From: patchwork-bot+netdevbpf@kernel.org
To: Yonghong Song <yonghong.song@linux.dev>
Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org,
daniel@iogearbox.net, eddyz87@gmail.com, kernel-team@fb.com
Subject: Re: [PATCH bpf-next v5 0/3] bpf: Fix trampoline handling of 128-bit values
Date: Sat, 01 Aug 2026 01:10:12 +0000 [thread overview]
Message-ID: <178554661214.974239.3202155911510305468.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260729050154.2585468-1-yonghong.song@linux.dev>
Hello:
This series was applied to bpf/bpf-next.git (master)
by Kumar Kartikeya Dwivedi <memxor@gmail.com>:
On Tue, 28 Jul 2026 22:01:54 -0700 you wrote:
> The BPF trampoline preserves only 8 bytes of a target function's return
> value (R0), and its register save area under-allocates space for 128-bit
> arguments for x86_64. These two problems lead to memory corruption or
> incorrect values observed by BPF programs and the real caller.
>
> This series fixes both issues and adds two selftests, otherwise, each of
> them will fail if without the corresponding fix.
>
> [...]
Here is the summary with links:
- [bpf-next,v5,1/3] bpf: Reject >8 byte return values on return-reading trampoline paths
https://git.kernel.org/bpf/bpf-next/c/c48796aa6c39
- [bpf-next,v5,2/3] bpf, x86: Fix trampoline stack size for 128-bit arguments
https://git.kernel.org/bpf/bpf-next/c/814cba835ef6
- [bpf-next,v5,3/3] selftests/bpf: Add tests for >8 byte return value and 128-bit arguments
https://git.kernel.org/bpf/bpf-next/c/13cc6b788b1a
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
prev parent reply other threads:[~2026-08-01 1:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-29 5:01 [PATCH bpf-next v5 0/3] bpf: Fix trampoline handling of 128-bit values Yonghong Song
2026-07-29 5:01 ` [PATCH bpf-next v5 1/3] bpf: Reject >8 byte return values on return-reading trampoline paths Yonghong Song
2026-07-29 5:02 ` [PATCH bpf-next v5 2/3] bpf, x86: Fix trampoline stack size for 128-bit arguments Yonghong Song
2026-07-29 6:20 ` bot+bpf-ci
2026-08-01 0:57 ` Yonghong Song
2026-07-29 5:02 ` [PATCH bpf-next v5 3/3] selftests/bpf: Add tests for >8 byte return value and " Yonghong Song
2026-08-01 1:10 ` patchwork-bot+netdevbpf [this message]
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