Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H N H 7.1 .0024 16.1 —
AFFECTED
Product Versions Fixed
Linux e4e517b4be019787ada4cbbce2f04570c21b0cbd – —
Linux 3.2 – 5.10.229
TIMELINE
Oct 21 Reserved by Linux
Nov 5 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-50115 (Linux). CVSS 8.4 → 7.1 (NVD).
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| October 21, 2024 | Reserved | Reserved by Linux |
| November 5, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-50115 (Linux). CVSS 8.4 → 7.1 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | e4e517b4be019787ada4cbbce2f04570c21b0cbd | — |
| Linux | Linux | — | 3.2 | 5.10.229 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-50115 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.