Files
linux/kernel
KP Singh ea1535e28b 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).

Fixes: 3492715683 ("bpf: Implement signature verification for BPF programs")
Reported-by: Chris Mason <clm@meta.com>
Signed-off-by: KP Singh <kpsingh@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20260205063807.690823-1-kpsingh@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2026-02-05 08:31:42 -08:00
..
2026-02-05 08:31:42 -08:00
2025-11-09 21:19:44 -08:00
2026-01-11 06:09:11 -10:00
2026-01-11 06:09:11 -10:00
2025-11-11 10:01:31 +01:00
2025-11-14 18:15:49 +08:00
2025-11-04 08:30:50 +01:00
2025-10-29 10:29:54 +01:00
2024-11-03 01:28:06 -05:00