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 6030334DCE4; Wed, 20 May 2026 18:02:33 +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=1779300154; cv=none; b=PiWDyJZgvs75vL1ugNw9WjMglCO8paRs2NbjPz7BRVkSmYAZsfbxXRS9GFf3CkBbtW0WVcFyaxHx2IzFL+kZXiFDQgO9oz3alqm6FRI/Vea1lTE0XtAQT3Aub8yz18CH1eWCcpS0B9h+ZxSu9iAHU6cYblnGD9+Mf4q9bp8uyGA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779300154; c=relaxed/simple; bh=BHC7uI1Vxn38qpgMsYOHg5/EhocVUUIxHivxIjTvTBE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qp+lP7sciYf5gjrgLKvWYGMOh/VxC83VPHmrPK76iUWMuLVXe3oCyjVzlaVAr651c44Kv5eB532prZQD2tswgtq+BzZXP3kULTyg0G9QWMmAgJFXXFUeynyDWIhNm9YllQdgUG4DeT0MT+eHqpU7o5wAdaZYp37PBBk5YeFNoyM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jBBpB3I9; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="jBBpB3I9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C697B1F000E9; Wed, 20 May 2026 18:02:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779300153; bh=Mrjw1bHXVg4az3yVbT7YNcIBf9NCPkoVpQrj0U1DyhI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=jBBpB3I91UtNoPHqJW3H8uOiC63nRWPAdVbe6OQ0Gqj4SzcIph657/bUwYt9R681G joqWkequCmH3zZBDMTLAGmWecYKOSIuJJFWrbRVo96ofpagBBa6gj7srJyIwuIIvR0 3U0InPWQiALjEKZhtyncfOjqRF+Wwi1+y52LF4Zg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ethan Tidmore , Arend van Spriel , Johannes Berg , Sasha Levin Subject: [PATCH 6.12 066/666] wifi: brcmfmac: Fix error pointer dereference Date: Wed, 20 May 2026 18:14:37 +0200 Message-ID: <20260520162112.661599810@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162111.222830634@linuxfoundation.org> References: <20260520162111.222830634@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ethan Tidmore [ Upstream commit dd8592fc6007a451c3e4b9025de365e39de8178a ] The function brcmf_chip_add_core() can return an error pointer and is not checked. Add checks for error pointer. Detected by Smatch: drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1010 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1013 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1016 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1019 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c:1022 brcmf_chip_recognition() error: 'core' dereferencing possible ERR_PTR() Fixes: cb7cf7be9eba7 ("brcmfmac: make chip related functions host interface independent") Signed-off-by: Ethan Tidmore Acked-by: Arend van Spriel Link: https://patch.msgid.link/20260217023043.73631-1-ethantidmore06@gmail.com [add missing wifi: prefix] Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- .../wireless/broadcom/brcm80211/brcmfmac/chip.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c index 2ef92ef25517e..4dbb1898f3065 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c @@ -1006,18 +1006,33 @@ static int brcmf_chip_recognition(struct brcmf_chip_priv *ci) core = brcmf_chip_add_core(ci, BCMA_CORE_CHIPCOMMON, SI_ENUM_BASE_DEFAULT, 0); + if (IS_ERR(core)) + return PTR_ERR(core); + brcmf_chip_sb_corerev(ci, core); core = brcmf_chip_add_core(ci, BCMA_CORE_SDIO_DEV, BCM4329_CORE_BUS_BASE, 0); + if (IS_ERR(core)) + return PTR_ERR(core); + brcmf_chip_sb_corerev(ci, core); core = brcmf_chip_add_core(ci, BCMA_CORE_INTERNAL_MEM, BCM4329_CORE_SOCRAM_BASE, 0); + if (IS_ERR(core)) + return PTR_ERR(core); + brcmf_chip_sb_corerev(ci, core); core = brcmf_chip_add_core(ci, BCMA_CORE_ARM_CM3, BCM4329_CORE_ARM_BASE, 0); + if (IS_ERR(core)) + return PTR_ERR(core); + brcmf_chip_sb_corerev(ci, core); core = brcmf_chip_add_core(ci, BCMA_CORE_80211, 0x18001000, 0); + if (IS_ERR(core)) + return PTR_ERR(core); + brcmf_chip_sb_corerev(ci, core); } else if (socitype == SOCI_AI) { ci->iscoreup = brcmf_chip_ai_iscoreup; -- 2.53.0