From nobody Sat Sep 26 06:45:12 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 4hsJ3X2pDwz6tQ2J for ; Sat, 26 Sep 2026 06:45:12 +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 "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hsJ3X17vQz3P4w for ; Sat, 26 Sep 2026 06:45:12 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790405112; 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=3q1/WFbgNReIgZNzY4oqMzXICtC+XPrrmYPNVzmooYg=; b=QIjx3lsAAMQkUbF4z3KSE9ndyOC95M5DQrOgv6PYobO4XYKOfsNmQgh89KVeQrcMx6cCYh baDa+GjRi2qJF0LCkfjEY0L1pUZJAeRH/8sAyde23AJojroI2T3X53ZfqBHHSN6zi6NCPV G3CwbYBreUeLg1lB5eXQqt5CjxqG1lOx4HzvpjNCxed28LkDq3eu8jDkqskJ6bl9VuhQZ+ h5CYkMrbZ9h9udnZwOH8qwjCU7OGUh/ndgdZLp6YvAbuzAykDzQolt9oTSjNETWVaO5HJy ZY4A4jJrzwyHym9elLG+eE8UDFmo5dGIl7VBvfRa0OkdOWtD6E3d8aMmvN5JUw== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1790405112; b=IGSxIh1P9nkL9vu3Tf6/NR/n0aMxVw07RMRFdOoRqxPHGyE+9CCwitHbsgE2yhluHr30dP qzri0F3cj+EDrEFDJq36wNbnplLi4AKy+RZDiHEL7oA92ExXgwbeQ0km6VGPOpCZcEUQiD uve65SRKCWSGwZIuopPYZrgVr7v73cYFvCWfvJIyyatxd8JNwdU6LUeyon8y56xXO3Kh+Y NRNC8cfziusWO/nSM+qqnBitJD1JVY/nmVLDT91Ze68T2I+cpJX9w+lD8UYn7bR0R/B9cd bqdxbgnbZzoFOCCXNdCoe1UNvxwxGE+FkEB6flDHQItEKjdfOK6WLjqHCBIVIQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790405112; 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=3q1/WFbgNReIgZNzY4oqMzXICtC+XPrrmYPNVzmooYg=; b=T1SLWXrPxmiYejADad/jUW5CGiFNSZqSAANMoB9KC9uLKNdrRQ72+oDoYv63IETzYKWh9n Y9DMbPA8qCgtaAmkWjFubShI3VCtWiowZsxrpyLB9P85UdsGTaVTXl8L94vkmR0ME9jhgO 5tO5q3Sm/KhsBdrad2i3UmSYIeSpm9h5wYZudDNXptm8vTvjt4il+1vAuQ1urZeQnjA4Bu 69diY7kiLjgBDtLF7KNTEh8WXpiwXtqGlrztUe6+zeQUSbzrtpDCFmCFhWeW5nuOkGxzaI 36x9FS+5iQw7BN2bvb37yS1UHTi/l9RQKRYTdHjxLgSxzpfn8SFRBrBdvcElnw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hsJ3X08qFzmPC for ; Sat, 26 Sep 2026 06:45:12 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 347bf by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sat, 26 Sep 2026 06:45:12 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: ShengYi Hung Subject: git: 228b1a011660 - main - uchcom: Set rate to 1 if 0 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: aokblast X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 228b1a011660ee1005bc4ab7c97113af8d87fe5c Auto-Submitted: auto-generated Date: Sat, 26 Sep 2026 06:45:12 +0000 Message-Id: <6ab769f8.347bf.76e3ea4b@gitrepo.freebsd.org> The branch main has been updated by aokblast: URL: https://cgit.FreeBSD.org/src/commit/?id=228b1a011660ee1005bc4ab7c97113af8d87fe5c commit 228b1a011660ee1005bc4ab7c97113af8d87fe5c Author: ShengYi Hung AuthorDate: 2026-09-26 06:42:39 +0000 Commit: ShengYi Hung CommitDate: 2026-09-26 06:45:08 +0000 uchcom: Set rate to 1 if 0 If userspace provides rate == 0, it causes kernel panic as rate is directly used as a divident, which cannot be zero. Fix it by set the rate to 1 if it is passed as 0. Reviewed by: imp, emaste MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D59111 --- sys/dev/usb/serial/uchcom.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sys/dev/usb/serial/uchcom.c b/sys/dev/usb/serial/uchcom.c index ff1ac8897c90..d315b2d37c46 100644 --- a/sys/dev/usb/serial/uchcom.c +++ b/sys/dev/usb/serial/uchcom.c @@ -628,6 +628,9 @@ uchcom_calc_baudrate(struct uchcom_softc *sc, uint32_t rate, uint8_t *divisor, *divisor = 0; } + if (rate == 0) + rate = 1; + *factor = 256 - clk / rate; if (rate == 921600 && sc->sc_chiptype != TYPE_CH343) {