CVE-2025-21734
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedFeb 27, 2025
First seenFeb 27, 2025
How to fix
Update
- linux linux_kernel6.1.129, 6.6.78, 6.12.14, 6.13.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.2 ≤ v < 6.1.129, 6.2 ≤ v < 6.6.78, 6.7 ≤ v < 6.12.14, 6.13 ≤ v < 6.13.3 | 6.1.129, 6.6.78, 6.12.14, 6.13.3 |
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