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Wed, 9 Sep 2026 06:18:49 +0000 (GMT) From: Madhavan Srinivasan To: Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Sourabh Jain , Hari Bathini , Aditya Gupta , Jinjie Ruan , Andrew Morton , Thorsten Blum Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] powerpc/kexec_file: Use inclusive range checks for excluded memory Date: Wed, 9 Sep 2026 11:48:48 +0530 Message-ID: <178893459271.174069.12910729821958749066.b4-ty@linux.ibm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260810145827.157972-3-thorsten.blum@linux.dev> References: <20260810145827.157972-3-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: CpAz1mZVupbDZGSPGVzRlX1b2f3mizfV X-Authority-Analysis: v=2.4 cv=RIaD2Yi+ c=1 sm=1 tr=0 ts=6aa0fa53 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VwQbUJbxAAAA:8 a=Nnc9RaRy9hPcq58hLzkA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA5MDA2NiBTYWx0ZWRfX3RGrnNvVdINF kZLF5c3xmJtHSqaBm4Ujm97a/9dCY57IH4k8Q8HFH5Di7yv8MgM0waQm+uEB/jVHKCkhrDzxwVJ 8szy/4SnYsfju21fnjDSWZAB44rOkcI= X-Proofpoint-ORIG-GUID: 9WRSbRZRiPTMfSyEVrMVvw-MfhX8YO6l X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA5MDA2NiBTYWx0ZWRfXwq3KtZcuVdWF 2pO8FrODDzwFeMMas608ZV2uFucJuNn1jfCBM/O9LC7+hXuqfJMSiy2CDhaJpP3e15oeLZnfGhJ OGxLaDwgy3w8a7QP5nrkrariw68xaUEwK8QSZuCXPFXF2iTRL9M0blN9XPoULH5JB84PSc+PxJP DlAaYpt2+mpT8gJzeLHqUJCQarGjG9i0RcDQL9MGsmmEz0hxZrC3D7BzBnfpZiMVyrDsPbUvdIM 9K7cPAi7Y3BPngoVhhPpbSQCGzIuxkgwXRQnlfPkh4cH3XSKjwQP8Pnt4D96+gYjqC5pep3AtWQ WxdJgEQkMHbF3jBaEH60fbBmsmWLl+GleiAhK4IcNzoWBnn5x7RWHSlzRuvdcy4R0E1U41MtHev fz8x0TzH8ReD8Tsu9cxWxz+cGXeQf/UdQwsvpl/NGoImQ+IQyBzSoI9TA7PFivTQGvlqPhVwBHh J0ZiPq4fbACC0BiLf3w== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-08_03,2026-09-08_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 adultscore=0 phishscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609090066 On Mon, 10 Aug 2026 16:58:27 +0200, Thorsten Blum wrote: > arch_check_excluded_range() checks if a kexec segment overlaps an > excluded memory range. > > Both ranges use inclusive end addresses, but the overlap check uses > exclusive comparisons. This skips ranges with start == ->ranges[i].end > or end == ->ranges[i].start. Use inclusive comparisons instead. > > [...] Applied to powerpc/fixes. [1/1] powerpc/kexec_file: Use inclusive range checks for excluded memory https://git.kernel.org/powerpc/c/449f60f99f8f3cbe80a9bd2242945e827c5ed003 cheers