From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 5F9694B0486 for ; Tue, 11 Aug 2026 02:28:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786415293; cv=none; b=Anw+4uZ9uL7F8yg1mkY9hGFn22OJT0nQXv0S0HbMi43ApdGfwocDvPdyOgBO+aTU8XCWP+JFPUW2NdQHpg9Yv2sipL/gQqLVtViMMU37pSgwy83tzBIO1ZR3WqZ9o6M/Y0hY+hj7fhcCzAk9GytR8DORnja66UHwePWOK1N0avU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786415293; c=relaxed/simple; bh=uvx2J8Kwnq3pK/ReEOH8xyx5bDJpYA2EVlqj2212Fww=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=p451BdybIivGSKjhLlBqZ21V7VSD0ZhZBjpojeDrCTcqPrFjbwDS1p8Zot4E+CRwbM2WWtBUe0sy6klKmboqbknHezUI+axWyUnG/SzSYyBdgKR2S7MG12ms7PpQ4JcC7WPV2LJEgsNaXJH3WAILmQ1whR8fvvxGdwQdiFEigl8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=m2n8hkh4; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="m2n8hkh4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 765091F000E9; Tue, 11 Aug 2026 02:28:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786415291; bh=XOl9/Sm7kjFPeJiwgYU/095aX+Z8syqjZ2lYENTKrDo=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=m2n8hkh4iQ4oj9u8R3a2iE3dw3qJ0s7z84G4pEQlrl4033hEGt2SL5YEWqklfj6YG GQu8LuVhmAz4mpdt9UNAGNGVCrX0IfGW+qpL4pc+cNNiSOMa81ErnkIqFqHScraiwZ PLq+3g1kjCzyO4UqlnvL+6A0slfX2DEIYhkDnHW0= Date: Tue, 11 Aug 2026 11:26:39 +0900 From: Greg KH To: Martin Petricek Cc: stable@vger.kernel.org Subject: Re: [BUG] apparmor: deadlock in complain-mode change_hat Message-ID: <2026081110-scenic-ditto-22e5@gregkh> References: <552f7777b10a92ef675cb12a07ba8b7b@petricek.net> 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: <552f7777b10a92ef675cb12a07ba8b7b@petricek.net> On Tue, Aug 11, 2026 at 03:46:21AM +0200, Martin Petricek wrote: > Originally found in 7.0.0 in LTS ubuntu 26.04 with pam_apparmor + su in > complain mode set to change hats. > Then verified in newest available vanilla kernel I've compiled to see if > still present: > > 7.2-rc7 vanilla -> affected Please resend this to the apparmor developers and mailing list, stable@vger isn't the right place for it. thanks, greg k-h