From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by dcvr.yhbt.net (Postfix) with ESMTP id 6D0181F9FC for ; Tue, 9 Feb 2021 03:09:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230409AbhBIDHx (ORCPT ); Mon, 8 Feb 2021 22:07:53 -0500 Received: from injection.crustytoothpaste.net ([192.241.140.119]:44490 "EHLO injection.crustytoothpaste.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230131AbhBIDGR (ORCPT ); Mon, 8 Feb 2021 22:06:17 -0500 Received: from camp.crustytoothpaste.net (unknown [IPv6:2001:470:b978:101:b610:a2f0:36c1:12e3]) (using TLSv1.2 with cipher ECDHE-RSA-CHACHA20-POLY1305 (256/256 bits)) (No client certificate requested) by injection.crustytoothpaste.net (Postfix) with ESMTPSA id 294066079B; Tue, 9 Feb 2021 03:05:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=crustytoothpaste.net; s=default; t=1612839902; bh=cyzoT/j8UBF1V7rexLSrvT70UMzsExh9zWAs3GDbwJc=; h=Date:From:To:Cc:Subject:References:Content-Type: Content-Disposition:In-Reply-To:From:Reply-To:Subject:Date:To:CC: Resent-Date:Resent-From:Resent-To:Resent-Cc:In-Reply-To:References: Content-Type:Content-Disposition; b=DvzQUuPJ3asY6uu7ACznw4FA3ykuxmx1iAfRnn9fcVFIOMWEptU4zEMOqQsdNOc3/ TCLFRC0UfQ2Q3msDDadsvTX92m8F2o9jZL7bwKTc2XISYj8tqJsgj3XhLMVSkYllyL xu47q9aRhIjlP9ZoJ+ld7sofjAsD1Q7QR2T87CTWfRV3XRMvKH1wlf3G2R3mHfLn6K 1U5PvJheN3BhsqCZxV6QXF3AV0GZZ3xzzGeeVvEkhTwiQ38RsNAcQFI+Gr3LYOFhbU 3xlsIPNGeBWGFr8Af5uzf/z6xf+l64Fault9eFzc6O1IN3A1imqY3qYcE0P6F94B7n DwK3bl0uvP3pTDbArjOgch7uRn878LGY1bwcX3zDYeRHEX5o8E7NlssPgvlgle+1Xl Rg1R6zdfKE8dmc5a8eHy95MTA5+t88wkWYEAbS+907IY0eyjGNLbIWHIrgsPaY+eSh qVvRyX2R4AvKXp1OT85sKCxd+hNOn+4sC04JEwxz1zUL9kfS7RV Date: Tue, 9 Feb 2021 03:04:55 +0000 From: "brian m. carlson" To: Junio C Hamano Cc: Hariom verma , Hariom Verma via GitGitGadget , git , Christian Couder , =?utf-8?B?w4Z2YXIgQXJuZmrDtnLDsA==?= Bjarmason Subject: Re: [PATCH v3 3/3] ref-filter: use pretty.c logic for trailers Message-ID: Mail-Followup-To: "brian m. carlson" , Junio C Hamano , Hariom verma , Hariom Verma via GitGitGadget , git , Christian Couder , =?utf-8?B?w4Z2YXIgQXJuZmrDtnLDsA==?= Bjarmason References: <47d89f872314cad6dc6010ff3c8ade43a70bc540.1612602945.git.gitgitgadget@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="afNWWTAtyK6HvEAj" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/2.0.5 (2021-01-21) Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org --afNWWTAtyK6HvEAj Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2021-02-08 at 19:54:18, Junio C Hamano wrote: > Junio C Hamano writes: >=20 > > By the way, when merged to 'seen' (you can try the above that shows > > %(subject) followed by %(trailers) with the tip of 'seen'), it dies > > like this: > > > > $ git for-each-ref \ > > --format=3D"%(subject)%0a%(trailers:key=3DSigned-off-by:)" \ > > refs/heads/js/range-diff-wo-dotdot > > free(): double free detected in tcache 2 > > Aborted > > > > There must be some interaction with another topic but I didn't dig > > deeper. >=20 > It seems brian's bc/signed-objects-with-both-hashes topic alone has > the double-free issue, without the "trailers" topic. >=20 > $ git checkout --detach bc/signed-objects-with-both-hashes > $ make git > $ ./git for-each-ref --format=3D'%(subject)%(body)' refs/heads/maint > free(): double free detected in tcache 2 > Aborted >=20 > So for now, you do not have to worry about it in your topic. Of > course, you are very much welcome to help debugging and fixing it > ;-) I'll send out a fixed patch tomorrow, but for the moment, here's the gist of the change if you want to an immediate fix to squash in: ------- %< --------- diff --git a/ref-filter.c b/ref-filter.c index e6c8106377..5f8a443be5 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -1344,8 +1344,8 @@ static void grab_sub_body_contents(struct atom_value = *val, int deref, void *buf) } else if (atom->u.contents.option =3D=3D C_BARE) v->s =3D xstrdup(subpos); =20 - free((void *)sigpos); } + free((void *)sigpos); } =20 /* ------- %< --------- --=20 brian m. carlson (he/him or they/them) Houston, Texas, US --afNWWTAtyK6HvEAj Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.2.20 (GNU/Linux) iHUEABYKAB0WIQQILOaKnbxl+4PRw5F8DEliiIeigQUCYCH71wAKCRB8DEliiIei gRjLAPsGLwA5FoMUOy1MC4qdaTaKF0731KLAg+yoUOSqq5zlQQEAgQPxMSBQbwns QdAEIx9AtYl6EysZUA9mgNnTTv8QGg4= =ykVu -----END PGP SIGNATURE----- --afNWWTAtyK6HvEAj--