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([163.239.22.29]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3726561851esm10154026eec.4.2026.11.08.20.42.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Nov 2026 20:42:28 -0800 (PST) From: hyunjungg To: Sebastian Reichel , linux-pm@vger.kernel.org Cc: Sebastian Reichel , Chen-Yu Tsai , Matthias Brugger , AngeloGioacchino Del Regno , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Hyunjung Ko Subject: [PATCH v2 0/3] power: supply: fix work-vs-devres teardown use-after-free Date: Mon, 9 Nov 2026 13:42:09 +0900 Message-ID: <20261109044212.1157357-1-hj351016@gmail.com> X-Mailer: git-send-email 2.43.0 X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261108_204229_896811_A349FDC9 X-CRM114-Status: UNSURE ( 9.04 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 From: Hyunjung Ko Three power-supply drivers register a poll/detect work for devm cancellation before devm_power_supply_register(). devres unwinds in reverse, so on unbind the power supply is freed before the work is cancelled, and the work's power_supply_changed() then dereferences the freed supply. Each patch moves the devm work-cancel registration to after devm_power_supply_register() so teardown drains the work first. No functional change. v2 (thanks Sebastian Reichel): - trim the commit messages down to the bug and the fix - drop the inline comments - no code change vs v1 other than that comment removal Hyunjung Ko (3): power: supply: ltc2941: drain poll work before unregistering the supply power: supply: axp20x_usb_power: drain vbus_detect work before unregistering the supply power: supply: mt6360_charger: drain chrdet_work before unregistering the supply drivers/power/supply/axp20x_usb_power.c | 10 +++++----- drivers/power/supply/ltc2941-battery-gauge.c | 10 +++++----- drivers/power/supply/mt6360_charger.c | 7 ++++--- 3 files changed, 14 insertions(+), 13 deletions(-) -- 2.43.0