CVE-2025-21734

misc: fastrpc: Fix copy buffer page size

Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix copy buffer page size For non-registered buffer, fastrpc driver copies the buffer and pass it to the remote subsystem. There is a problem with current implementation of page size calculation which is not considering the offset in the calculation. This might lead to passing of improper and out-of-bounds page size which could result in memory issue. Calculate page start and page end using the offset adjusted address instead of absolute address.

N/A
CVSS
Severity:
EPSS 0.04%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-21734?
CVE-2025-21734 has not yet been assigned a CVSS score.
How to fix CVE-2025-21734?
To fix CVE-2025-21734, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21734 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21734 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21734?
CVE-2025-21734 affects Linux Linux, Linux Linux.
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