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 B2B0431158A; Fri, 21 Nov 2025 13:15:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763730959; cv=none; b=naRQ1rSLuO1P3IEqtZJxaKVZi95FnZF+6dCAj4CcZXyteu8Jyvwax0wZXnjMjLICYhVsqjjVRk+LIUqV7Jsqnhrgua3fTioAlNefSwpplcgPHM8NLfwI7kGHnYLBZGivsKhu+9KmpFdzNM1xmu3dMm3x6tC4bsg8RenqlQGMlA4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763730959; c=relaxed/simple; bh=e5+rlLO5w7v9DczBgtEKXHN+Uy/VKAayNH/IdAuEG3Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FKof0GKzK+trX8jW2Ux0c/CaMQHUhQSEpX7zZJ9U2rzFeFP9Zyyk3Lzx1N6b4S+6y1MEm8IZsHdD2f1I/PJVEfDc4fAuPsesASrYxatizim8I+9zhTEZaiJkZikmKpSCQvh6tgb5i1bhXoQY3et2c8X7zRygwlOF6Qwy4FMwAA0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=G0flM0XE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="G0flM0XE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CCB38C4CEF1; Fri, 21 Nov 2025 13:15:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1763730959; bh=e5+rlLO5w7v9DczBgtEKXHN+Uy/VKAayNH/IdAuEG3Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G0flM0XEsXO2uk0Vx+Cj87DIq9jpU7DnADV7szfNSIMRPTReVIxXNDVWrC9z4Gk6C jqaomMpasj5uppGncnTlASw9u8Aae3J3Aph+oaq/FQ0RQElRqO1uWM1Sc1k6+MvGOS z5+r6gO3Nq0XVSyEpxoEtnZ/FuJ56K4aiSEYuP/o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, ChenXiaoSong , ZhangGuoDong , Namjae Jeon , Steve French , Sasha Levin Subject: [PATCH 6.17 040/247] smb/server: fix possible memory leak in smb2_read() Date: Fri, 21 Nov 2025 14:09:47 +0100 Message-ID: <20251121130156.042281655@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251121130154.587656062@linuxfoundation.org> References: <20251121130154.587656062@linuxfoundation.org> User-Agent: quilt/0.69 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 6.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: ZhangGuoDong [ Upstream commit 6fced056d2cc8d01b326e6fcfabaacb9850b71a4 ] Memory leak occurs when ksmbd_vfs_read() fails. Fix this by adding the missing kvfree(). Co-developed-by: ChenXiaoSong Signed-off-by: ChenXiaoSong Signed-off-by: ZhangGuoDong Acked-by: Namjae Jeon Signed-off-by: Steve French Signed-off-by: Sasha Levin --- fs/smb/server/smb2pdu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c index 287200d7c0764..409b85af82e1c 100644 --- a/fs/smb/server/smb2pdu.c +++ b/fs/smb/server/smb2pdu.c @@ -6826,6 +6826,7 @@ int smb2_read(struct ksmbd_work *work) nbytes = ksmbd_vfs_read(work, fp, length, &offset, aux_payload_buf); if (nbytes < 0) { + kvfree(aux_payload_buf); err = nbytes; goto out; } -- 2.51.0