flow is a rare slow path, and the manual flush is only needed on CPUs that lack coherency for encrypted memory.
Solution(s)
- rocky-upgrade-bpftool
- rocky-upgrade-bpftool-debuginfo
- rocky-upgrade-kernel
- rocky-upgrade-kernel-core
- rocky-upgrade-kernel-cross-headers
- rocky-upgrade-kernel-debug
- rocky-upgrade-kernel-debug-core
- rocky-upgrade-kernel-debug-debuginfo
- rocky-upgrade-kernel-debug-devel
- rocky-upgrade-kernel-debug-devel-matched
- rocky-upgrade-kernel-debug-modules
- rocky-upgrade-kernel-debug-modules-core
- rocky-upgrade-kernel-debug-modules-extra
- rocky-upgrade-kernel-debug-uki-virt
- rocky-upgrade-kernel-debuginfo
- rocky-upgrade-kernel-devel
- rocky-upgrade-kernel-devel-matched
- rocky-upgrade-kernel-headers
- rocky-upgrade-kernel-modules
- rocky-upgrade-kernel-modules-core
- rocky-upgrade-kernel-modules-extra
- rocky-upgrade-kernel-rt
- rocky-upgrade-kernel-rt-core
- rocky-upgrade-kernel-rt-debug
- rocky-upgrade-kernel-rt-debug-core
- rocky-upgrade-kernel-rt-debug-debuginfo
- rocky-upgrade-kernel-rt-debug-devel
- rocky-upgrade-kernel-rt-debug-kvm
- rocky-upgrade-kernel-rt-debug-modules
- rocky-upgrade-kernel-rt-debug-modules-core
- rocky-upgrade-kernel-rt-debug-modules-extra
- rocky-upgrade-kernel-rt-debuginfo
- rocky-upgrade-kernel-rt-devel
- rocky-upgrade-kernel-rt-kvm
- rocky-upgrade-kernel-rt-modules
- rocky-upgrade-kernel-rt-modules-core
- rocky-upgrade-kernel-rt-modules-extra
- rocky-upgrade-kernel-tools
- rocky-upgrade-kernel-tools-debuginfo
- rocky-upgrade-kernel-tools-libs
- rocky-upgrade-kernel-tools-libs-devel
- rocky-upgrade-kernel-uki-virt
- rocky-upgrade-kernel-zfcpdump
- rocky-upgrade-kernel-zfcpdump-core
- rocky-upgrade-kernel-zfcpdump-debuginfo
- rocky-upgrade-kernel-zfcpdump-devel
- rocky-upgrade-kernel-zfcpdump-devel-matched
- rocky-upgrade-kernel-zfcpdump-modules
- rocky-upgrade-kernel-zfcpdump-modules-core
- rocky-upgrade-kernel-zfcpdump-modules-extra
- rocky-upgrade-libperf
- rocky-upgrade-libperf-debuginfo
- rocky-upgrade-perf
- rocky-upgrade-perf-debuginfo
- rocky-upgrade-python3-perf
- rocky-upgrade-python3-perf-debuginfo
- rocky-upgrade-rtla
- rocky-upgrade-rv
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
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