From: Yonghong Song <yonghong.song@linux.dev>
To: bot+bpf-ci@kernel.org, bpf@vger.kernel.org
Cc: ast@kernel.org, andrii@kernel.org, daniel@iogearbox.net,
jose.marchesi@oracle.com, kernel-team@fb.com,
martin.lau@kernel.org, eddyz87@gmail.com, clm@meta.com,
ihor.solodrai@linux.dev
Subject: Re: [PATCH bpf-next v5 09/16] bpf: Reject stack arguments in non-JITed programs
Date: Sat, 18 Apr 2026 10:17:14 -0700 [thread overview]
Message-ID: <a2ca772c-4e48-46d6-9930-aecd9149018b@linux.dev> (raw)
In-Reply-To: <9b0ca90ef418abe68516e5570b953bbbee79f418c1550255784baf8422e9e3c0@mail.kernel.org>
On 4/16/26 9:30 PM, bot+bpf-ci@kernel.org wrote:
> commit 6f3447bea13f86a674e917f5f8ef4474cdd3b0bc
> Author: Yonghong Song <yonghong.song@linux.dev>
>
> bpf: Reject stack arguments in non-JITed programs
>
> The interpreter does not understand the bpf register r11 (BPF_REG_PARAMS)
> used for stack argument addressing. So reject interpreter usage if stack
> arguments are used either in the main program or any subprogram.
>
> This commit fixes a bug but lacks a Fixes: tag.
>
> Suggested: Fixes: 21229535935384b01e3cef3c117233b23b2f3902 ("bpf: Support stack arguments for bpf functions")
I will merge this patch and previous patch ("bpf: Support stack arguments for bpf functions")
to avoid this issue.
>
>
> ---
> AI reviewed your patch. Please fix the bug or email reply why it's not a bug.
> See: https://github.com/kernel-patches/vmtest/blob/master/ci/claude/README.md
>
> CI run summary: https://github.com/kernel-patches/bpf/actions/runs/24546989054
next prev parent reply other threads:[~2026-04-18 17:17 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-17 3:46 [PATCH bpf-next v5 00/16] bpf: Support stack arguments for BPF functions and kfuncs Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 01/16] bpf: Remove unused parameter from check_map_kptr_access() Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 02/16] bpf: Refactor to avoid redundant calculation of bpf_reg_state Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 03/16] bpf: Refactor to handle memory and size together Yonghong Song
2026-04-17 4:49 ` sashiko-bot
2026-04-18 16:40 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 16:47 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 04/16] bpf: Prepare verifier logs for upcoming kfunc stack arguments Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 05/16] bpf: Introduce bpf register BPF_REG_PARAMS Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 06/16] bpf: Limit the scope of BPF_REG_PARAMS usage Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 16:48 ` Yonghong Song
2026-04-17 4:50 ` sashiko-bot
2026-04-18 16:50 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-18 16:54 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 07/16] bpf: Reuse MAX_BPF_FUNC_ARGS for maximum number of arguments Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 17:00 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 17:03 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 08/16] bpf: Support stack arguments for bpf functions Yonghong Song
2026-04-17 4:35 ` sashiko-bot
2026-04-18 17:10 ` Yonghong Song
2026-04-17 4:43 ` bot+bpf-ci
2026-04-18 17:11 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-17 3:47 ` [PATCH bpf-next v5 09/16] bpf: Reject stack arguments in non-JITed programs Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 17:17 ` Yonghong Song [this message]
2026-04-18 0:52 ` bot+bpf-ci
2026-04-17 3:47 ` [PATCH bpf-next v5 10/16] bpf: Reject stack arguments if tail call reachable Yonghong Song
2026-04-17 4:08 ` sashiko-bot
2026-04-18 17:18 ` Yonghong Song
2026-04-18 17:37 ` Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-18 1:04 ` bot+bpf-ci
2026-04-18 17:24 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 11/16] bpf: Support stack arguments for kfunc calls Yonghong Song
2026-04-17 4:40 ` sashiko-bot
2026-04-18 17:46 ` Yonghong Song
2026-04-17 4:43 ` bot+bpf-ci
2026-04-18 17:57 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-18 18:04 ` Yonghong Song
2026-04-17 3:47 ` [PATCH bpf-next v5 12/16] bpf: Enable stack argument support for x86_64 Yonghong Song
2026-04-17 4:30 ` bot+bpf-ci
2026-04-17 5:03 ` sashiko-bot
2026-04-18 18:07 ` Yonghong Song
2026-04-18 1:04 ` bot+bpf-ci
2026-04-17 3:48 ` [PATCH bpf-next v5 13/16] bpf,x86: Implement JIT support for stack arguments Yonghong Song
2026-04-17 4:44 ` sashiko-bot
2026-04-18 16:43 ` Puranjay Mohan
2026-04-18 18:15 ` Yonghong Song
2026-04-18 1:20 ` bot+bpf-ci
2026-04-18 18:23 ` Yonghong Song
2026-04-17 3:48 ` [PATCH bpf-next v5 14/16] selftests/bpf: Add tests for BPF function " Yonghong Song
2026-04-17 4:20 ` sashiko-bot
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 18:26 ` Yonghong Song
2026-04-17 3:48 ` [PATCH bpf-next v5 15/16] selftests/bpf: Add negative test for greater-than-8-byte kfunc stack argument Yonghong Song
2026-04-17 4:28 ` sashiko-bot
2026-04-18 18:29 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-17 3:48 ` [PATCH bpf-next v5 16/16] selftests/bpf: Add verifier tests for stack argument validation Yonghong Song
2026-04-17 4:38 ` sashiko-bot
2026-04-18 18:36 ` Yonghong Song
2026-04-18 0:52 ` bot+bpf-ci
2026-04-18 16:39 ` [PATCH bpf-next v5 00/16] bpf: Support stack arguments for BPF functions and kfuncs Puranjay Mohan
2026-04-18 18:47 ` Alexei Starovoitov
2026-04-18 18:54 ` Yonghong Song
2026-04-18 17:06 ` Puranjay Mohan
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