From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3949AC43381 for ; Sat, 30 Mar 2019 11:20:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F04D0218AE for ; Sat, 30 Mar 2019 11:20:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AB1nFHIk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730496AbfC3LT1 (ORCPT ); Sat, 30 Mar 2019 07:19:27 -0400 Received: from mail-wm1-f43.google.com ([209.85.128.43]:50747 "EHLO mail-wm1-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730414AbfC3LT1 (ORCPT ); Sat, 30 Mar 2019 07:19:27 -0400 Received: by mail-wm1-f43.google.com with SMTP id z11so5155339wmi.0 for ; Sat, 30 Mar 2019 04:19:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=hwKyM+Ym2jJTEHiqUGmr3jp5VdqbNDC6afbiZF668HQ=; b=AB1nFHIkK8TDP06EOV7d5SMKW2w5vu0lmbz32YO90CRs2ZDGDWfKnvfepsTywsiaO0 IJ8xs9Obd1xxAVWInfDaVMFpepNCLRfYc5E8c/0II+QABrHeVbAUz0GNgT4PKE0oSJgh eV4K8ZrmPDgmuSr+xGRFk75A7sgvxboDds45W8WrwoGXidXuLigNh8qN3TyJiJXyfVXK kbBK0EDahA/qZqKhlaOFb6bWGvwllhwvIkUEXWEac/iwDEG+PKsQjM9gfOqBcA1ORL5c 8ovMNoyQ4HSvf+c+vHWw8zT2+fuQjAoNnU9ccgWidSw/hof1Kl6wMhV4AYkpTWLEuetr 4GGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=hwKyM+Ym2jJTEHiqUGmr3jp5VdqbNDC6afbiZF668HQ=; b=CwxyXJJXspSWe8NDpRXMQ+WZJWbrkOjW/jTUIi5GbXDNtm1Y7m4JYgeV+IG5EavQc2 kas9csBegiKz1ZesxRN3xkt574wpHzqIfiZ+WiTSaaxwF18IxiCPVSipdTyJvyO4Wl0/ eg+W7whne1sFruA52JancqdIMJ3tMjvJeF4oKFB9nL85fgqytbVJgzQcv63eBVlyvdEy PV51laYQ0RZ7HX0cu2xL3R6NQcby+0X9Ix0tuOlE8SHdFdkC3FB6R7fzk1qs+gs1oyA1 PdYa9CGdTr96q0wi+7BKySJgoa/z2p8dKFYdlZ1a/e5YqZgD1wG5BOjN5qDnzAFCLsMr 7hHw== X-Gm-Message-State: APjAAAW8AZmJPjzN4HzUpADG0vxa2s8RXN7yDPNXQv7NIJqR4TxQpQOo T/eP5PLarTWYnOurQPnnLofnAOw= X-Google-Smtp-Source: APXvYqz2RF4DWy1FMY1BCCnIc0DzFp6mE3Fm/iigyZSozdOGQddZ7uqrdWndp3/dbkOx0i4yt+WSlQ== X-Received: by 2002:a1c:c018:: with SMTP id q24mr6370975wmf.148.1553944765657; Sat, 30 Mar 2019 04:19:25 -0700 (PDT) Received: from avx2 ([46.53.240.116]) by smtp.gmail.com with ESMTPSA id z18sm7489879wrr.90.2019.03.30.04.19.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 30 Mar 2019 04:19:24 -0700 (PDT) Date: Sat, 30 Mar 2019 14:19:22 +0300 From: Alexey Dobriyan To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH -mm] elf: fixup error path in PT_INTERP case Message-ID: <20190330111922.GA15258@avx2> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fix broken error path if PT_INTERP filename can't be opened for execution. Reported-by: syzbot+0d1fcd7268b21baced4a@syzkaller.appspotmail.com Signed-off-by: Alexey Dobriyan --- fold into elf-free-pt_interp-filename-asap.patch fs/binfmt_elf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -777,7 +777,7 @@ static int load_elf_binary(struct linux_binprm *bprm) kfree(elf_interpreter); retval = PTR_ERR(interpreter); if (IS_ERR(interpreter)) - goto out_free_dentry; + goto out_free_ph; /* * If the binary is not readable then enforce