CVE-2025-21687
HIGH severity · CVSS 7.8 · Out-of-bounds read
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: vfio/platform: check the bounds of read/write syscalls count and offset are passed from user space and not checked, only offset is capped to 40 bits, which can be used to read/write out of bounds of the device.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1485932496a1b025235af8aa1e21988d6b7ccd54 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1485932496a1b025235af8aa1e21988d6b7ccd54Patch
- https://git.kernel.org/stable/c/665cfd1083866f87301bbd232cb8ba48dcf4accePatch
- https://git.kernel.org/stable/c/6bcb8a5b70b80143db9bf12dfa7d53636f824d53Patch
- https://git.kernel.org/stable/c/92340e6c5122d823ad064984ef7513eba9204048Patch
- https://git.kernel.org/stable/c/a20fcaa230f7472456d12cf761ed13938e320ac3Patch
- https://git.kernel.org/stable/c/c981c32c38af80737a2fedc16e270546d139ccddPatch
- https://git.kernel.org/stable/c/ce9ff21ea89d191e477a02ad7eabf4f996b80a69Patch
- https://git.kernel.org/stable/c/9377cdc118cf327248f1a9dde7b87de067681dc9