In the Linux kernel, the following vulnerability has been resolved:
KVM: Stop looking for coalesced MMIO zones if the bus is destroyed
Abort the walk of coalesced MMIO zones if kvm_io_bus_unregister_dev() fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus, unregister_dev() destroys all devices _except_ the target device. But, it doesn't tell the caller that it obliterated the bus and invoked the destructor for all devices that were on the bus. In the coalesced MMIO case, this can result in a deleted list entry dereference due to attempting to continue iterating on coalesced_zones after future entries (in the walk) have been deleted.
Opportunistically add curly braces to the for-loop, which encompasses many lines but sneaks by without braces due to the guts being a single if statement.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade perfUpgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-develUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-tools-develUpgrade kernel-headersUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade bpftoolUpgrade python-perfUpgrade kernel-debuginfo-common-aarch64 | Aug 2, 2024 | Feb 29, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 29, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade bpftoolUpgrade kernel-develUpgrade kernel-headersUpgrade kernelUpgrade python3-perfUpgrade perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade python-perf | Jul 23, 2024 | Feb 29, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 29, 2024 |
| Suse | — | Upgrade kernel-source-azureUpgrade kernel-obs-buildUpgrade kernel-64kbUpgrade kernel-azure-baseUpgrade kernel-preempt-develUpgrade reiserfs-kmp-defaultUpgrade kernel-zfcpdumpUpgrade kernel-sourceUpgrade kernel-default-develUpgrade kernel-azureUpgrade kernel-syms-azureUpgrade kernel-devel-azureUpgrade kernel-symsUpgrade kernel-docsUpgrade kernel-defaultUpgrade kernel-macrosUpgrade kernel-default-baseUpgrade kernel-azure-develUpgrade kernel-develUpgrade kernel-default-manUpgrade kernel-default-extraUpgrade kernel-64kb-develUpgrade kernel-preempt | Aug 9, 2024 | Feb 29, 2024 |
| Ubuntu | — | Upgrade linuxUpgrade linux-fipsUpgrade linux-raspiUpgrade linux-gcpUpgrade linux-bluefieldUpgrade linux-aws-5.4Upgrade linux-oracle-5.4Upgrade linux-hwe-5.4Upgrade linux-awsUpgrade linux-azure-5.4Upgrade linux-azureUpgrade linux-raspi-5.4Upgrade linux-gkeopUpgrade linux-gcp-5.4Upgrade linux-oracleUpgrade linux-kvm | Nov 19, 2024 | Feb 29, 2024 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub