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Thu, 07 May 2026 04:04:09 -0700 (PDT) Received: from localhost ([103.74.250.37]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c8253b493c5sm1835163a12.28.2026.05.07.04.04.09 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 07 May 2026 04:04:09 -0700 (PDT) From: Jiazi Li To: Kees Cook , Andy Shevchenko , Ping-Ke Shih , Julia Lawall , Nicolas Palix Cc: Jiazi Li , linux-hardening@vger.kernel.org, linux-wireless@vger.kernel.org Subject: [PATCH v3 0/3] Add str_alloc_free() helper Date: Thu, 7 May 2026 19:03:02 +0800 Message-ID: X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Currently finds 4 locations: ./drivers/net/wireless/realtek/rtw89/fw.c:2557:7-12: opportunity for str_alloc_free(valid) ./drivers/net/wireless/realtek/rtw89/fw.c:2693:7-12: opportunity for str_alloc_free(valid) ./drivers/android/tests/binder_alloc_kunit.c:196:6-21: opportunity for str_alloc_free(alloc -> pages [ i ]) ./mm/slub.c:1634:3-8: opportunity for str_alloc_free(alloc) Patch 3 is based on https://lore.kernel.org/linux-hardening/CAHp75VdHY814NRfyUfWeqRd4-DwYzHGh25OTsUB5EFpRKpVQLQ@mail.gmail.com/T/#t. --- Changes in v3: Add first user for this helper v2: https://lore.kernel.org/linux-hardening/CAHp75Vdvdr0TPzuDDPSoJ4Nixk-6qO_x6Or9iY9LNwSO1Q6mHg@mail.gmail.com/T/#mfb405519f7b3a06f4fcaa8e5a799da5299d9ee85 Jiazi Li (3): lib/string_choices: Add str_alloc_free() helper wifi: rtw89: Make use of str_alloc_free helper coccinelle: Add rules to find str_alloc_free() replacements drivers/net/wireless/realtek/rtw89/fw.c | 4 +-- include/linux/string_choices.h | 6 ++++ scripts/coccinelle/api/string_choices.cocci | 38 +++++++++++++++++++++ 3 files changed, 46 insertions(+), 2 deletions(-) -- 2.49.0