CVE-2026-45971
- Source
- https://cve.org/CVERecord?id=CVE-2026-45971
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45971.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45971
- Downstream
- Published
- 2026-05-27T12:18:30Z
- Modified
- 2026-08-12T03:51:26Z
- Summary
- bpf: Limit bpf program signature size
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Limit bpf program signature size
Practical BPF signatures are significantly smaller than KMALLOC_MAX_CACHE_SIZE
Allowing larger sizes opens the door for abuse by passing excessive size values and forcing the kernel into expensive allocation paths (via kmalloc_large or vmalloc).
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45971.json" }- References
-
- https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9
- https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c
- https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45971.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-45971
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git