Vulnerability · Published Oct 21, 2024 · Assigned by Linux
CVE-2024-47727x86/tdx: Fix "in-kernel MMIO" check
High 7.8
In plain English
A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 83.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fix "in-kernel MMIO" check TDX only supports kernel-initiated MMIO operations. The handle_mmio() function checks if the #VE exception occurred in the kernel and rejects the operation if it did not. However, userspace can deceive the kernel into performing MMIO on its behalf. For example, if userspace can point a syscall to an MMIO address, syscall does get_user() or put_user() on it, triggering MMIO #VE. The kernel will treat the #VE as in-kernel MMIO. Ensure that the target MMIO address is within the kernel before decoding instruction.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | kernel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug-devel-matched | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-debug-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-devel-matched | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-64k-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-abi-stablelists | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-cross-headers | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-devel-matched | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-debug-uki-virt | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-devel-matched | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-doc | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-headers | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-debug | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-debug-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-debug-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-debug-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-64k-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-debug | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-debug-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-debug-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-debug-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-debug-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-debug-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-rt-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-tools | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-tools-libs | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-tools-libs-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-uki-virt | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-uki-virt-addons | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump-devel | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump-devel-matched | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump-modules | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump-modules-core | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | kernel-zfcpdump-modules-extra | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | libperf | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | perf | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | python3-perf | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | rtla | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| AlmaLinux:9 | rv | 5.14.0-611.5.1.el9_7 | ALSA-2025:20518 |
| Debian:12 | linux | 6.1.115-1 | DEBIAN-CVE-2024-47727 |
| Debian:13 | linux | 6.11.2-1 | DEBIAN-CVE-2024-47727 |
| Debian:14 | linux | 6.11.2-1 | DEBIAN-CVE-2024-47727 |
| Rocky Linux:9 | kernel | 0:5.14.0-611.5.1.el9_7 | RLSA-2025:20518 |
| Ubuntu:24.04:LTS | linux | 6.8.0-54.56 | USN-7301-1 |
| Ubuntu:24.04:LTS | linux | 6.8.0-54.56 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1023.25 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-aws | 6.8.0-1023.25 | USN-7311-1 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-aws-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1023.25~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-aws-6.8 | 6.8.0-1023.25~22.04.1 | USN-7311-1 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1025.30 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-azure | 6.8.0-1025.30 | USN-7384-1 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-azure-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1025.30~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-azure-6.8 | 6.8.0-1025.30~22.04.1 | USN-7384-2 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1024.26 | USN-7304-1 |
| Ubuntu:24.04:LTS | linux-gcp | 6.8.0-1024.26 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-gcp-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1024.26~22.04.1 | USN-7303-3 |
| Ubuntu:22.04:LTS | linux-gcp-6.8 | 6.8.0-1024.26~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1019.23 | USN-7304-1 |
| Ubuntu:24.04:LTS | linux-gke | 6.8.0-1019.23 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1006.8 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-gkeop | 6.8.0-1006.8 | USN-7304-1 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-57.59~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-hwe-6.8 | 6.8.0-57.59~22.04.1 | USN-7403-1 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1022.22 | USN-7385-1 |
| Ubuntu:24.04:LTS | linux-ibm | 6.8.0-1022.22 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-54.56.1 | USN-7301-1 |
| Ubuntu:24.04:LTS | linux-lowlatency | 6.8.0-54.56.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-54.56.1~22.04.1 | USN-7301-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 | 6.8.0-54.56.1~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1022.25 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-nvidia | 6.8.0-1022.25 | USN-7303-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1022.25~22.04.2 | USN-7303-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 | 6.8.0-1022.25~22.04.2 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1022.25.2 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency | 6.8.0-1022.25.2 | USN-7303-1 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-oem-6.11 | 6.11.0-1015.15 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-oem-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | 6.8.0-1024.24 | USN-7386-1 |
| Ubuntu:24.04:LTS | linux-oem-6.8 | 6.8.0-1024.24 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1020.21 | USN-7303-2 |
| Ubuntu:24.04:LTS | linux-oracle | 6.8.0-1020.21 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1020.21~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-oracle-6.8 | 6.8.0-1020.21~22.04.1 | USN-7303-2 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1019.23 | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-raspi | 6.8.0-1019.23 | USN-7303-3 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:24.04:LTS | linux-riscv | 6.8.0-53.55.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-riscv-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-riscv-6.8 | 6.8.0-53.55.1~22.04.1 | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-starfive-6.2 | no fix listed | UBUNTU-CVE-2024-47727 |
| Ubuntu:22.04:LTS | linux-starfive-6.5 | no fix listed | UBUNTU-CVE-2024-47727 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 31d58c4e557d46fa7f8557714250fb6f89c941ae – before 25703a3c980e21548774eea8c8a87a75c5c8f58c31d58c4e557d46fa7f8557714250fb6f89c941ae – before 4c0c5dcb5471de5fc8f0a1c4980e5815339e1cee31d58c4e557d46fa7f8557714250fb6f89c941ae – before 18ecd5b74682839e7cdafb7cd1ec106df7baa18c31d58c4e557d46fa7f8557714250fb6f89c941ae – before bca2e29f7e26ce7c3522f8b324c0bd85612f68e331d58c4e557d46fa7f8557714250fb6f89c941ae – before d4fc4d01471528da8a9797a065982e05090e1d81 |
| Linux | Linux | 5.19 |
References
- https://git.kernel.org/stable/c/25703a3c980e21548774eea8c8a87a75c5c8f58c
- https://git.kernel.org/stable/c/4c0c5dcb5471de5fc8f0a1c4980e5815339e1cee
- https://git.kernel.org/stable/c/18ecd5b74682839e7cdafb7cd1ec106df7baa18c
- https://git.kernel.org/stable/c/bca2e29f7e26ce7c3522f8b324c0bd85612f68e3
- https://git.kernel.org/stable/c/d4fc4d01471528da8a9797a065982e05090e1d81
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html