CVE-2024-47727
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
x86/tdx: Fix "in-kernel MMIO" check
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 31d58c4e557d46fa7f8557714250fb6f89c941ae | affected | git | 25703a3c980e21548774eea8c8a87a75c5c8f58c | Unavailable | None listed |
| 31d58c4e557d46fa7f8557714250fb6f89c941ae | affected | git | 4c0c5dcb5471de5fc8f0a1c4980e5815339e1cee | Unavailable | None listed |
| 31d58c4e557d46fa7f8557714250fb6f89c941ae | affected | git | 18ecd5b74682839e7cdafb7cd1ec106df7baa18c | Unavailable | None listed |
| 31d58c4e557d46fa7f8557714250fb6f89c941ae | affected | git | bca2e29f7e26ce7c3522f8b324c0bd85612f68e3 | Unavailable | None listed |
| 31d58c4e557d46fa7f8557714250fb6f89c941ae | affected | git | d4fc4d01471528da8a9797a065982e05090e1d81 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.19 | Unavailable | None listed |
| 6.1.113 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.54 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.13 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11.2 | unaffected | semver | Unavailable | 6.11.* | None listed |
| 6.12 | unaffected | original_commit_for_fix | Unavailable | * | None listed |