From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AIpwx4/bU9q50lEXJhUwFipOYgez5hlkgUCMMo0kD4wAwOm0EAvN/H6CE1ReZvjAN6He2y8jKhCr ARC-Seal: i=1; a=rsa-sha256; t=1524406478; cv=none; d=google.com; s=arc-20160816; b=JXWcy7wZTR17n+eCycI1Q0SGvGr4ovCX2rM1QRdRPt/YCimY2oQOcQlJDIsNnAm7h5 Rwp1vHBX4Z0c9OE/g9PHECvV2PkPPDbOw/mp0Sdv2mpE7L2c7XwwqfAbeQwsWZdK73fF kZK8ZS2Bcl6X4nYr4hBUSdlpCbkkN8sydNVrOmj2N8oHoyv2lWmb+hxdOyj9tttui5S2 q1DmaylKq0umjvWpmIDfVtX1QslLXQ4Fy6WVWjPD9/KooSfLf9V22OMXaaEBQ1BbWCd3 OC5+y/+Zo8dBVAt17Z2SRlv5WUCA7wMtObSf+87TzOVsRNT9RWN2f9f7sYh7nPRNF1yO zqIg== 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=RsXLrIoYCQPZMCfT3e/SV1v62+BpsP6n2gfmX/eXiow=; b=xit3h15ZDATRzSaptsX0R4gb8FF/JAnnvPCijIJHd7oqbh4SgpRIzTx+shVEcLs4Af 3Z/iWMz2uWaCkSXMtiAgrTu7dRAZcQf+6Ki7LaQqedXqkrdSqfexKC+5UuB2YoPYz/+g cITrOXZCTp9LqZO2tdvJSELAYB5pK1WLVOJkUb54NLCuFo87MoKkwqNw5I/Mn2H4k1UU NsTAgdQM8bQJafYn/zuR4RW+P0uOmiXV2bb5Hi4pwIy1jKaF0C6oouC6ZSpq9Muztpfb T47VlFbbZUALE5Yu3AeJ+d86LllvHImnGDsXMCAoEysLOUEvcQlfo4/VaKeiTb3WO0Ie D9jQ== 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, stable@kernel.org, Al Viro Subject: [PATCH 4.9 86/95] jffs2_kill_sb(): deal with failed allocations Date: Sun, 22 Apr 2018 15:53:55 +0200 Message-Id: <20180422135213.954335057@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?1598455296001564501?= X-GMAIL-MSGID: =?utf-8?q?1598456048078903710?= 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 c66b23c2840446a82c389e4cb1a12eb2a71fa2e4 upstream. jffs2_fill_super() might fail to allocate jffs2_sb_info; jffs2_kill_sb() must survive that. Cc: stable@kernel.org Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman --- fs/jffs2/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c @@ -342,7 +342,7 @@ static void jffs2_put_super (struct supe static void jffs2_kill_sb(struct super_block *sb) { struct jffs2_sb_info *c = JFFS2_SB_INFO(sb); - if (!(sb->s_flags & MS_RDONLY)) + if (c && !(sb->s_flags & MS_RDONLY)) jffs2_stop_garbage_collect_thread(c); kill_mtd_super(sb); kfree(c);