From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id AF4C31A23AC; Sun, 8 Mar 2026 11:03:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772967785; cv=none; b=iqDtMAsTyGfq/z/1NU5BMqsDqrisggLRVv11nNfA/Uh4KotOiX/0b6IhPadQAy4Rg4n2vtkHzyBsVBczQsWlXlAGSFsFJPgaWStWNUalNHXhExPWCasvCTIDi4F83Ywzn314RckYkvWi4NrcLw5/o35/dDNFBjkxcQDYPGtNyiA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772967785; c=relaxed/simple; bh=PR+zWqG+a1EW/bd+uHkcf0ZN34ZcbHEDRJO3nAc952M=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rfEOWTO0YviOoS5QJPuMDv3jcqBbYmSKC0dahmFQ0leKx+xbRG2r8IgVCPrRmqcfzrWGyLuyt2kerWQYKaJ4ZNSM1RaMEz6GhTcRhIE+omy13e07IbR3breChTKpleuzKwttnttO51m5LajmeUkJ4xcaYOELF8O12nRfGglJ2Ew= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 71CE61570; Sun, 8 Mar 2026 04:02:55 -0700 (PDT) Received: from arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0FE963F836; Sun, 8 Mar 2026 04:02:57 -0700 (PDT) Date: Sun, 8 Mar 2026 11:02:55 +0000 From: Catalin Marinas To: syzbot+cae7809e9dc1459e4e63@syzkaller.appspotmail.com Cc: "Vlastimil Babka (SUSE)" , Harry Yoo , Qing Wang , Liam.Howlett@oracle.com, akpm@linux-foundation.org, chao@kernel.org, jaegeuk@kernel.org, jannh@google.com, linkinjeon@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, pfalcato@suse.de, sj1557.seo@samsung.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz, Hao Li Subject: Re: [syzbot] [mm?] [f2fs?] [exfat?] memory leak in __kfree_rcu_sheaf Message-ID: References: <698a26d3.050a0220.3b3015.007e.GAE@google.com> <20260302034102.3145719-1-wangqing7171@gmail.com> <20df8dd1-a32c-489d-8345-085d424a2f12@kernel.org> <925a916a-6dfb-48c0-985c-0bdfb96ebd26@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@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: #syz test diff --git a/mm/slub.c b/mm/slub.c index 0c906fefc31b..401557ff5487 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -7513,6 +7513,7 @@ static void early_kmem_cache_node_alloc(int node) slab->freelist = get_freepointer(kmem_cache_node, n); slab->inuse = 1; kmem_cache_node->node[node] = n; + kmemleak_alloc(n, sizeof(*n), 1, GFP_NOWAIT); init_kmem_cache_node(n, NULL); inc_slabs_node(kmem_cache_node, node, slab->objects);