Answer in brief
CVE-2024-0340 records a Medium severity (CVSS 4.4) vulnerability in Kernel: information disclosure in vhost/vhost.c:vhost_new_msg(). The current sources do not mark it as known exploited. The current feed maps kernel (generic), Red Hat/kernel (generic), Red Hat/kernel-rt (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 4.4. 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 kernel (generic), Red Hat/kernel (generic), Red Hat/kernel-rt (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| kernelgeneric | >=0 <6.4-rc6 | 6.4-rc6 |
| Red Hat/kernelgeneric | * | Not reported |
| Red Hat/kernel-rtgeneric | * | Not reported |
Published upstream
Jan 9, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 29, 2026
A vulnerability was found in vhost_new_msg in drivers/vhost/vhost.c in the Linux kernel, which does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This issue can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file.
Quoted source text, attributed separately from HOL analysis.