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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-36b36862549sm14194974f8f.106.2024.07.30.02.40.23 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jul 2024 02:40:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1722332424; x=1722937224; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=2hTb07T/lHUckLF9pRQZzZ733VhUGgQBsCLUx7kwgYc=; b=iqS8Xpws2CoA+TwvDX8+LigcHyYvEFkNraE3ZayKDHJT5r8Dklzx2cRQLfEr5vNjaq p02m8CBFrbyup1G5TDUiGZQs9Gtu+YE3OWB4j8y/Ywvc3jwMmRbEtWRQugQGKYf1HUpQ SrlBFUPYZfsMfN31dffih9Vey24CGoRLLS+ScrK6UTj9HpaDsWyO5O+2M5Wr/jDWxqWP UIgLCdwbuX5x/gopL/X2ZCYspnb1ScX9WSEmPaQHi90EJJDasEsM/7JxOJHrweM8gkqZ 7jX1/CrHfehu295kL+PDBvgVCjpogQepTEu/t6XaMtEcCbSHnqfbHvbf1BrvfBafX/ba k/2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1722332424; x=1722937224; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2hTb07T/lHUckLF9pRQZzZ733VhUGgQBsCLUx7kwgYc=; b=uZyPmJTZUM3RHQP/wf7bl2i3ec8j1d2yEWQmFV/a5QIBzRl5fSZVACWAvCj+CLGEEW hsYvdIOGVVwhDFuNF6CA95td9M2SgN3M5WcXnFLmtXuISW5BYq1krwMqG2CwNGy5HzX2 Z3W5aWoBokRul+nsF/2n1E0SskSoeei1utWP1opJrPKL7TbMPUJ/Nx3mvxGVyi0ED6jw qCxgYFqYpcm2c/OdCO5JWj9SXCVgHHun6vLZcN5WHdp0KsK28g02e04UWYeiDvqTLEOI vOAjGTV+GfXn8bZqPgllspIrr4sd1+EJ24sJEu5OfHo1oXrBQWsthqOtJfquceafnPdm cUdQ== X-Gm-Message-State: AOJu0YyJBk4RLtdJQU8LNUzM30OobzmqGMKsOSXBIUXaGQgILMPvr6x8 DH+4c1zmZpOMJ37xCmPWlm8wmEQZiZo7/GJwoZQ2T7eU8ez0PwGctz3AKDn8sn/7Ns7K5B1J04t S X-Google-Smtp-Source: AGHT+IH0l9SaoMYKqRC50b7VqcyLkdhJssvyjTnNLoEqGCVEhpzPbh4mrdx1ZAXJj4P7g4PhTGH99g== X-Received: by 2002:a2e:87d5:0:b0:2ef:1c0a:9b97 with SMTP id 38308e7fff4ca-2f12ebcaea9mr74174751fa.3.1722332423812; Tue, 30 Jul 2024 02:40:23 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 02/21] hw/arm/smmuv3: Assert input to oas2bits() is valid Date: Tue, 30 Jul 2024 10:40:01 +0100 Message-Id: <20240730094020.2758637-3-peter.maydell@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240730094020.2758637-1-peter.maydell@linaro.org> References: <20240730094020.2758637-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::235; envelope-from=peter.maydell@linaro.org; helo=mail-lj1-x235.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1722332456443116600 From: Mostafa Saleh Coverity has spotted a possible problem with the OAS handling (CID 1558464), where the error return of oas2bits() -1 is not checked, which can cause an overflow in oas value. oas2bits() is only called with valid inputs, harden the function to assert that. Reported-By: Peter Maydell Signed-off-by: Mostafa Saleh Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Eric Auger Message-id: 20240722103531.2377348-1-smostafa@google.com Link: https://lore.kernel.org/qemu-devel/CAFEAcA-H=3Dn-3mHC+eL6YjfL1m+x+b+F= k3mkgZbN74WNxifFVow@mail.gmail.com/ Signed-off-by: Mostafa Saleh Signed-off-by: Peter Maydell --- hw/arm/smmuv3-internal.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hw/arm/smmuv3-internal.h b/hw/arm/smmuv3-internal.h index 0ebf2eebcff..b6b7399347f 100644 --- a/hw/arm/smmuv3-internal.h +++ b/hw/arm/smmuv3-internal.h @@ -599,7 +599,8 @@ static inline int oas2bits(int oas_field) case 5: return 48; } - return -1; + + g_assert_not_reached(); } =20 /* CD fields */ --=20 2.34.1