CVE-2025-21734

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux02b45b47fbe84e23699bb6bdc74d4c2780e282b4 < c56ba3ea8e3c9a69a992aad18f7a65e43e51d623affected
LinuxLinux02b45b47fbe84e23699bb6bdc74d4c2780e282b4 < c0464bad0e85fcd5d47e4297d1e410097c979e55affected
LinuxLinux02b45b47fbe84e23699bb6bdc74d4c2780e282b4 < 24a79c6bc8de763f7c50f4f84f8b0c183bc25a51affected
LinuxLinux02b45b47fbe84e23699bb6bdc74d4c2780e282b4 < c3f7161123fcbdc64e90119ccce292d8b66281c4affected
LinuxLinux02b45b47fbe84e23699bb6bdc74d4c2780e282b4 < e966eae72762ecfdbdb82627e2cda48845b9dd66affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux6.1.129 <= 6.1.*unaffected
LinuxLinux6.6.78 <= 6.6.*unaffected
LinuxLinux6.12.14 <= 6.12.*unaffected
LinuxLinux6.13.3 <= 6.13.*unaffected
LinuxLinux6.14 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References