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([110.9.142.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2c42f2e535csm69043585ad.6.2026.06.14.06.38.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Jun 2026 06:38:15 -0700 (PDT) From: Sang-Heon Jeon To: robh@kernel.org, saravanak@kernel.org Cc: devicetree@vger.kernel.org, Sang-Heon Jeon Subject: [PATCH v2 0/2] of: reserved_mem: fix OOB write and name skipped nodes Date: Sun, 14 Jun 2026 22:38:05 +0900 Message-ID: <20260614133807.2165124-1-ekffu200098@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Patch 1 fixes an out-of-bounds write in fdt_scan_reserved_mem(). When more than MAX_RESERVED_REGIONS dynamically-placed regions are defined, it writes past the end of the local array. Patch 2 names the skipped node in fdt_init_reserved_mem_node(), the other place that drops regions. Changes from v1 [1] - fix bounds check to cover the missed case in v1, based on sashiko review - print skipped no name error message in fdt_scan_reserved_mem() and fdt_init_reserved_mem_node() both. [1] https://lore.kernel.org/all/20260603152709.941788-1-ekffu200098@gmail.com/ Sang-Heon Jeon (2): of: reserved_mem: prevent OOB when too many dynamic regions are defined of: reserved_mem: print skipped node name when too many regions are defined drivers/of/of_reserved_mem.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) -- 2.43.0