Riskcovery

CVE-2025-21734

misc: fastrpc: Fix copy buffer page size

State
Published
Severity
7.8 High
Published
Feb 27, 2025
Updated
Aug 5, 2026
Reserved
Dec 29, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 02b45b47fbe84e23699bb6bdc74d4c2780e282b4 to before c56ba3ea8e3c9a69a992aad18f7a65e43e51d623Affected
  • 02b45b47fbe84e23699bb6bdc74d4c2780e282b4 to before c0464bad0e85fcd5d47e4297d1e410097c979e55Affected
  • 02b45b47fbe84e23699bb6bdc74d4c2780e282b4 to before 24a79c6bc8de763f7c50f4f84f8b0c183bc25a51Affected
  • 02b45b47fbe84e23699bb6bdc74d4c2780e282b4 to before c3f7161123fcbdc64e90119ccce292d8b66281c4Affected
  • 02b45b47fbe84e23699bb6bdc74d4c2780e282b4 to before e966eae72762ecfdbdb82627e2cda48845b9dd66Affected
LinuxLinux
  • 5.2Affected
  • before 5.2Not affected
  • 6.1.129 through 6.1.*Not affected
  • 6.6.78 through 6.6.*Not affected
  • 6.12.14 through 6.12.*Not affected
  • 6.13.3 through 6.13.*Not affected
  • 6.14 and laterNot affected

References

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