Answer in brief
CVE-2024-50115 records a High severity (CVSS 8.4) vulnerability in KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e4e517b4be019787ada4cbbce2f04570c21b0cbd <76ce386feb14ec9a460784fcd495d8432acce7a5 || >=e4e517b4be019787ada4cbbce2f04570c21b0cbd <58cb697d80e669c56197f703e188867c8c54c494 || >=e4e517b4be019787ada4cbbce2f04570c21b0cbd <6876793907cbe19d42e9edc8c3315a21e06c32ae || >=e4e517b4be019787ada4cbbce2f04570c21b0cbd <2c4adc9b192a0815fe58a62bc0709449416cc884 || >=e4e517b4be019787ada4cbbce2f04570c21b0cbd <426682afec71ea3f889b972d038238807b9443e4 || >=e4e517b4be019787ada4cbbce2f04570c21b0cbd <f559b2e9c5c5308850544ab59396b7d53cfc67bd | 76ce386feb14ec9a460784fcd495d8432acce7a5, 58cb697d80e669c56197f703e188867c8c54c494, 6876793907cbe19d42e9edc8c3315a21e06c32ae, 2c4adc9b192a0815fe58a62bc0709449416cc884, 426682afec71ea3f889b972d038238807b9443e4, f559b2e9c5c5308850544ab59396b7d53cfc67bd |
| Linux/Linuxgeneric | 3.2 | Not reported |
Published upstream
Nov 5, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory Ignore nCR3[4:0] when loading PDPTEs from memory for nested SVM, as bits 4:0 of CR3 are ignored when PAE paging is used, and thus VMRUN doesn't enforce 32-byte alignment of nCR3. In the absolute worst case scenario, failure to ignore bits 4:0 can result in an out-of-bounds read, e.g. if the target page is at the end of a memslot, and the VMM isn't using guard pages. Per the APM: The CR3 register points to the base address of the page-directory-pointer table. The page-directory-pointer table is aligned on a 32-byte boundary, with the low 5 address bits 4:0 assumed to be 0. And the SDM's much more explicit: 4:0 Ignored Note, KVM gets this right when loading PDPTRs, it's only the nSVM flow that is broken.
Quoted source text, attributed separately from HOL analysis.