From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 408782BDC23 for ; Wed, 29 Jul 2026 03:35:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785296150; cv=none; b=qc9aYCtHpO8Xwcdhl/jJMu1413dwrU99H7aFTOtdm1g9XUHa2+rPI/0UlkjkeinGppcObShyWwFl+sCPUApPeLCJa5d8LQO9r+ymb+dxlgQjuWMWcHV6d2JaTRLf/TczQENe7mnAjWdQQ9wyg2erV0xK2ucBYwEIqZnxaLRdakk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785296150; c=relaxed/simple; bh=hv1BbaK9NYnr3/8WS8iJT3Sqa7QMm0v4gauUj/giG/s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iZkvZNhaExXFadCsgECWsZWm/X0njLDLQ+oF5UvXHn9Zrf56bUIJfQLGMf2CA7jlCo5bfaW4+u4/KdkDqzIU8jjTtGlEi0S9HUWmNlIGoMtNWF8B4KgXC6ELpAa4FvxP8YDdeN8LlorhQzZlvWogCkUhMYvMcTVloT97APM/bfE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WpklrB4E; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WpklrB4E" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DBE61F000E9; Wed, 29 Jul 2026 03:35:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785296148; bh=+7Go37gtU98cFLZaflYEpxWrUw0sh+lHQZKjYfL3U8c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=WpklrB4EIRd4CX1LpvERxygGDlMQLMPTrJktxp6x9NhahcdSTW1Q2TuJumZfkHX3S gkBv52nmnlSxTEhi1PiZN9GfttAmM8j4uTqFbwslWBk7g3kcdQBKBURRlPPWxapN+R fFRjM9srWNdEkMBTK2xSywTP39176EQ8awxt7/XzsgZzJ9dPGxDixpQorWsALD0RBn OjQanAhavtAyF5IMZoaSY8/03IxGmooJOQNQjTYiQLOZdYD0hWpsj1HNlau1XXQnth 4om+NMLja45nl7LMsb5p8raSA9JMpqrkM4j8CUVijIixE/dSi/XjH/ATG27zDFhVT8 VzCZbZtWAXyeA== From: Sasha Levin To: stable@vger.kernel.org Cc: Haoxiang Li , Larysa Zaremba , Alex Elder , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15.y] net: ipa: fix SMEM state handle leaks in SMP2P init Date: Tue, 28 Jul 2026 23:35:45 -0400 Message-ID: <20260729033545.1286767-1-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <2026072133-buffalo-cortex-74ca@gregkh> References: <2026072133-buffalo-cortex-74ca@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Haoxiang Li [ Upstream commit 96ca1e658ae459276292bd6d971ab5d8c7e0379a ] ipa_smp2p_init() acquires two Qualcomm SMEM state handles with qcom_smem_state_get(). However, neither the init error paths nor ipa_smp2p_exit() release them. Release both handles with qcom_smem_state_put() in the init error paths and in ipa_smp2p_exit(). Fixes: 530f9216a953 ("soc: qcom: ipa: AP/modem communications") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Reviewed-by: Larysa Zaremba Reviewed-by: Alex Elder Link: https://patch.msgid.link/20260624065955.2822765-1-haoxiang_li2024@163.com Signed-off-by: Jakub Kicinski [ kzalloc_obj() context line kept as kzalloc(sizeof(*smp2p), GFP_KERNEL) since ipa_smp2p.c was not yet converted in this tree ] Signed-off-by: Sasha Levin --- drivers/net/ipa/ipa_smp2p.c | 30 ++++++++++++++++++++++-------- 1 file changed, 22 insertions(+), 8 deletions(-) diff --git a/drivers/net/ipa/ipa_smp2p.c b/drivers/net/ipa/ipa_smp2p.c index 2112336120391c..5030e23df1eed4 100644 --- a/drivers/net/ipa/ipa_smp2p.c +++ b/drivers/net/ipa/ipa_smp2p.c @@ -233,19 +233,27 @@ int ipa_smp2p_init(struct ipa *ipa, bool modem_init) &valid_bit); if (IS_ERR(valid_state)) return PTR_ERR(valid_state); - if (valid_bit >= 32) /* BITS_PER_U32 */ - return -EINVAL; + if (valid_bit >= 32) { /* BITS_PER_U32 */ + ret = -EINVAL; + goto err_valid_state_put; + } enabled_state = qcom_smem_state_get(dev, "ipa-clock-enabled", &enabled_bit); - if (IS_ERR(enabled_state)) - return PTR_ERR(enabled_state); - if (enabled_bit >= 32) /* BITS_PER_U32 */ - return -EINVAL; + if (IS_ERR(enabled_state)) { + ret = PTR_ERR(enabled_state); + goto err_valid_state_put; + } + if (enabled_bit >= 32) { /* BITS_PER_U32 */ + ret = -EINVAL; + goto err_enabled_state_put; + } smp2p = kzalloc(sizeof(*smp2p), GFP_KERNEL); - if (!smp2p) - return -ENOMEM; + if (!smp2p) { + ret = -ENOMEM; + goto err_enabled_state_put; + } smp2p->ipa = ipa; @@ -290,6 +298,10 @@ int ipa_smp2p_init(struct ipa *ipa, bool modem_init) ipa->smp2p = NULL; mutex_destroy(&smp2p->mutex); kfree(smp2p); +err_enabled_state_put: + qcom_smem_state_put(enabled_state); +err_valid_state_put: + qcom_smem_state_put(valid_state); return ret; } @@ -306,6 +318,8 @@ void ipa_smp2p_exit(struct ipa *ipa) ipa_smp2p_power_release(ipa); ipa->smp2p = NULL; mutex_destroy(&smp2p->mutex); + qcom_smem_state_put(smp2p->enabled_state); + qcom_smem_state_put(smp2p->valid_state); kfree(smp2p); } -- 2.53.0