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From: patchwork-bot+netdevbpf@kernel.org
To: Anastasios Papagiannis <tasos.papagiannnis@gmail.com>
Cc: bpf@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	david@kernel.org, akpm@linux-foundation.org, andrii@kernel.org,
	ast@kernel.org, brauner@kernel.org, daniel@iogearbox.net,
	eddyz87@gmail.com, kpsingh@kernel.org, ljs@kernel.org,
	matt@bobrowski.net, memxor@gmail.com, song@kernel.org,
	sun.jian.kdev@gmail.com, utilityemal77@gmail.com,
	viro@zeniv.linux.org.uk
Subject: Re: [PATCH bpf-next v9 0/5] bpf: Add user memory access kfuncs for mm_struct
Date: Fri, 18 Sep 2026 15:40:07 +0000	[thread overview]
Message-ID: <178974600740.1015302.4891269233605977297.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260918131757.42802-1-tasos.papagiannnis@gmail.com>

Hello:

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

On Fri, 18 Sep 2026 16:17:52 +0300 you wrote:
> On MMU systems, during exec, argument and environment strings are copied
> into the new address space held by struct linux_binprm before that address
> space is installed on the task_struct. Existing BPF user memory helpers
> operate on the current address space or one associated with a task_struct.
> Because no task_struct refers to the new address space at this point,
> programs cannot access these strings from the bprm_check_security LSM
> hook.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v9,1/5] mm: Add copy_remote_mm_str()
    https://git.kernel.org/bpf/bpf-next/c/69d38c792c53
  - [bpf-next,v9,2/5] exec: Clear bprm->mm before dropping its reference
    https://git.kernel.org/bpf/bpf-next/c/adc7fb9955e2
  - [bpf-next,v9,3/5] bpf: Add user memory access kfuncs for mm_struct
    https://git.kernel.org/bpf/bpf-next/c/3f9d98dfed79
  - [bpf-next,v9,4/5] bpf: Mark linux_binprm->mm as trusted-or-null
    https://git.kernel.org/bpf/bpf-next/c/cca46f91737c
  - [bpf-next,v9,5/5] selftests/bpf: Test mm_struct user memory kfuncs with linux_binprm
    https://git.kernel.org/bpf/bpf-next/c/b5501fb38ff7

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2026-09-18 15:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-18 13:17 Anastasios Papagiannis
2026-09-18 13:17 ` [PATCH bpf-next v9 1/5] mm: Add copy_remote_mm_str() Anastasios Papagiannis
2026-09-18 14:36   ` bot+bpf-ci
2026-09-18 13:17 ` [PATCH bpf-next v9 2/5] exec: Clear bprm->mm before dropping its reference Anastasios Papagiannis
2026-09-18 13:17 ` [PATCH bpf-next v9 3/5] bpf: Add user memory access kfuncs for mm_struct Anastasios Papagiannis
2026-09-18 13:17 ` [PATCH bpf-next v9 4/5] bpf: Mark linux_binprm->mm as trusted-or-null Anastasios Papagiannis
2026-09-18 13:17 ` [PATCH bpf-next v9 5/5] selftests/bpf: Test mm_struct user memory kfuncs with linux_binprm Anastasios Papagiannis
2026-09-18 15:40 ` patchwork-bot+netdevbpf [this message]

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