Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vzipJ-001Fnj-1r for pgsql-bugs@arkaria.postgresql.org; Mon, 09 Mar 2026 22:11:49 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vzipI-000zVm-0A for pgsql-bugs@arkaria.postgresql.org; Mon, 09 Mar 2026 22:11:48 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vzinw-000xJV-2u for pgsql-bugs@lists.postgresql.org; Mon, 09 Mar 2026 22:10:25 +0000 Received: from fout-b8-smtp.messagingengine.com ([202.12.124.151]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vzinv-00000001M7l-1wXC for pgsql-bugs@lists.postgresql.org; Mon, 09 Mar 2026 22:10:24 +0000 Received: from phl-compute-02.internal (phl-compute-02.internal [10.202.2.42]) by mailfout.stl.internal (Postfix) with ESMTP id DE0E61D00251; Mon, 9 Mar 2026 18:10:21 -0400 (EDT) Received: from phl-frontend-04 ([10.202.2.163]) by phl-compute-02.internal (MEProxy); Mon, 09 Mar 2026 18:10:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paquier.xyz; h= cc:cc:content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:subject :subject:to:to; s=fm1; t=1773094221; x=1773180621; bh=7iAEIjnwNZ 6kIEwoa23fAqLyF4dbmSbSwc4/Wu8W+0Q=; b=18nFsryVFYeKhADjRpfOn93bE/ 10ejid6AfrKyw88PmB1I0QK3CQe+Sc22o7Z53PuI/4VTDTJwYU425wywQDETwsIY Fs4EEgDjo6i8c+p6Ug+XkXt/kW1IkZ62GPsYWTSCko5tuc2JmrFKPEek4dG+yxZk I5HXGZCZhjXUzYzF/TQ0VZ6qjo6n957rJTAeX595kmG8hmshkOktrWhTC7jvbIWG tfa2hYV4UvbkqM3wz/POiZldulyEKG2jS9v/zuw0O3c5o1hpv4Jr3BOs5wfFM/wQ uGDIBPUri36T8EgyZXUqlA+2vzyvf6UfbsgpkPaVMKaSXV9Qwjs6IYdwvTpQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:subject:subject:to :to:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t= 1773094221; x=1773180621; bh=7iAEIjnwNZ6kIEwoa23fAqLyF4dbmSbSwc4 /Wu8W+0Q=; b=x7NMJ6jiOrlJh7m9D7Da2oKAbkyH9IpGrFodvI8HWZgOF1aOtVH Rw3YF5JSmOW5a3pBkwsFXJELuhszgBvUdy6s/1rrvWfHlAtj2ySwiqeknkkm/KHS Um97FnwK/PlWpw9SUnDLdqLSbZOkd81c0pxIY0ON013IpCn0tkmOwOhDMk6jEmel r3qljb4CFb4FCH5JiPfpWyw0x3cnpZA4HABdEjBotRtIjbV2LtA//b2lIgi2Sgbb vhLw6WJd+/3bk885k33nCd9+NJHfad0u910vxomqUbU0qVtFRtidhJ0cgjZNgQml N07nMkrtNodQE8M/Cd7d/FMVsq85mNWOI+Q== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddvjeelvdelucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnegfrh hlucfvnfffucdljedtmdenucfjughrpeffhffvvefukfhfgggtuggjsehgtderredttddv necuhfhrohhmpefoihgthhgrvghlucfrrghquhhivghruceomhhitghhrggvlhesphgrqh huihgvrhdrgiihiieqnecuggftrfgrthhtvghrnhepteelieefudffhffhtdetleeggeeg fffhkeeuveetiefgudduvedutefggeeivdejnecuvehluhhsthgvrhfuihiivgeptdenuc frrghrrghmpehmrghilhhfrhhomhepmhhitghhrggvlhesphgrqhhuihgvrhdrgiihiidp nhgspghrtghpthhtohephedpmhhouggvpehsmhhtphhouhhtpdhrtghpthhtoheptggtrg ehhedtjeesqhhqrdgtohhmpdhrtghpthhtohepjhhimhdrjhhonhgvshesuhhnihdqmhhu vghnshhtvghrrdguvgdprhgtphhtthhopehtghhlsehsshhsrdhpghhhrdhprgdruhhspd hrtghpthhtohepphhgshhqlhdqsghughhssehlihhsthhsrdhpohhsthhgrhgvshhqlhdr ohhrghdprhgtphhtthhopehmrghrrghlihhsthekieesmhgrihhlrdhruh X-ME-Proxy: Feedback-ID: i0fe9450f:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 9 Mar 2026 18:10:18 -0400 (EDT) Date: Tue, 10 Mar 2026 07:10:13 +0900 From: Michael Paquier To: cca5507 Cc: Jim Jones , Tom Lane , pgsql-bugs , maralist86 Subject: Re: BUG #18943: Return value of a function 'xmlBufferCreate' isdereferenced at xpath.c:177 without checking for NUL Message-ID: References: <31f3480e-cd7d-4021-b392-87922572cc37@uni-muenster.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="M/+HGG29DFuXWs3I" Content-Disposition: inline In-Reply-To: List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --M/+HGG29DFuXWs3I Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Mar 09, 2026 at 04:31:37PM +0900, Michael Paquier wrote: > You are right, this needs to consider the pointer variable as > volatile, as done in your patch, and not treat as volatile what is > pointed at. This comes from 2e947217474c, as of HEAD. I'll take care > of it later. The same business has been fixed in xml2 as of > 93001888d85c.=20 Fixed as of 6307b096e259. -- Michael --M/+HGG29DFuXWs3I Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEG72nH6vTowiyblFKnvQgOdbyQH0FAmmvRUUACgkQnvQgOdby QH2qgQ//cv4C9G79SFN6rWkqVYGk9lK7f/g5WrkY8EPLo/35Z/iX+agpcXvxs2uK lEQiNnblpqEVXnTYq41Q/ZB8t2IutcNRDbbl9blaokYKHvzVp2p01PCuYQ1hHWAq 0T7nEiaIqwlFbXlFNrlc4C5G0D9frKM3LZlkXGFDM7VZafM7UMjtndb500cKbQp1 YdeIPf/p4eomelwsGOsx0xGuBUWm6+iK2o0UTg2xNXm9ubYXFIc2mk36JewyGMa4 9xopdK53/kOioa/p8KL/9Af1sASN/q7+fi2GLWLBGVTqTRE3vak1AIZjIcGx7m4t E1g07zitJZuqdfxzL8+jGy1/7sZCsJfeBVXNqNMdN2JduiDF8sTbklCenGXF4qbp hQRT8Sdo58WXFqVTOnxnbXp3jna5jTTOK4+Q2G7XX5iVmGrZLMyt04do1oXDUmSY tY1sNeAB4NnHfuZYQ97/3PQwPOdDC2yQaYNH4ZuwUblY9VUoEONYVDZxtSKiU68S /LkyOd0ozFzOcxuf64SEbbnJNYGkGz4c0DpesBSOY4Jtmdld38CuJKO9Syqwr5Yg 1wlv/XPDxEKwy+2bF6OxV7zPT6Binp+xpXwCDUbUUpY81q3FHSqOh2yeJqe0WLo9 fePHldwWx7vtyGehbfHVlGhtCgH4ZpS19S9cyVehYoIC2sY/7xI= =KLiu -----END PGP SIGNATURE----- --M/+HGG29DFuXWs3I--