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Tue, 21 Jan 2025 06:32:49 -0500 (EST) Date: Tue, 21 Jan 2025 12:32:48 +0100 From: Greg KH To: Paul Kramme Cc: stable@vger.kernel.org, john.johansen@canonical.com Subject: Re: NULL pointer dereference in apparmor's profile_transition v6.12 Message-ID: <2025012142-resupply-stimulate-c3de@gregkh> References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Jan 21, 2025 at 11:55:21AM +0100, Paul Kramme wrote: > Hello, > > with v6.12 we encountered a kernel BUG (panic on our systems) that is > caused by a NULL pointer dereference inside the apparmor's > profile_transition code. I've contacted John Johansen as the > maintainer for the apparmor system, and he pointed me to 17d0d04f3c99 > as a fix for that issue. That commit has now landed in v6.13, would it > be possible to backport this to v6.12? Commit is > > 17d0d04f3c99 apparmor: allocate xmatch for nullpdb inside aa_alloc_null Now queued up, thanks. greg k-h