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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id 22-20020a17090a0d5600b001ef81574355sm2000341pju.12.2022.09.23.13.28.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Sep 2022 13:28:28 -0700 (PDT) From: Kees Cook To: Vlastimil Babka Cc: Kees Cook , Pravin B Shelar , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, dev@openvswitch.org, "Ruhl, Michael J" , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Andrew Morton , Greg Kroah-Hartman , Nick Desaulniers , Alex Elder , Josef Bacik , David Sterba , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , Jesse Brandeburg , Daniel Micay , Yonghong Song , Marco Elver , Miguel Ojeda , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-btrfs@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-fsdevel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, x86@kernel.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org Subject: [PATCH v2 10/16] openvswitch: Use kmalloc_size_roundup() to match ksize() usage Date: Fri, 23 Sep 2022 13:28:16 -0700 Message-Id: <20220923202822.2667581-11-keescook@chromium.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220923202822.2667581-1-keescook@chromium.org> References: <20220923202822.2667581-1-keescook@chromium.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1114; h=from:subject; bh=34QBkIPlID/8bnVmUZjxBAD5CQnxKEZULyryTOgjniU=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBjLhblCci+wGv8iOvuMA8kL10auMgCdSAnR8YUMoXu podrrfKJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYy4W5QAKCRCJcvTf3G3AJqB8D/ 4wCq8GoLp593BnoMNdwJoYvf4etLZwZGsXZQsb2VBiy0skIZlwiVr3PlOgTBYZgIzLvlvUxdUJ5nlX Bi7PnNee9K0Li5LxtO1cZdKiafC2g2Bwno2il0Lo40rZNh8zuXtHkOL9Ch6MatzIqZvHirzYXgdFYa kL+5yKCw2OQwWbSzxN2JM/vbJJUQqWo3IuvGbHZNr3neCmsRvYQL9SENnZqNlmEN0oWzba5MOArXOo /gL8NjrYcXMqpUjBsVYY3y9nJYmkYPHuf/2GpJoU3H8aNnc9kL8Pnb6DwPQil/tk64OQkt0b7ZcjrC G0P1WN75ngaL4hyDGzvdTSyhbfeaPY233mJqTfNH5oCljXV1jN8j7JHWKIlijEpvh+rgmsD8oUU7cT LaZlaPifCbnZzop1KYF9cjTfQ6B1FwHfcaDukW/X9RDudAeKfjA6FDVNBvMvz6dQzkfSaJU4YlVLat mUOaeTfq4RLXR/1FfCnYLeQzvwlAmM6D2JIyw+FADeIZXNcc0kh8AWEtFVPrlaFoC7ofIyB/PaclI7 AeUp4jht1HTcepzxMUGZ3tJxRqUFmKdqW/dmu2F5hihUeoxfrDraNFqeBygde5JGfInhtRyFE314eo nj0zrS6Q1+iCwTFGvr/2/6qclufX48XSB7HUF/kPBPaTwX4S6IGvnRi92exg== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 ARC-Authentication-Results: i=1; imf05.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=ZUb4dJcl; spf=pass (imf05.hostedemail.com: domain of keescook@chromium.org designates 209.85.210.175 as permitted sender) smtp.mailfrom=keescook@chromium.org; dmarc=pass (policy=none) header.from=chromium.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1663964912; a=rsa-sha256; cv=none; b=H1KY7ifUvpQT7uANn5ynRAPCiPyTOe3+4xGhZy6GBnx5fLEi9rQDyqaiUgQAPslmjQGTQz UODQcSe7c5knOSBgrPG90fC+HFa/v6ftF1lTnUmdgQfjT0flQuPmkIhy2VxIKpdY/qlA9T CPWMwxvGEVKpIUmDA7eA0MEcGGAXRSE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1663964912; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=X/Yo0q+LJh3/rts6UXiCkFsErG60vpqgZ/L53wodJpE=; b=CBEn8FVNhdjlo9D+FE7SgVB9fc1F7GDV1d+w5VLLuyB/o6vRP3Fl1RX/ZkZaz3U2gYrLnZ SfTCfQ6Y+Gi91qAVdBqrIcUXYYSJKlGBKoDfH5VxaetyT/+Bo0U1FSRTYSbC7b+ldhfYab iApL6Fh0w/Ej9OugHDXedPpGZQbcX4w= Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=chromium.org header.s=google header.b=ZUb4dJcl; spf=pass (imf05.hostedemail.com: domain of keescook@chromium.org designates 209.85.210.175 as permitted sender) smtp.mailfrom=keescook@chromium.org; dmarc=pass (policy=none) header.from=chromium.org X-Stat-Signature: 3r1ixxi3zskb9ffqi3g3s1zem3gg57er X-Rspamd-Queue-Id: 7387D10000E X-Rspamd-Server: rspam04 X-Rspam-User: X-HE-Tag: 1663964912-676792 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Round up allocations with kmalloc_size_roundup() so that openvswitch's use of ksize() is always accurate and no special handling of the memory is needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE. Cc: Pravin B Shelar Cc: "David S. Miller" Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Paolo Abeni Cc: netdev@vger.kernel.org Cc: dev@openvswitch.org Signed-off-by: Kees Cook --- net/openvswitch/flow_netlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index 4c09cf8a0ab2..6621873abde2 100644 --- a/net/openvswitch/flow_netlink.c +++ b/net/openvswitch/flow_netlink.c @@ -2309,7 +2309,7 @@ static struct sw_flow_actions *nla_alloc_flow_actions(int size) WARN_ON_ONCE(size > MAX_ACTIONS_BUFSIZE); - sfa = kmalloc(sizeof(*sfa) + size, GFP_KERNEL); + sfa = kmalloc(kmalloc_size_roundup(sizeof(*sfa) + size), GFP_KERNEL); if (!sfa) return ERR_PTR(-ENOMEM);