CVE-2025-39962
- Source
- https://cve.org/CVERecord?id=CVE-2025-39962
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39962.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-39962
- Downstream
- Published
- 2025-10-09T12:13:22.684Z
- Modified
- 2026-04-02T12:48:13.780018Z
- Summary
- rxrpc: Fix untrusted unsigned subtract
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix untrusted unsigned subtract
Fix the following Smatch static checker warning:
net/rxrpc/rxgkapp.c:65 rxgkyfsdecodeticket() warn: untrusted unsigned subtract. 'ticket_len - 10 * 4'
by prechecking the length of what we're trying to extract in two places in the token and decoding for a response packet.
Also use sizeof() on the struct we're extracting rather specifying the size numerically to be consistent with the other related statements.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39962.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/2429a197648178cd4dc930a9d87c13c547460564
- https://git.kernel.org/stable/c/71571e187106631a8127f2dde780f35caa358d33
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39962.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39962
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git