Re: [PATCH bpf v2 1/2] bpf: support PTR_TO_MEM{,_OR_NULL} register spilling
From: KP Singh <kpsingh@kernel.org>
Date: 2021-01-14 02:05:58
Also in:
bpf, linux-kselftest, lkml
On Wed, Jan 13, 2021 at 6:38 AM Gilad Reti [off-list ref] wrote:
Add support for pointer to mem register spilling, to allow the verifier
to track pointers to valid memory addresses. Such pointers are returned
for example by a successful call of the bpf_ringbuf_reserve helper.
The patch was partially contributed by CyberArk Software, Inc.
Fixes: 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it")
Suggested-by: Yonghong Song <redacted>
Signed-off-by: Gilad Reti <redacted>Acked-by: KP Singh <kpsingh@kernel.org>