From nobody Fri Dec 26 15:22:58 2025 Received: from mail-il1-f177.google.com (mail-il1-f177.google.com [209.85.166.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 126132C694 for ; Thu, 4 Jan 2024 19:42:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b="scGTid8T" Received: by mail-il1-f177.google.com with SMTP id e9e14a558f8ab-35fff22678eso2957615ab.3 for ; Thu, 04 Jan 2024 11:42:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1704397376; x=1705002176; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=tLVjvsKzWbuu1Tn6vfa7DAnWzdMErwoBxrG3TwM6ilc=; b=scGTid8TC9aU85cSvQWjhr6iMX92QpCxJd5CcTAEise3S4nqV7VS3tV1S8XsEC5LHf 9Ykh9FF3W3gD4HQA+1mFenYHP8ttY8i70H8IJEUIxubTCq5F1HN+yx2u7PP15ziLiG3N DCqfO1aB4uEU8tTZTBRcXKRBNSvqQkjfA2bfiXoW10vMpLlzL73Hny8YjBgWS4z2ABs1 5IfUU34xU8UAtkQLuQqiUe/MHnznUiY4JDPd6jkoDx4Edkl3M2m5PoS8v+SQpzSC0EkM ymmNFblI7ZH8gvvquStOyiYr6HH1rIFposkHIq8jlwjXWZC8shPNpmjNraRfpTa/YN2N w1Lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704397376; x=1705002176; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=tLVjvsKzWbuu1Tn6vfa7DAnWzdMErwoBxrG3TwM6ilc=; b=vdjlQ9fjv8+iZ4I6miOxo9xKFL4PRSq1bNLF0MGYXss+lDgS/12/+5RBuHjxhdmzVW QGoQy+sfJDo86mD/1JveGgs+OXffD9SmGj5cwpasMbszGpY2ZmTNHKguP5MIWgMQoZ6N 0h7y3G+FVxWQMQ+cGPUV9xsoqfRwzXMulYWVDfShs2V8SVmdMuviY0GzdmFAYrqWdO8I VYrqO+BngDV9ODZINOTh0T/RtxaqPt3gPMGl9KLY4tUudadrkTBfTBMzUoBzJhWGadjx s79LJUbDjnH2/P6cAj13AMM+2irVR+euZifzZ4xfzhZTAEMuCqLPoUp2lXEJLKrx7LR3 dYiA== X-Gm-Message-State: AOJu0YyN08mo4v+ZS+O8SiNKp0oOodIYaGfm4Uur+GQeDzNcgHTVWibH s7qAAU9+Ihl6VMJy/oUNNZRMIDjPTTn9Uw== X-Google-Smtp-Source: AGHT+IFm+qeZXnh4PvWyj6eeezVL805LTax37/sq68iQqd8SUNlSbsETWbuY1iXc3g3AU1sH94b8XA== X-Received: by 2002:a05:6e02:1be9:b0:35f:e306:cc2d with SMTP id y9-20020a056e021be900b0035fe306cc2dmr1172109ilv.32.1704397376337; Thu, 04 Jan 2024 11:42:56 -0800 (PST) Received: from charlie.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id o10-20020a92daca000000b0035d0da89a0asm19606ilq.6.2024.01.04.11.42.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jan 2024 11:42:55 -0800 (PST) From: Charlie Jenkins Date: Thu, 04 Jan 2024 11:42:47 -0800 Subject: [PATCH v3 1/3] riscv: Fix module loading free order Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240104-module_loading_fix-v3-1-a71f8de6ce0f@rivosinc.com> References: <20240104-module_loading_fix-v3-0-a71f8de6ce0f@rivosinc.com> In-Reply-To: <20240104-module_loading_fix-v3-0-a71f8de6ce0f@rivosinc.com> To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Palmer Dabbelt , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Charlie Jenkins , kernel test robot , Dan Carpenter , Julia Lawall X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1704397374; l=1064; i=charlie@rivosinc.com; s=20231120; h=from:subject:message-id; bh=ChQMN8HXWHXJl0z5+9ukmO+5sTC3VuwHdA0xAgdz31A=; b=Nc7YMdNtkiogT9SuSOwkwklZUSWSzuGSMVWI6Jj/7Ki7kHxfugbk8U/yTQtvOO8OlVcnpSpoY O5QMhR5H1UfAHoQ8EspkwAbM3BL/hJ40b6H9Oys/ELv92VYszOq6yck X-Developer-Key: i=charlie@rivosinc.com; a=ed25519; pk=t4RSWpMV1q5lf/NWIeR9z58bcje60/dbtxxmoSfBEcs= Reverse order of kfree calls to resolve use-after-free error. Signed-off-by: Charlie Jenkins Fixes: d8792a5734b0 ("riscv: Safely remove entries from relocation list") Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202312132019.iYGTwW0L-lkp@intel.com/ Reported-by: kernel test robot Reported-by: Julia Lawall Closes: https://lore.kernel.org/r/202312120044.wTI1Uyaa-lkp@intel.com/ --- arch/riscv/kernel/module.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index aac019ed63b1..21c7a773a8ef 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -723,8 +723,8 @@ static int add_relocation_to_accumulate(struct module *= me, int type, =20 if (!bucket) { kfree(entry); - kfree(rel_head); kfree(rel_head->rel_entry); + kfree(rel_head); return -ENOMEM; } =20 --=20 2.43.0