From: patchwork-bot+netdevbpf@kernel.org
To: KP Singh <kpsingh@kernel.org>
Cc: bpf@vger.kernel.org, linux-security-module@vger.kernel.org,
ast@kernel.org, daniel@iogearbox.net, dongxianrui1@gmail.com
Subject: Re: [PATCH v2] bpf: reject NULL data/sig in bpf_verify_pkcs7_signature
Date: Wed, 20 May 2026 03:30:05 +0000 [thread overview]
Message-ID: <177924780515.2971098.5196189504345300156.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260520024059.313468-1-kpsingh@kernel.org>
Hello:
This patch was applied to bpf/bpf.git (master)
by Kumar Kartikeya Dwivedi <memxor@gmail.com>:
On Wed, 20 May 2026 04:40:59 +0200 you wrote:
> __bpf_dynptr_data() can return NULL (FILE dynptrs, any non-contiguous
> backing). bpf_verify_pkcs7_signature() forwards the pointer to
> verify_pkcs7_signature() unchecked, causing a NULL deref in
> asn1_ber_decoder() reachable from a sleepable BPF LSM at lsm.s/bpf.
>
> NULL-check both pointers and reject with -EINVAL. Mirrors the guards
> already in kernel/bpf/crypto.c.
>
> [...]
Here is the summary with links:
- [v2] bpf: reject NULL data/sig in bpf_verify_pkcs7_signature
https://git.kernel.org/bpf/bpf/c/49b18315be4e
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:[~2026-05-20 3:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 2:40 [PATCH v2] bpf: reject NULL data/sig in bpf_verify_pkcs7_signature KP Singh
2026-05-20 3:23 ` Kumar Kartikeya Dwivedi
2026-05-20 3:30 ` patchwork-bot+netdevbpf [this message]
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