From nobody Sun Nov 01 22:08:36 2026 X-Original-To: dev-commits-src-branches@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 4jHprN2RJ0z6y2dq for ; Sun, 01 Nov 2026 22:08:36 +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) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 4jHprN0pKrz4jfX for ; Sun, 01 Nov 2026 22:08:36 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1793570916; 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=FcKP0QgrNz5WDnvvvIXXgy/KxlGFcaABfO79h0Auz5U=; b=xTmr3aUpH4/eZcidIGQxSzg0P3u2elZzym5/+LyH4+HEOG0fvH3zLmyQpwMOtqmLvOdqyV ennZpHR5+Ji+l1wuwpyXvKbsNfiobkktXTZJSjRN+XAV9/qsqoeXqc6ItilMx3wuAEzSfR +mCYvyd+YzrS6DCISvQn/y4B+HTGf9wF4STbxxUT+marBNXWLtYERo5VsB0Wd0sC6OKy9j s8llTN/ggPQhRCKOtvy4Rcz3S2tTRaUvaX4tHf47gTr0sf1B1mAHYlkEgCuIQgtreLTtec BfDg7XESF8/biWYNIuqsVSAVVJdJtK0UWC/CeDcuF/8ODO/RGtEio2D8pAS4bg== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1793570916; b=DdyjWT8eYmj9AVxCXZGHOGd0mWkXp2W/zfNjp7RUrQJ4R6VC5KMudMbAPGJgdVqbiRmOtt 28+J5kDZwf32Sow7zuAPT7hKL/s7cNkP4sKm7m0XyKSlMsS0+vT3hnwzerDWNBsRBWMMGZ o844m+O3jD2NKozJK6iQG5LtpfSBuV5xcliqtUs9pZJgFhsCNqKdWrW9yXCQ7ZRI34eGjO i1+AHh/UeIdF+UCA1AgvD+ZrjvG2pXl6NTuHE0MYoY5TY6QAVQkPyU0ntLQTyKYw3gLh6o E3ikzMKkRWUjALbcR/9MtztaBszxrQoxuTr7E1Z7KGq6eE+R619A1j74U8/HoA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1793570916; 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=FcKP0QgrNz5WDnvvvIXXgy/KxlGFcaABfO79h0Auz5U=; b=XNbI57yzc6IixrYzwHaMlGA+4TgntGjbhuqSBirqk8SyCZQ9bYSmQ3nwUGUfNYUyNRCMsA 2TK/BumMkIPfj2aSfYX+4YVeSyvlt5ehPqGR8DGZnxwDDep715R4M8Uiwl3y8kUAm/p746 datEOCMnGC9UT0OW5jqzy+RbYTK5+PfUJijdBEfAtYBk8aRB7caZlS0532r8MyJhiuZ4Pw Asch0585iiErZCE7ZdCA8WuUc2RriMNA8bXSy7MPl8iHJ1/qs9yTxAGYm6/9Y2LoXd1hrH AsG7gk1sRzhX/wltm8PrY2mVnVyBACFDek3GJaWu3iC9c1HI1/G8FOBwL/ZGdw== 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 4jHprN0SmkzGwQ for ; Sun, 01 Nov 2026 22:08:36 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 43000 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sun, 01 Nov 2026 22:08:36 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: ShengYi Hung Subject: git: 6b597a9470ad - stable/15 - uchcom: Set rate to 1 if 0 List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org List-Id: Commits to the stable branches of the FreeBSD src repository 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/stable/15 X-Git-Reftype: branch X-Git-Commit: 6b597a9470ad3d31b2014ae2380a12dda5181818 Auto-Submitted: auto-generated Date: Sun, 01 Nov 2026 22:08:36 +0000 Message-Id: <6ae7b864.43000.1efbde2f@gitrepo.freebsd.org> The branch stable/15 has been updated by aokblast: URL: https://cgit.FreeBSD.org/src/commit/?id=6b597a9470ad3d31b2014ae2380a12dda5181818 commit 6b597a9470ad3d31b2014ae2380a12dda5181818 Author: ShengYi Hung AuthorDate: 2026-09-26 06:42:39 +0000 Commit: ShengYi Hung CommitDate: 2026-11-01 22:07:40 +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 (cherry picked from commit 228b1a011660ee1005bc4ab7c97113af8d87fe5c) --- 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) {