From nobody Tue Feb 10 16:55:12 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4f9SNd22p0z6RcgM for ; Tue, 10 Feb 2026 16:55:13 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4f9SNd15b1z3X0K for ; Tue, 10 Feb 2026 16:55:13 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1770742513; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=3qyoLDiGgXH6BwhDQN2PyME5CcuFhcAGKlXemLX8Ews=; b=eokkN2QBP2HFC+BLtIB6D1Ohntjz93vpcibhDHIw5PFeKsoKHfc6B59F5aVpBqc14aKTIz Hwn4S24IUAI1IMGDeGlw42BIP889VpEgt9E9p9TwJj1SjaamM5QcnJxNVjRiWv0iWmCtVq xcw25fCvlQb42D7M0qyWSf8DKoS3ktN27vk1g2v39kJjVtlMTdVBtMUaTsHK6yMGdl1Kfx OtbD9HEzXXz1MCdzcfU0H152rirKmtJL8VEAcES1cT4dGi7iybM6p01Wrwzmr2Fzd5KJ9+ nHBm5mUF7wWADXQe4yiApvqXcAh6Qs6Vb6nJdXAnNf+rZU3mOaLoKUlnam+9XQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1770742513; a=rsa-sha256; cv=none; b=uNNab4xTvqTdidTwi0lIKhPRDMdD7y5LRrIvetnVXk6YwAhrgrNFm/0GdvNP7UQk3IICUG nJVWsuOAjKF8hs/E9zQZ91OP1Mp33HenlkXy/+lob88WaI/WYVUdmXZB4LCNi1mnIQs90M DmkmElqJOZ9YceHw2OK+qjmKARpiZ4MObREKovNq0/pnuLKxC+W6L4lF6f0TQHKB+1DJvc cmGm00kyzxcHHUgNnDTXNqiNDQeIoPdZsbgl1myD1bO91lIaXSitkMbQoDUsoaXLA1AT+v 8U2K0Eb1xGasxTiUYneuHTvKuEGSEJnvZEzna/88Z34EGlJkOu9Cazl0pRK6zQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1770742513; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=3qyoLDiGgXH6BwhDQN2PyME5CcuFhcAGKlXemLX8Ews=; b=lRyWr2gbpdIiGJxctr9es3qC39rlPTz8E9DsfNg1fDmwHA81e8Zp3GpN9lEnpLHxHBQSW3 PrESJvblGpQ+0QSiL2tFPYvA7icMAJfj6WLaRwdAoGiOjHvOz+wZm32tbj8/515zwWGIWb hvuzABZu9XlpgiuUkU/PB2R038oMPQEk7wb0mmWfXYfKdrsAqqAR+DLGwP+Y5sejEucAbT LMGzfb+Z5ZuwR30hzNevRaSIvPZHXY0KfKxvtXxtGm+k3T1XU+vGkYH3R4FVtIZgT+eroW YpeZC3MuHUJPHXmzmKAuyEm4G9sTfRv3R+YuwuFsIfUMU+npkWDrXfUtZPorwA== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4f9SNd0Kmxz1QP0 for ; Tue, 10 Feb 2026 16:55:13 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 210c1 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 10 Feb 2026 16:55:12 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Olivier Certner Subject: git: 7e5f4bb3a1c9 - main - kernel dump: dumpsys_gen_pa_next(): Fix "no more chunks" condition detection List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: olce X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 7e5f4bb3a1c999d1893528faa75559f37365de47 Auto-Submitted: auto-generated Date: Tue, 10 Feb 2026 16:55:12 +0000 Message-Id: <698b62f0.210c1.487fedd9@gitrepo.freebsd.org> The branch main has been updated by olce: URL: https://cgit.FreeBSD.org/src/commit/?id=7e5f4bb3a1c999d1893528faa75559f37365de47 commit 7e5f4bb3a1c999d1893528faa75559f37365de47 Author: Olivier Certner AuthorDate: 2026-02-04 13:04:20 +0000 Commit: Olivier Certner CommitDate: 2026-02-10 16:50:27 +0000 kernel dump: dumpsys_gen_pa_next(): Fix "no more chunks" condition detection In the (improbable) cases where either: - All entries in dump_map[] are used, so there is no guard entry filled with zeros. - Some dump region has size 0. We would respectively access dump_map[] out-of-bounds or omit further dump regions when iterating. MFC after: 2 weeks Sponsored by: The FreeBSD Foundation --- sys/kern/kern_dump.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sys/kern/kern_dump.c b/sys/kern/kern_dump.c index 67c5844013be..f1354157abf1 100644 --- a/sys/kern/kern_dump.c +++ b/sys/kern/kern_dump.c @@ -82,7 +82,8 @@ dumpsys_gen_pa_next(struct dump_pa *mdp) return (&dump_map[0]); mdp++; - if (mdp->pa_size == 0) + if (mdp - dump_map >= nitems(dump_map) || + (mdp->pa_start == 0 && mdp->pa_size == 0)) mdp = NULL; return (mdp); }