From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-183.mta0.migadu.com (out-183.mta0.migadu.com [91.218.175.183]) (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 E34814C70 for ; Thu, 29 Aug 2024 02:43:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.183 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724899416; cv=none; b=ECeRnweFe5r/OGKvZfVy1W71yO0wkNPne0egKIKFDCUTz+spCm96b/Bz5Vcfq80c1ozuRanjBs/gLibLE3rjvTO6RZYF5XKWKdACPzHQr8kfA2b1r7RYEKiClYiuAIvFRfP0ABW/sj7I/JDSJDqdcYe+RWFEA8XSxgb+BlSWyII= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724899416; c=relaxed/simple; bh=iMlNIyAp9xbd1MXJTwBtMlnKA8Uydo3I+gaSZj5PAso=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OkdrRDdAsRba0Sumttiwx/rxJu8vheHTeajCytTYdVE2j9THuqvNEpOJ1Zwp41x96APDtQJut38R5L/xrAeYhEUvSd93vtbC3MBHWQQmeCRpVH332BXU3IY7Ye3uEWErAVDLG4AN6qUyOtj13qCrK7zF9Ljm8SHtwUoZViyfr4w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=TC4GUpuw; arc=none smtp.client-ip=91.218.175.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="TC4GUpuw" Date: Thu, 29 Aug 2024 02:43:27 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1724899413; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=SdgR6bWMr023JzNGS1NP/3oB6n68ffTOSfVCi43HP6U=; b=TC4GUpuwL7+acgtopotjpyY45Oqr70/JSBnotB1mA7zb8AdLvuy4nncR21cChRVk4rQ/W1 uPEXADipNt7H2ENfrV7E2XIoaAx50EYCwXVIl++ADLtatVkcmQjURIoRc1riGeQlloizQd /QuVwB5XVycDgXwqao1P9E1Sb9b8N2s= X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Roman Gushchin To: Xingyu Li Cc: hannes@cmpxchg.org, mhocko@kernel.org, shakeel.butt@linux.dev, muchun.song@linux.dev, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Yu Hao Subject: Re: BUG: general protection fault in get_mem_cgroup_from_objcg Message-ID: References: Precedence: bulk X-Mailing-List: cgroups@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: X-Migadu-Flow: FLOW_OUT On Wed, Aug 28, 2024 at 04:09:49PM -0700, Xingyu Li wrote: > Hi, > > We found a bug in Linux 6.10 using syzkaller. It is possibly a null > pointer dereference bug. > The reprodcuer is > https://gist.github.com/freexxxyyy/315733cb1dc3bc8cbe055b457c1918c0 Hello, thank you for the report. Can you, please, share the kernel config file? Also, how long does it take to reproduce? Thanks!