Re: [PATCH 35/39] convert bpf_token_create()

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To: Andrii Nakryiko <andrii.nakryiko@xxxxxxxxx>
Subject: Re: [PATCH 35/39] convert bpf_token_create()
From: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Sat, 10 Aug 2024 04:46:44 +0100
Cc: viro@xxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, amir73il@xxxxxxxxx, bpf@xxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, cgroups@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx
In-reply-to: <CAEf4BzasSXFx5edPknxVnmk+o6oAyOU0h_Tg_yHVaJcaJfpPOQ@mail.gmail.com>
References: <20240730050927.GC5334@ZenIV> <20240730051625.14349-1-viro@kernel.org> <20240730051625.14349-35-viro@kernel.org> <CAEf4BzasSXFx5edPknxVnmk+o6oAyOU0h_Tg_yHVaJcaJfpPOQ@mail.gmail.com>

On Tue, Aug 06, 2024 at 03:42:56PM -0700, Andrii Nakryiko wrote:

> By constify you mean something like below?

Yep.  Should go through LSM folks, probably, and once it's in
those path_get() and path_put() around the call can go to hell,
along with 'path' itself (we can use file->f_path instead).

Follow-Ups:
- Re: [PATCH 35/39] convert bpf_token_create()
  - From: Andrii Nakryiko

References:
- [PATCHSET][RFC] struct fd and memory safety
  - From: Al Viro
- [PATCH 01/39] memcg_write_event_control(): fix a user-triggerable oops
  - From: viro
- [PATCH 35/39] convert bpf_token_create()
  - From: viro
- Re: [PATCH 35/39] convert bpf_token_create()
  - From: Andrii Nakryiko

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