CVE-2026-45971
bpf: Limit bpf program signature size
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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).
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
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Affected Versions
Linux / Linux
349271568303695f0ac3563af153d2b4542f6986 < 5835a077c6f5c565d525eaca9fac01572b97a9b9 349271568303695f0ac3563af153d2b4542f6986 < eb8166c79097996396468a341de258a798789d36 349271568303695f0ac3563af153d2b4542f6986 < ea1535e28bb3773fc0b3cbd1f3842b808016990c
Linux / Linux
6.18