From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-vk0-f43.google.com (mail-vk0-f43.google.com [209.85.213.43]) by fantadrom.bsd.lv (OpenSMTPD) with ESMTP id b16f4f55 for ; Sat, 13 May 2017 08:06:57 -0500 (EST) Received: by mail-vk0-f43.google.com with SMTP id h16so29680117vkd.2 for ; Sat, 13 May 2017 06:06:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=VJYe9hnIRZJeAtLRpqOC3RcgMOGDJ9dFjdgP9hxV6Lo=; b=rH0s036hd4TDSCgiWk35l1PaTsP1B3UEEZ6+OJUBTIqRuI79iMplzjfPxqAp6zf1KN Rg5rC/8H0pmwjYYMIjXxMMvXzt3a7D+scUtn42vNHix5zoSJtVLOzv/na7pn+pNdRD5o DJLCF/AVmHwwEXDJjzaeo49BsUnQ4Uk5UpigLksOv9sbJ78XPknaFsaz+pp0HHxDljti Mob2BjakaNTYPud1xAs3L/e2zF1ik21ZWqjocCvrslPnV+pI/+QWqtUAf3FvemPfq0tU tB0GZ9Eq4xKNRgHA5+E51QBwmBKRqyEGoDYjlVU7tKYx4S8P3VZnroTHL0c2gnZx8Oss D4Ww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=VJYe9hnIRZJeAtLRpqOC3RcgMOGDJ9dFjdgP9hxV6Lo=; b=hVhXPivJpsKq/OPcfVzZhMAiIDv/89JlCLV2MRYWuMu1qRzzzr7sur3cKBr3Rtzmux lHmxkYBylawOl09YWb29rECkRjaTR+AkfK4cFwTx6YMfX/QXUNgltkPsi0nwW7WNeo1G hd+ran640SnwQd3io03hWE0dLo3zRYIj+RSplXQKCOXKItgRhAyY/xN2ISdRmi0c+hQF rjwEv+i3iXtmRq+hZJY5G/uWwkGmiujdUzMLnaEjtwiFI2bPOLZKInRI1sCPsMgCVSSk 10NlSulrqQmARkne/ZqjNM7iZfZ25mE9iiPJP5rhwYgYPA0ZlZMabV/cvfSdiZCVxplq ypxg== X-Gm-Message-State: AODbwcB4q894ss66kdTmp8Er1z7G6tb6DhCSOtpzgI5wD9fCVgLmt9pP 4RYQ9EBfeH8V/pRYMCJMR6pBpywKjbjukFA= X-Received: by 10.31.115.194 with SMTP id o185mr4310650vkc.45.1494680813623; Sat, 13 May 2017 06:06:53 -0700 (PDT) X-Mailinglist: mdocml-discuss Reply-To: discuss@mdocml.bsd.lv MIME-Version: 1.0 Received: by 10.159.54.239 with HTTP; Sat, 13 May 2017 06:06:53 -0700 (PDT) From: Abhinav Upadhyay Date: Sat, 13 May 2017 18:36:53 +0530 Message-ID: Subject: mandoc -Thtml crashing for certain inputs To: discuss@mdocml.bsd.lv Content-Type: text/plain; charset="UTF-8" Hi, mandoc -Thtml seems to be crashing in some cases, when you pass the -Ostyle option to it, such as `mandoc -Thtml -Ostyle=s/style.css'. The core indicates a null pointer dereference at line 754 in mdoc_html.c (1.14.1 release): if (h->style != NULL && !bl->norm->Bl.comp && (n->parent->prev == NULL || n->parent->prev->body->child != NULL)) { ... I am able to hit it with the following test case: .Dd May 13, 2017 .Dt FOO 8 .Os .Sh NAME .Nm foo .Nd man page for foo .Sh DESCRIPTION foo bar .Bl -tag -width Ds .Sm off .It Ar device Open the specified device .El It crashes because of the presence of `.Sm off' inside the list. The actual issue was happening while generating html for the rmt(8) man page from FreeBSD-12.0-current but I tried to reduce it down to a smaller test case for ease of debugging. - Abhinav -- To unsubscribe send an email to discuss+unsubscribe@mdocml.bsd.lv