From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 890B17469 for ; Sun, 17 Sep 2023 20:24:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BA8D4C433C7; Sun, 17 Sep 2023 20:24:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694982243; bh=oMz2BO8Z3qW9I3LMJSvM8ZXVHk+067gALo5tid38oOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lqkoz9P1Vo/xfViyM4VLbwjmhw5Jbc5BrUnk9Jw5Pg5aqq9Bag0GiBjWlrt7GvLxd yebflR1KcujtRW32za0yOQPv1ZND0VzbWpTDyi2+T4NJiBt8/cZyNEEKwLWU4OBl6+ nuxrhB0jBILFJaxE6/DV0UFo1PmxSfL9JRci9SOo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Corey Minyard , Sasha Levin Subject: [PATCH 5.15 194/511] ipmi:ssif: Fix a memory leak when scanning for an adapter Date: Sun, 17 Sep 2023 21:10:21 +0200 Message-ID: <20230917191118.505034149@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917191113.831992765@linuxfoundation.org> References: <20230917191113.831992765@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Corey Minyard [ Upstream commit b8d72e32e1453d37ee5c8a219f24e7eeadc471ef ] The adapter scan ssif_info_find() sets info->adapter_name if the adapter info came from SMBIOS, as it's not set in that case. However, this function can be called more than once, and it will leak the adapter name if it had already been set. So check for NULL before setting it. Fixes: c4436c9149c5 ("ipmi_ssif: avoid registering duplicate ssif interface") Signed-off-by: Corey Minyard Signed-off-by: Sasha Levin --- drivers/char/ipmi/ipmi_ssif.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index 87aa12ab8c66f..30f757249c5c0 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -1414,7 +1414,7 @@ static struct ssif_addr_info *ssif_info_find(unsigned short addr, restart: list_for_each_entry(info, &ssif_infos, link) { if (info->binfo.addr == addr) { - if (info->addr_src == SI_SMBIOS) + if (info->addr_src == SI_SMBIOS && !info->adapter_name) info->adapter_name = kstrdup(adapter_name, GFP_KERNEL); -- 2.40.1