linux-kernel - Re: [PATCH bpf v3 0/3] Fix the read of vsyscall page through bpf

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Date: Fri, 16 Feb 2024 03:30:28 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Hou Tao <houtao@...weicloud.com>
Cc: x86@...nel.org, bpf@...r.kernel.org, dave.hansen@...ux.intel.com,
 luto@...nel.org, peterz@...radead.org, tglx@...utronix.de, mingo@...hat.com,
 bp@...en8.de, hpa@...or.com, linux-kernel@...r.kernel.org,
 xrivendell7@...il.com, jannh@...gle.com, sohil.mehta@...el.com,
 yonghong.song@...ux.dev, houtao1@...wei.com
Subject: Re: [PATCH bpf v3 0/3] Fix the read of vsyscall page through bpf

Hello:

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

On Fri,  2 Feb 2024 18:39:32 +0800 you wrote:
> From: Hou Tao <houtao1@...wei.com>
> 
> Hi,
> 
> As reported by syzboot [1] and [2], when trying to read vsyscall page
> by using bpf_probe_read_kernel() or bpf_probe_read(), oops may happen.
> 
> [...]

Here is the summary with links:
  - [bpf,v3,1/3] x86/mm: Move is_vsyscall_vaddr() into asm/vsyscall.h
    https://git.kernel.org/bpf/bpf/c/ee0e39a63b78
  - [bpf,v3,2/3] x86/mm: Disallow vsyscall page read for copy_from_kernel_nofault()
    https://git.kernel.org/bpf/bpf/c/32019c659ecf
  - [bpf,v3,3/3] selftest/bpf: Test the read of vsyscall page under x86-64
    https://git.kernel.org/bpf/bpf/c/be66d79189ec

You are awesome, thank you!
-- 
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