From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [91.216.245.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4EC2B18FDBE for ; Thu, 10 Oct 2024 12:02:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.216.245.30 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728561753; cv=none; b=SWCcfkye5DsTWkE/dvrBGP6ZYratda7vi8W7i4YkPdG7vIdLwuFSoACnVtGbnKwhM/nh5gJieiZqSPEAHnGYab5naoOzZhtaQyhwRgQGw4MX8PGwJKll3+rpp75oXNkm8LYwtCqJGaD2SsLOflwmV252ZRS9PIIqMgzSYXNi7r4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728561753; c=relaxed/simple; bh=wX/k0vEBEf86s8flFnE2Uh3DfGe8zM7GmQlxkkwkt0g=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=WhNphnt0R0ai0W7K38tm/aLs/9x9jYyjMD8kmIBwVLF028sZEUv3lNDzXgKQT7qM8AHLdPMxL1fWA70jYjbOHOa2ROzvmKbq0fn2B/6ehmdyLoN8Z2Uu7n29pJlkCsmh3x0bCw+J3S39+ksi3bIDrUdw2FsgJCjkLrAusEEqXrs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de; spf=pass smtp.mailfrom=strlen.de; arc=none smtp.client-ip=91.216.245.30 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=strlen.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=strlen.de Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1syrs3-0008R1-Jg; Thu, 10 Oct 2024 14:02:19 +0200 Date: Thu, 10 Oct 2024 14:02:19 +0200 From: Florian Westphal To: Eric Dumazet Cc: "Lai, Yi" , Florian Westphal , Pablo Neira Ayuso , syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org, yi1.lai@intel.com Subject: Re: [Syzkaller & bisect] There is KASAN: slab-use-after-free Read in __nf_unregister_net_hook in v6.12-rc1 Message-ID: <20241010120219.GA30424@breakpoint.cc> References: 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Eric Dumazet wrote: > On Thu, Oct 10, 2024 at 10:58 AM Eric Dumazet wrote: > > > > On Thu, Oct 10, 2024 at 10:19 AM Lai, Yi wrote: > > > > Florian, Pablo : > > It seems that bpf was able to defer the __nf_unregister_net_hook() > after exit()/close() time. Thanks for the analysis, I will send a patch later today.