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Date: Fri, 26 Apr 2024 15:52:24 +0100
From: Catalin Marinas <catalin.marinas@arm.com>
To: Kees Cook <keescook@chromium.org>
Cc: Suren Baghdasaryan <surenb@google.com>,
	Kent Overstreet <kent.overstreet@linux.dev>,
	Andrew Morton <akpm@linux-foundation.org>,
	Christoph Lameter <cl@linux.com>, Pekka Enberg <penberg@kernel.org>,
	David Rientjes <rientjes@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH] mm/slub: Avoid recursive loop with kmemleak
Message-ID: <Ziu_qOmgnWRdAByp@arm.com>
References: <20240425205516.work.220-kees@kernel.org>
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In-Reply-To: <20240425205516.work.220-kees@kernel.org>

On Thu, Apr 25, 2024 at 01:55:23PM -0700, Kees Cook wrote:
> The system will immediate fill up stack and crash when both
> CONFIG_DEBUG_KMEMLEAK and CONFIG_MEM_ALLOC_PROFILING are enabled.
> Avoid allocation tagging of kmemleak caches, otherwise recursive
> allocation tracking occurs.
> 
> Fixes: 279bb991b4d9 ("mm/slab: add allocation accounting into slab allocation and free paths")
> Signed-off-by: Kees Cook <keescook@chromium.org>

For the kmemleak bits:

Acked-by: Catalin Marinas <catalin.marinas@arm.com>