From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id xg0AHjYxtGmPrScAWB0awg (envelope-from ) for ; Fri, 13 Mar 2026 11:45:58 -0400 Authentication-Results: simark.ca; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.a=rsa-sha256 header.s=default header.b=jCCffau5; dkim-atps=neutral Received: by simark.ca (Postfix, from userid 112) id 615871E0DD; Fri, 13 Mar 2026 11:45:58 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=ARC_SIGNED,ARC_VALID,BAYES_00, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,RCVD_IN_VALIDITY_CERTIFIED_BLOCKED, RCVD_IN_VALIDITY_RPBL_BLOCKED,RCVD_IN_VALIDITY_SAFE_BLOCKED autolearn=ham autolearn_force=no version=4.0.1 Received: from vm01.sourceware.org (vm01.sourceware.org [38.145.34.32]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id AFD5E1E08D for ; Fri, 13 Mar 2026 11:45:57 -0400 (EDT) Received: from vm01.sourceware.org (localhost [127.0.0.1]) by sourceware.org (Postfix) with ESMTP id 278FF4B7A1EE for ; Fri, 13 Mar 2026 15:45:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 278FF4B7A1EE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1773416757; bh=Ku2DwNbbXMonT+X+Otr/Qb6p+Ek2BgZweJaxzcSoQxE=; h=Subject:To:Cc:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=jCCffau5JSMOp7nDdFv3uwUtFoFCd69EbcYQmOFVIkoBbkPLAE7XVhGXpWD970G4t EaBBBq88zQCSASQiHQourQSZOHNDQt54CO/d+xNojCkmS6IKA0cy37NErzFfTzktcM ZhY4zYjJOvgD2UyfEZpw3PwVKtA+XNgi99pkrKVg= Received: from eggs.gnu.org (eggs.gnu.org [IPv6:2001:470:142:3::10]) by sourceware.org (Postfix) with ESMTPS id EF99C4BC8949 for ; Fri, 13 Mar 2026 15:45:22 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org EF99C4BC8949 ARC-Filter: OpenARC Filter v1.0.0 sourceware.org EF99C4BC8949 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1773416723; cv=none; b=CFcfqbyqFKPrnpjSOSv+jsMtPU+7xN5GCdhMMGXD1Zis5UsvyKzIQonFhWG03iVHvazE92hTZNUAZu6CldweEA9lJlEeJ6q//q0Kp2YTBchpnSD0h302og+VFVmU+CXARKWDe7NiR3Jb5dYjAzNMkRhRindGbq3Jdu6AJggIZtg= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1773416723; c=relaxed/simple; bh=7WMOHxVq1tmqp9JrXb68HCTdc2Q/Aj+NHrszSN5fVu0=; h=DKIM-Signature:Message-ID:Subject:From:To:Date:MIME-Version; b=pOZvIafLWce8uZrGSDSZefiRxZXtVocuiqgmiwxQPp1lypCPPF+bwoYPstO90j3lepZkjXnUrv2rRNP8uKv37gmRhzut/6llYwBd760XoE02gNOP8KTf8fWhn2EaVNEMtrfhN5c73/lvVJPFlSaSC5Y91zFlLcgqv42nDe4oiyg= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org EF99C4BC8949 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w14hW-0007GH-EK; Fri, 13 Mar 2026 11:45:22 -0400 Message-ID: <3652472d8fed2db8400149498a2db9c98e9cfc5c.camel@gnu.org> Subject: Re: Does gdb debuginfod download libc etc.? To: Andrew Burgess Cc: gdb@sourceware.org Date: Fri, 13 Mar 2026 11:44:50 -0400 In-Reply-To: <87zf4b7shi.fsf@redhat.com> References: <86wlzmfyep.fsf@aarsen.me> <4844fe241f5524951dc68a6ce05e450897342034.camel@gnu.org> <8c514818-14bd-462d-8aed-0c323327acae@simark.ca> <7949b3d7727ab11f6bc3c833fae81f485c345c47.camel@gnu.org> <87ldg16ivz.fsf@redhat.com> <421fe2ad615c4af1443ddbd3955ee65cb7feb9ee.camel@gnu.org> <878qbz936m.fsf@redhat.com> <96dde02ef4f1d88779de1eebb5277a7258fadf46.camel@gnu.org> <87342690kz.fsf@redhat.com> <81c7757f1e140136fb40ffcaf7d605435a98a98d.camel@gnu.org> <87zf4b7shi.fsf@redhat.com> Organization: GNU's Not UNIX! Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.3 (by Flathub.org) MIME-Version: 1.0 X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Paul Smith via Gdb Reply-To: psmith@gnu.org Errors-To: gdb-bounces~public-inbox=simark.ca@sourceware.org Sender: "Gdb" On Fri, 2026-03-13 at 13:45 +0000, Andrew Burgess wrote: > I suspect this is a use-after-free bug.=C2=A0 Try the patch below and let > me know if this fixes things. Aha! I was looking for some kind of uninitialized filename pointer but this patch makes perfect sense. And, it fixes the problem. Nice!