From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Peter Zijlstra <peterz@infradead.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Kees Cook <keescook@chromium.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Greg Ungerer <gerg@linux-m68k.org>,
Mike Rapoport <rppt@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Kevin Brodsky <Kevin.Brodsky@arm.com>,
Michal Hocko <mhocko@suse.com>, Feng Tang <feng.tang@intel.com>,
Don Zickus <dzickus@redhat.com>,
x86@kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v1 2/3] binfmt: remove in-tree usage of MAP_EXECUTABLE
Date: Wed, 12 May 2021 15:12:26 +0200 [thread overview]
Message-ID: <49a8cb62-e26d-a351-937e-6fb62a6f4a2e@redhat.com> (raw)
In-Reply-To: <20210421093453.6904-3-david@redhat.com>
On 21.04.21 11:34, David Hildenbrand wrote:
> Ever since commit e9714acf8c43 ("mm: kill vma flag VM_EXECUTABLE and
> mm->num_exe_file_vmas"), VM_EXECUTABLE is gone and MAP_EXECUTABLE is
> essentially completely ignored. Let's remove all usage of
> MAP_EXECUTABLE.
>
> Signed-off-by: David Hildenbrand <david@redhat.com>
[...]
> +++ b/fs/binfmt_aout.c
> @@ -222,7 +222,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
>
> error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
> PROT_READ | PROT_EXEC,
> - MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
> + MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE;
As reported by kernel test robot, this line should end with a ","
> fd_offset);
>
> if (error != N_TXTADDR(ex))
> @@ -230,7 +230,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
>
> error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
> PROT_READ | PROT_WRITE | PROT_EXEC,
> - MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE,
> + MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE;
> fd_offset + ex.a_text);
dito
@Andrew, I think this resides your tree. Can you fix that up or shall I
resend the series, or only this individual patch?
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2021-05-12 13:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-21 9:34 [PATCH v1 0/3] perf/binfmt/mm: remove in-tree usage of MAP_EXECUTABLE David Hildenbrand
2021-04-21 9:34 ` [PATCH v1 1/3] perf: MAP_EXECUTABLE does not indicate VM_MAYEXEC David Hildenbrand
2021-04-21 9:34 ` [PATCH v1 2/3] binfmt: remove in-tree usage of MAP_EXECUTABLE David Hildenbrand
2021-05-12 13:12 ` David Hildenbrand [this message]
2021-04-21 9:34 ` [PATCH v1 3/3] mm: ignore MAP_EXECUTABLE in ksys_mmap_pgoff() David Hildenbrand
2021-04-21 19:03 ` [PATCH v1 0/3] perf/binfmt/mm: remove in-tree usage of MAP_EXECUTABLE Eric W. Biederman
2021-04-21 19:21 ` Kees Cook
2021-04-21 20:56 ` David Hildenbrand
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