Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.1, < 5.4.290 |
Related Weaknesses (CWE)
References
- 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/9377cdc118cf327248f1a9dde7b87de067681dc9
- 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/d19a8650fd3d7aed8d1af1d9a77f979a8430eba1Patch
- https://git.kernel.org/stable/c/ed81d82bb6e9df3a137f2c343ed689e6c68268ef
- https://git.kernel.org/stable/c/f21636f24b6786c8b13f1af4319fa75ffcf17f38Patch
- https://git.kernel.org/stable/c/f65ce06387f8c1fb54bd59e18a8428248ec68eaf
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
FAQ
What is CVE-2025-21687?
CVE-2025-21687 is a vulnerability with a CVSS score of 7.8 (HIGH). 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...
How severe is CVE-2025-21687?
CVE-2025-21687 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21687?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.