CVE-2025-21788
- Source
- https://cve.org/CVERecord?id=CVE-2025-21788
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21788.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-21788
- Downstream
- Related
- Published
- 2025-02-27T02:18:27Z
- Modified
- 2026-08-12T03:30:45Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- net: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: ti: am65-cpsw: fix memleak in certain XDP cases
If the XDP program doesn't result in XDP_PASS then we leak the memory allocated by am65_cpsw_build_skb().
It is pointless to allocate SKB memory before running the XDP program as we would be wasting CPU cycles for cases other than XDP_PASS. Move the SKB allocation after evaluating the XDP program result.
This fixes the memleak. A performance boost is seen for XDP_DROP test.
XDP_DROP test: Before: 460256 rx/s 0 err/s After: 784130 rx/s 0 err/s
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21788.json" }- References
-
- https://git.kernel.org/stable/c/1bba1d042107167164a0ae3a843fdf650ab005d7
- https://git.kernel.org/stable/c/5db843258de1e4e6b1ef1cbd1797923c9e3de548
- https://git.kernel.org/stable/c/dc11f049612b9d926aca2e55f8dc9d82850d0da3
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21788.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-21788
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git