From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx493oofapoHQgaY9kn+SV/pL+d3pearYVSYxOIuTiKAc5gZcVqYkt5iyySiClYbAVY2Rk7/B ARC-Seal: i=1; a=rsa-sha256; t=1524406481; cv=none; d=google.com; s=arc-20160816; b=fLInrwMCyCE63ePydMdK1zj9CMR6GizRNaU5BESmCPl4UWLsr3uNKtXGL3BLHtPWZE VUZi7X2gvaqA+eGHUJIO8YXU2+TeEzvZGfLDb51vTLD+X9NDKSlROWkgWfHytP4hsikQ 9UTjVqBI8DCTjQQ3i7ANMs2B2nWJbOocFt321cDh+mCDIDDgTqurRiL+BeArrIrfe3mX FEOhQqk/x9h8Vwj0SeU2/EKUOAERTlqL0jbjOq6SjKnDQolUaNhga4pqIYWrC74Tw7mx WWRcClNTSw+W2vTGoYzl+rlUNd7V9+GpTTrckaz1DwzDCsZEAynvJ8vCUdR64K3q8NTo eS8w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=pchBYdmlN/OU/58Vd2kRogWXiNB2roeVaDqh7bCPgw0=; b=VZHrXyDzhXN6IP2H/U1466PXgDCZSEedrVCoUKG425wxIC5k/3YtUeseveglJwOaWf R7zCAyP7DMbvM53aSkb1FiPbG35TGBz8LlSkZmS2wy3J9bxhxiz4Ee83ojzlrbyB/YP2 CSQKQPkKRKSudQIlysS044o3Ub1icn+ZbEqnlHUGW4+gShCr8aG0/gFASBQDX9PXuR8Y /Ca5A6mr/jnuMWVqNQSjE/9yq4VZTOwBSxb31UECRFDSW4YsF2QUzqSzCb4U8kGL03pX yBGPqhTx91Cs9xzRjLRFMnvcktJA5JVZ5vTZiKyq2zRK3VJj643L0CheF0ekrtHrzIxX w4bw== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Al Viro Subject: [PATCH 4.9 87/95] hypfs_kill_super(): deal with failed allocations Date: Sun, 22 Apr 2018 15:53:56 +0200 Message-Id: <20180422135213.992770641@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180422135210.432103639@linuxfoundation.org> References: <20180422135210.432103639@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1598455302039543864?= X-GMAIL-MSGID: =?utf-8?q?1598456051134325113?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Al Viro commit a24cd490739586a7d2da3549a1844e1d7c4f4fc4 upstream. hypfs_fill_super() might fail to allocate sbi; hypfs_kill_super() should not oops on that. Cc: stable@vger.kernel.org Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman --- arch/s390/hypfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -318,7 +318,7 @@ static void hypfs_kill_super(struct supe if (sb->s_root) hypfs_delete_tree(sb->s_root); - if (sb_info->update_file) + if (sb_info && sb_info->update_file) hypfs_remove(sb_info->update_file); kfree(sb->s_fs_info); sb->s_fs_info = NULL;