From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F4B51E8326 for ; Thu, 29 May 2025 11:20:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748517602; cv=none; b=GX+wZLcimMT97lcpwpCaAg7fPPCUUdy0wH69Yqy8N5NrA/09yXe3wcAbjryV+/dlhJOOUoR1sI7xjlEa9s+JCHDaKQqwfnM0EM8ifD+/4lTiM+t9dX6wOZBFLYqr6ZJmTW6okotHrzBSM+qL0tFPMv1rYg5docD/4y+31vbEleM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748517602; c=relaxed/simple; bh=89y8D4rwA3MEW8Pj8AM+flbekvONQziAv+MRWWa2uYw=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=qlQ+NZmWkjv3w8c6nP/dFSHWepH83wi/7tLvWvOvUilZ1l8xopI2tKA51f1U8cGYQaBBClh3QAPAsQ7eX3Kd2fAvADgQqlVrYJyvl8Yx1yiZwWpfo4d2P+y9bXKWO7NQOONeSCktRn8Rw2JDh8wVlusTwws9T/yx5eahkcnyRD0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=none smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.93.142]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTP id 4b7P5v6x0Hz4f3jcr for ; Thu, 29 May 2025 19:19:31 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 50F451A0AD6 for ; Thu, 29 May 2025 19:19:57 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.101.107]) by APP4 (Coremail) with SMTP id gCh0CgDXOl_bQjhoyeN8Nw--.171S4; Thu, 29 May 2025 19:19:57 +0800 (CST) From: Ye Bin To: rostedt@goodmis.org, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, mark.rutland@arm.com, linux-trace-kernel@vger.kernel.org Cc: yebin@huaweicloud.com, yebin10@huawei.com Subject: [PATCH v3 0/2] fix UAF when lookup kallsym after ftrace disabled Date: Thu, 29 May 2025 19:19:53 +0800 Message-Id: <20250529111955.2349189-1-yebin@huaweicloud.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:gCh0CgDXOl_bQjhoyeN8Nw--.171S4 X-Coremail-Antispam: 1UD129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UjIYCTnIWjp_UUUYc7AC8VAFwI0_Gr0_Xr1l1xkIjI8I6I8E 6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28Cjx kF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8I cVCY1x0267AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2js IEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE 5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeV CFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1l 42xK82IYc2Ij64vIr41l4c8EcI0Ec7CjxVAaw2AFwI0_JF0_Jw1l4I8I3I0E4IkC6x0Yz7 v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF 1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIx AIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI 42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWI evJa73UjIFyTuYvjfUoOJ5UUUUU X-CM-SenderInfo: p1hex046kxt4xhlfz01xgou0bp/ Diff v3 vs v2: (1) Only release 'mod_map' resource in ftrace_release_mod() when ftrace_disabled. Diff v2 vs v1: (1) Add description for PATCH[1/2]; (2) Move judgement from ftrace_free_mem() to allocate_ftrace_mod_map() Ye Bin (2): ftrace: fix UAF when lookup kallsym after ftrace disabled ftrace: don't allocate ftrace module map if ftrace is disabled kernel/trace/ftrace.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) -- 2.34.1