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 6C14E415F10; Tue, 21 Jul 2026 20:49:11 +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=1784666952; cv=none; b=R1YNpmylPOhV9cXs9/tbAeIsYCckskZv23OqgxiYWxACCr3vzLD9Cjgqa1ycl7F5YtwmdBnBzXXEyE8uyJFrt9119YoyijafsZzB1lByCe9E9nri9RylvCGR4uvhm3+qNvaVsu7HhbdK/zz/l2UaVB5y4HkAD+paXXi60tgQ2x8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784666952; c=relaxed/simple; bh=xN/J+pGQx8hQssl43uIhAp/4wz7Rkp0tuXmwWgcy5HE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=brlDojxOhiYwlTTam3Gt+eC0qC/2vfJmBUMmFTQEaz5vIQ1G8Hl0X8DOwrpg3w6j2kXssNPsNumpmqJAZm5TFJP8cvCq9/rvXlmnZcXW6ptKZZ5L3GZH58g0FZzXviXJTtxEY21cFttSCwvV290IvS8mVGe6rmTrXjL42hmWaOo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Q6ZWCzFO; 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="Q6ZWCzFO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D24F31F00A3A; Tue, 21 Jul 2026 20:49:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784666951; bh=i87C4ayNXYN7T2mDT3kGMvTYhIF4WEdoBJAFwvMH/Pc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Q6ZWCzFOB4uDDSHtdaGH1u/N44ggUwLeTyV/zrEMQNDW+JFIUagxrp8v9VQ23DE/O p6+t3t8s92fM2uEFXGJFiau/30Q7jxvUTrL5/MDX0DZZ20GwCGPDK55qQ2VBlg+BRG FD2Qs2xOUV3f/rHD/E6QDTKejbynwx07x7y4sT7Q= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Howells , Marc Dionne , linux-afs@lists.infradead.org, "Christian Brauner (Amutable)" , Sasha Levin Subject: [PATCH 6.6 0834/1266] afs: Fix unchecked-length string display in debug statement Date: Tue, 21 Jul 2026 17:21:11 +0200 Message-ID: <20260721152500.517196982@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152441.786066624@linuxfoundation.org> References: <20260721152441.786066624@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Howells [ Upstream commit 903d37c97228258da71e092f8b4ab260ce81497d ] Fix afs_extract_vlserver_list() to limit the length of the displayed string in a debug statement(). Fixes: 0a5143f2f89c ("afs: Implement VL server rotation") Closes: https://sashiko.dev/#/patchset/20260618074903.2374756-1-dhowells%40redhat.com Signed-off-by: David Howells Link: https://patch.msgid.link/20260622090856.2746629-22-dhowells@redhat.com cc: Marc Dionne cc: linux-afs@lists.infradead.org Signed-off-by: Christian Brauner (Amutable) Signed-off-by: Sasha Levin --- fs/afs/vl_list.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/afs/vl_list.c b/fs/afs/vl_list.c index 631ee7e0629dc1..2761ac3ab0076f 100644 --- a/fs/afs/vl_list.c +++ b/fs/afs/vl_list.c @@ -192,6 +192,8 @@ struct afs_vlserver_list *afs_extract_vlserver_list(struct afs_cell *cell, b += sizeof(*hdr); while (end - b >= sizeof(bs)) { + int nlen; + bs.name_len = afs_extract_le16(&b); bs.priority = afs_extract_le16(&b); bs.weight = afs_extract_le16(&b); @@ -201,10 +203,12 @@ struct afs_vlserver_list *afs_extract_vlserver_list(struct afs_cell *cell, bs.protocol = *b++; bs.nr_addrs = *b++; + nlen = min3(bs.name_len, end - b, 255); + _debug("extract %u %u %u %u %u %u %*.*s", bs.name_len, bs.priority, bs.weight, bs.port, bs.protocol, bs.nr_addrs, - bs.name_len, bs.name_len, b); + bs.name_len, nlen, b); if (end - b < bs.name_len) break; -- 2.53.0