From nobody Thu Jul 23 10:00:33 2026 X-Original-To: dev-commits-src-all@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 4h5RSy0qz6z6lVmc for ; Thu, 23 Jul 2026 10:00:34 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4h5RSx6BQrz3Vd1 for ; Thu, 23 Jul 2026 10:00:33 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1784800833; 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=FD8xl96mSP2cgACMUawflV0M7VwoU8zHGig7L8N5wVA=; b=WeEfJWD3K5UYY+Lri9XWZQd8WhjX4JYg3s2LjGlev6sKXzn3iNtPMXA6HYa17A6rXaDryu UCa2O+59zREsghDsrney3xDZ6SBRE8PXEzyo593+hqPU0vsT8/jD0dDz07BJAjpyntRyMd T773PQ1AsHiBfbAdRipq6jiHVHBD03Q8wxvYeW+WudV6XylP+hx3U6CniLGgD6Ba/vsJTi p/K1HK9EeCcwIw5TIj5L1fPDWYXleHOAvoZv2tF8R2A+lc0qlgnqbvjdW+FEnTLufVEdzs EwhQQ645hE9gcf1YrORIyiIdat9THvN0Ac0ekhk6gzkmJqrdM4Pjw+AlDN5AFw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1784800833; a=rsa-sha256; cv=none; b=gRxtVPL9Qxqy61gbf3agSiDEW1NhZcVQ0FP4gKLHmbKG40c25SCHgU+Wn0QJgA+ddBC/CI J4t++nxzrN3rVWQt3TY7U4A4oF6FStE6k6JSoBROauJhfJbHJJoBpuLPzAIi9LcI1JuXEo IfM8WhYoQiuQtF+UHnXkKaE9k4Hxp+CPuCq1squIcE5k5s/T8+HNVSTSGexNM5bbjXrOyG MqvA3pxkWk46aedV783bawphJ77XpCauAcTMrwFunmVuwkMCthUBetmrqGd2KeWirYC+GA oGusZD65R++fqGFQxwMhAFbWbwH515wXt93wSxb35V3HnNjNuO/pIGxlpOOBhg== 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=1784800833; 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=FD8xl96mSP2cgACMUawflV0M7VwoU8zHGig7L8N5wVA=; b=qH+1jSYH7/fSCN0NXLU8Ao3hQs0P0xG8wBhsOSijqUwN+l42NEaFDbgki4cMbxI42hadeP aDh4S2G8oUHdenTdzFD0cRdgVrmXBjchItRn00E0XJkPgfUBOne470GIMYJ4eB1UGV5Qxe IiQMhj9ezKFJRxXgmJv2FKqhyg/K64ZEaZ5G+YpJmpWqSnd0koFyCtn3W53U9WXBe1lJq+ KAxwmOxfVQ9DO4wAwmd7lkbs+D9KefYB8zWA37cJImcj1AJFlZngoNKo/xHAzdU7tWC6we 61HaqvlrnGLYvsZBsO7lDGuCMxUxo1DMx5JVWeih57TtnSOe4SpAR5IpJbpyPQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4h5RSx4ryFz10dq for ; Thu, 23 Jul 2026 10:00:33 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 3cab9 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Thu, 23 Jul 2026 10:00:33 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Olivier Certner Subject: git: 304d7fcdf48a - stable/14 - kernel dump: dumpsys_gen_pa_next(): Fix "no more chunks" condition detection List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list 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/stable/14 X-Git-Reftype: branch X-Git-Commit: 304d7fcdf48a8bb89e6c0195db9bb7b0a2a6ea18 Auto-Submitted: auto-generated Date: Thu, 23 Jul 2026 10:00:33 +0000 Message-Id: <6a61e641.3cab9.503e5e1@gitrepo.freebsd.org> The branch stable/14 has been updated by olce: URL: https://cgit.FreeBSD.org/src/commit/?id=304d7fcdf48a8bb89e6c0195db9bb7b0a2a6ea18 commit 304d7fcdf48a8bb89e6c0195db9bb7b0a2a6ea18 Author: Olivier Certner AuthorDate: 2026-02-04 13:04:20 +0000 Commit: Olivier Certner CommitDate: 2026-07-23 09:59:02 +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 (cherry picked from commit 7e5f4bb3a1c999d1893528faa75559f37365de47) --- 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 a3ca716b2861..51bdb86e229b 100644 --- a/sys/kern/kern_dump.c +++ b/sys/kern/kern_dump.c @@ -83,7 +83,8 @@ 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); }