From: "Alexei Starovoitov" <alexei.starovoitov@gmail.com>
To: "Christian Brauner" <brauner@kernel.org>,
"Amir Goldstein" <amir73il@gmail.com>,
<linux-fsdevel@vger.kernel.org>
Cc: "Chris Down" <chris@chrisdown.name>,
"Miklos Szeredi" <mszeredi@redhat.com>,
<linux-unionfs@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<bpf@vger.kernel.org>, <linux-trace-kernel@vger.kernel.org>,
<linux-integrity@vger.kernel.org>,
<linux-security-module@vger.kernel.org>, <linux-mm@kvack.org>,
<stable@vger.kernel.org>, "Sashiko" <sashiko-bot@kernel.org>
Subject: Re: [PATCH 00/13] fs: let d_real() fail
Date: Sun, 15 Nov 2026 18:28:14 +0000 [thread overview]
Message-ID: <DMVZWOMFDBX6.3HVETC9L8RUEU@gmail.com> (raw)
In-Reply-To: <20261115-work-ovl-d_real-v1-0-ca155efbcb2e@kernel.org>
On Sun, Nov 15, 2026 at 06:01 AM Christian Brauner <brauner@kernel.org> wrote:
> As Amir pointed out the correct fix is to teach the callers to deal with
> an error. So d_real() may now fail for D_REAL_DATA and all callers
> handle it: uprobes fail when they're created, IMA treats it like failing
> to hash the file, IPE denies and the bpf kfunc returns NULL. Then
> d_real_inode() goes away so nobody can ignore the error again. The first
> patch only drops the WARN.
For bpf bits:
Acked-by: Alexei Starovoitov <ast@kernel.org>
prev parent reply other threads:[~2026-11-15 18:28 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-15 14:01 [PATCH 00/13] fs: let d_real() fail Christian Brauner
2026-11-15 14:01 ` [PATCH 01/13] ovl: don't warn when the lazy lowerdata lookup fails in ovl_d_real() Christian Brauner
2026-11-15 14:54 ` Amir Goldstein
2026-11-15 14:01 ` [PATCH 02/13] fs: add d_real_data_inode() and d_real_metadata_inode() Christian Brauner
2026-11-15 15:00 ` Amir Goldstein
2026-11-15 20:39 ` Christian Brauner
2026-11-15 14:01 ` [PATCH 03/13] tracing/uprobes: handle errors from resolving the real inode Christian Brauner
2026-11-15 14:01 ` [PATCH 04/13] bpf: handle errors from resolving the real inode in uprobe_multi Christian Brauner
2026-11-15 14:01 ` [PATCH 05/13] selftests/bpf: handle d_real_data_inode() errors in bpf_testmod Christian Brauner
2026-11-15 14:01 ` [PATCH 06/13] ima: handle errors from resolving the real inode Christian Brauner
2026-11-15 14:01 ` [PATCH 07/13] ima,evm: use d_real_metadata_inode() Christian Brauner
2026-11-15 14:01 ` [PATCH 08/13] ipe: handle errors from resolving the real inode Christian Brauner
2026-11-15 14:37 ` bot+bpf-ci
2026-11-15 14:01 ` [PATCH 09/13] bpf: return NULL from bpf_real_data_inode() on errors Christian Brauner
2026-11-15 14:01 ` [PATCH 10/13] ovl: return the error from the lazy lowerdata lookup in ovl_d_real() Christian Brauner
2026-11-15 14:47 ` Amir Goldstein
2026-11-15 14:01 ` [PATCH 11/13] fs: remove d_real_inode() Christian Brauner
2026-11-15 14:48 ` Amir Goldstein
2026-11-15 14:01 ` [PATCH 12/13] selftests/ftrace: add uprobe tests on overlayfs Christian Brauner
2026-11-15 14:18 ` sashiko-bot
2026-11-15 14:01 ` [PATCH 13/13] selftests/bpf: add uprobe_multi test on overlayfs without data Christian Brauner
2026-11-15 18:28 ` Alexei Starovoitov [this message]
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