CVE-2025-21734

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Source
https://cve.org/CVERecord?id=CVE-2025-21734
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21734.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21734
Downstream
Related
Published
2025-02-27T02:12:11.663Z
Modified
2026-03-20T12:41:08.935835Z
Summary
misc: fastrpc: Fix copy buffer page size
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21734.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
02b45b47fbe84e23699bb6bdc74d4c2780e282b4
Fixed
c56ba3ea8e3c9a69a992aad18f7a65e43e51d623
Fixed
c0464bad0e85fcd5d47e4297d1e410097c979e55
Fixed
24a79c6bc8de763f7c50f4f84f8b0c183bc25a51
Fixed
c3f7161123fcbdc64e90119ccce292d8b66281c4
Fixed
e966eae72762ecfdbdb82627e2cda48845b9dd66

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21734.json"