Re: [PATCH bpf-next v5 0/4] bpf: support to track BPF_JNE

From: patchwork-bot+netdevbpf
Date: Tue Dec 19 2023 - 20:34:06 EST


Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:

On Tue, 19 Dec 2023 21:47:56 +0800 you wrote:
> For now, the reg bounds is not handled for BPF_JNE case, which can cause
> the failure of following case:
>
> /* The type of "a" is u32 */
> if (a > 0 && a < 100) {
> /* the range of the register for a is [0, 99], not [1, 99],
> * and will cause the following error:
> *
> * invalid zero-sized read
> *
> * as a can be 0.
> */
> bpf_skb_store_bytes(skb, xx, xx, a, 0);
> }
>
> [...]

Here is the summary with links:
- [bpf-next,v5,1/4] bpf: make the verifier tracks the "not equal" for regs
https://git.kernel.org/bpf/bpf-next/c/d028f87517d6
- [bpf-next,v5,2/4] selftests/bpf: remove reduplicated s32 casting in "crafted_cases"
https://git.kernel.org/bpf/bpf-next/c/1de584832375
- [bpf-next,v5,3/4] selftests/bpf: activate the OP_NE logic in range_cond()
https://git.kernel.org/bpf/bpf-next/c/31d9cc96b1e3
- [bpf-next,v5,4/4] selftests/bpf: add testcase to verifier_bounds.c for BPF_JNE
https://git.kernel.org/bpf/bpf-next/c/463ea64eb008

You are awesome, thank you!
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