CVE-2025-68743

Source
https://cve.org/CVERecord?id=CVE-2025-68743
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68743.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-68743
Downstream
Related
Published
2025-12-24T12:09:40.148Z
Modified
2026-03-08T15:58:54.715378Z
Summary
mshv: Fix create memory region overlap check
Details

In the Linux kernel, the following vulnerability has been resolved:

mshv: Fix create memory region overlap check

The current check is incorrect; it only checks if the beginning or end of a region is within an existing region. This doesn't account for userspace specifying a region that begins before and ends after an existing region.

Change the logic to a range intersection check against gfns and uaddrs for each region.

Remove mshvpartitionregionbyuaddr() as it is no longer used.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68743.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
621191d709b14882270dfd8ea5d7d6cdfebe2c35
Fixed
2183924dd834e0703f87e17c17e689bcbf55d69d
Fixed
ab3e7a78d83a61d335458cfe2e4d17eba69ae73d
Fixed
ba9eb9b86d232854e983203dc2fb1ba18e316681

Affected versions

v6.*
v6.14
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.15
v6.15-rc1
v6.15-rc2
v6.15-rc3
v6.15-rc4
v6.15-rc5
v6.15-rc6
v6.15-rc7
v6.16
v6.16-rc1
v6.16-rc2
v6.16-rc3
v6.16-rc4
v6.16-rc5
v6.16-rc6
v6.16-rc7
v6.17
v6.17-rc1
v6.17-rc2
v6.17-rc3
v6.17-rc4
v6.17-rc5
v6.17-rc6
v6.17-rc7
v6.17.1
v6.17.10
v6.17.11
v6.17.12
v6.17.2
v6.17.3
v6.17.4
v6.17.5
v6.17.6
v6.17.7
v6.17.8
v6.17.9
v6.18
v6.18-rc1
v6.18-rc2
v6.18-rc3
v6.18-rc4
v6.18-rc5
v6.18-rc6
v6.18-rc7
v6.18.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68743.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.15.0
Fixed
6.17.13
Type
ECOSYSTEM
Events
Introduced
6.18.0
Fixed
6.18.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-68743.json"