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 A835042DFF3 for ; Mon, 13 Jul 2026 13:45:12 +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=1783950315; cv=none; b=rWeJt0Ckp+gx4DHigWADH8pg3x1MuC4FyPafTmaeb2ba/UXd/aiEBJOQDBpywYb9nY8DOiE8WyasiN//AFRpiglxWwJSJfL/0aclQqiQi4B3537MjSHq0knxL25fL/sK5/CQxVogVvWCpuSWLnTX/wlMWWeHD5Qd65F8oMyE74A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783950315; c=relaxed/simple; bh=T9ozbmxQR0QcQJ8yhwUrD40osw0SDKw8NGgUdKvDXaU=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=Hp6XJYQVn3UwBfGYOKp97NNIAc7YyFZeLEFCjN5KYTr5DcTm0YzmdPu4t12ex4pkODiZ5Ou9ItpMrJK6wEhQMRCcsntI9ITWYSIJq3cPu/MovLjqZ1ARI3C+5vNDx3gLdfSV8sF69MhFtQrSOCAvqg6P7RDTzhnsvgFcxCfNfWM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jRP21yaN; 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="jRP21yaN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 516BF1F00A3A; Mon, 13 Jul 2026 13:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1783950312; bh=uDuW31X9aJmr2GeWYOd364OMIj/71d6Et0nfgKBgCX8=; h=Subject:To:Cc:From:Date; b=jRP21yaNdhrzd4+NOTfGGJe+pSJACL7Qye0kiYPQlK88fjixWSfeZ9WP0U0QEPLGx HEHyFqlhsQKm6Jp5IkqmLR2UANB8dhfUT7ftH9UGS965kGBOWG/0i7qilgnA5EWdOY RtxTwi8iXstpQaQZW1DEPU4XbMzMsggsHOjFHLB8= Subject: FAILED: patch "[PATCH] staging: rtl8723bs: fix OOB reads in IE loops in" failed to apply to 5.10-stable tree To: hossu.alexandru@gmail.com,gregkh@linuxfoundation.org,luka.gejak@linux.dev,stable@kernel.org Cc: From: Date: Mon, 13 Jul 2026 15:33:33 +0200 Message-ID: <2026071333-pacify-morbidly-5ced@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x ef61d628dfad38fead1fd2e08979ae9126d011d5 # git commit -s git send-email --to '' --in-reply-to '2026071333-pacify-morbidly-5ced@gregkh' --subject-prefix 'PATCH 5.10.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From ef61d628dfad38fead1fd2e08979ae9126d011d5 Mon Sep 17 00:00:00 2001 From: Alexandru Hossu Date: Fri, 22 May 2026 02:45:26 +0200 Subject: [PATCH] staging: rtl8723bs: fix OOB reads in IE loops in issue_assocreq() and join_cmd_hdl() Two IE parsing loops are missing the header bounds checks before they dereference pIE->length: - issue_assocreq() walks pmlmeinfo->network.ies to build the association request. If the stored IE data ends with only an element_id byte and no length byte, pIE->length is read one byte past the end of the buffer. - join_cmd_hdl() walks pnetwork->ies during station join and has the same problem under the same conditions. Both buffers are filled from AP beacon and probe-response frames, so a malicious AP that sends a truncated final IE can trigger the issue. Apply the two-guard pattern established in update_beacon_info(): 1. Break if fewer than sizeof(*pIE) bytes remain. 2. Break if the IE's declared data extends past the buffer end. Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver") Cc: stable Reviewed-by: Luka Gejak Signed-off-by: Alexandru Hossu Link: https://patch.msgid.link/20260522004531.1038924-3-hossu.alexandru@gmail.com Signed-off-by: Greg Kroah-Hartman diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c index 7198be795000..70e864cd530d 100644 --- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c @@ -2861,7 +2861,11 @@ void issue_assocreq(struct adapter *padapter) /* vendor specific IE, such as WPA, WMM, WPS */ for (i = sizeof(struct ndis_802_11_fix_ie); i < pmlmeinfo->network.ie_length;) { + if (i + sizeof(*pIE) > pmlmeinfo->network.ie_length) + break; pIE = (struct ndis_80211_var_ie *)(pmlmeinfo->network.ies + i); + if (i + sizeof(*pIE) + pIE->length > pmlmeinfo->network.ie_length) + break; switch (pIE->element_id) { case WLAN_EID_VENDOR_SPECIFIC: @@ -5189,7 +5193,11 @@ u8 join_cmd_hdl(struct adapter *padapter, u8 *pbuf) /* sizeof(struct ndis_802_11_fix_ie) */ for (i = _FIXED_IE_LENGTH_; i < pnetwork->ie_length;) { + if (i + sizeof(*pIE) > pnetwork->ie_length) + break; pIE = (struct ndis_80211_var_ie *)(pnetwork->ies + i); + if (i + sizeof(*pIE) + pIE->length > pnetwork->ie_length) + break; switch (pIE->element_id) { case WLAN_EID_VENDOR_SPECIFIC:/* Get WMM IE. */