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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id l3sm4309731wmg.32.2020.11.06.09.58.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Nov 2020 09:58:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=nI/5gcnCT3HsTfKHFyeC112QzZCXDG18lh1rraNrqw0=; b=jn1+LWeaZC+q2WWd+6elW+vJkNbRf5GYnfpWpbpMGSV6YwNG0Wv27wcI/EogKtn78C C5YnwbRlNs00wbYwDjhal9o1RSKQgg50t2p+zx/5rv6TUQ/ifm2q18M9Z9Sl60/eoyo5 sUbpIpGhDWO9l+L3mjr0+fPT10HX+KU7183JUqhvFPuMz5IHkHVp7uJ2jSZW/GSBWWSO nDJ6aEVIR3z77fVPYivLsO+qoHhsl1XU2Bn9GP0KpT2vg/xj9/wyi9Q2zvF3nhRNlxsY LnY888o76ggkXqNesUNN2s9dc8qSV3SE8XRSuTil2go9NbvtN6Bn080yxKHvm1yjCr1w W68w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=nI/5gcnCT3HsTfKHFyeC112QzZCXDG18lh1rraNrqw0=; b=A2vnribIcFWPQOKlu60o+T1+AqSC600qT26CUNcBJd3u2wAOsnjFUjAT2IaLuCGI/9 mvxT4sq9tVNpjImYILOV5JksUH3KVJx1JKzkZthKxLTvf7H+5V3UPnCQmAL9tyyEA9c2 2t/mc0alWgatW/ofemh4EEjMm3QtvHPA2/Qrc4Lp8RYnFfq1SeajWWzq0I1L4p9gkQFL icCxN7oSd15c1RNoKZ+2p/VOEt08/K+P0taPuh+/TcmG3Vm9+kLIKQbwKwQQo/OzF9RI 2mj011Ujn2rL/K7PGhBkPpFIFZshhozmABwbbX2exf5ausbMht/AxJiQQYs1FTNhqyer ZLew== X-Gm-Message-State: AOAM530IiCZ6IG4HS8qDRi9IZJ0/WBW8L0DqyQdFaHsA4fWVfqBU2J38 o4CJQ4oxUrF+O+92G11pblcXZivqSGxUSA== X-Google-Smtp-Source: ABdhPJw3Qx+3BlkcyvTaeKq3xiScfC5Q2Hccu+Dm78tFttwLKzkpIL5Eq0JoQEly7ymLsGIGXQtaxw== X-Received: by 2002:a5d:694b:: with SMTP id r11mr4036192wrw.104.1604685505525; Fri, 06 Nov 2020 09:58:25 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PATCH for-5.2] hw/mips/boston.c: Fix memory leak in boston_fdt_filter() error-handling paths Date: Fri, 6 Nov 2020 17:58:23 +0000 Message-Id: <20201106175823.1650-1-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 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::444; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x444.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paul Burton Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Coverity points out that the error-handling paths in the boston_fdt_filter() function don't free the fdt that was allocated. Fix the leak by using g_autofree. Fixes: Coverity CID 1432275 Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/mips/boston.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/hw/mips/boston.c b/hw/mips/boston.c index 3356d7a6814..3d40867dc4c 100644 --- a/hw/mips/boston.c +++ b/hw/mips/boston.c @@ -349,11 +349,9 @@ static const void *boston_fdt_filter(void *opaque, con= st void *fdt_orig, MachineState *machine =3D s->mach; const char *cmdline; int err; - void *fdt; - size_t fdt_sz, ram_low_sz, ram_high_sz; - - fdt_sz =3D fdt_totalsize(fdt_orig) * 2; - fdt =3D g_malloc0(fdt_sz); + size_t ram_low_sz, ram_high_sz; + size_t fdt_sz =3D fdt_totalsize(fdt_orig) * 2; + g_autofree void *fdt =3D g_malloc0(fdt_sz); =20 err =3D fdt_open_into(fdt_orig, fdt, fdt_sz); if (err) { @@ -380,7 +378,7 @@ static const void *boston_fdt_filter(void *opaque, cons= t void *fdt_orig, =20 s->fdt_base =3D *load_addr; =20 - return fdt; + return g_steal_pointer(&fdt); } =20 static const void *boston_kernel_filter(void *opaque, const void *kernel, --=20 2.20.1