CVE-2026-45971
N/A
N/A
Summary
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).
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 349271568303695f0ac3563af153d2b4542f6986 < 5835a077c6f5c565d525eaca9fac01572b97a9b9 | affected |
| Linux | Linux | 349271568303695f0ac3563af153d2b4542f6986 < eb8166c79097996396468a341de258a798789d36 | affected |
| Linux | Linux | 349271568303695f0ac3563af153d2b4542f6986 < ea1535e28bb3773fc0b3cbd1f3842b808016990c | affected |
| Linux | Linux | 6.18 | affected |
| Linux | Linux | 0 < 6.18 | unaffected |
| Linux | Linux | 6.18.14 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.4 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/5835a077c6f5c565d525eaca9fac01572b97a9b9
- https://git.kernel.org/stable/c/eb8166c79097996396468a341de258a798789d36
- https://git.kernel.org/stable/c/ea1535e28bb3773fc0b3cbd1f3842b808016990c
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