Attachment 13521 Details for Bug 13003 – Patch to fix the segfault

[patch] Patch to fix the segfault

0001-s3-vfs-Pass-a-valid-fsp-to-SMB_VFS_GET_COMPRESSION.patch (text/plain), 1.31 KB, created by Justin Maggard on 2017-08-31 00:40:49 UTC

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Creator: Justin Maggard

Created: 2017-08-31 00:40:49 UTC

Size: 1.31 KB

patch

obsolete

>From 290cd2f0763521ddaf3593497fa404d90ae8575e Mon Sep 17 00:00:00 2001
>From: Justin Maggard <jmaggard@netgear.com>
>Date: Wed, 30 Aug 2017 17:36:43 -0700
>Subject: [PATCH] s3: vfs: Pass a valid fsp to SMB_VFS_GET_COMPRESSION
>
>We need to pass a valid fsp to SMB_VFS_GET_COMPRESSION(), or we will
>crash.
>---
> source3/smbd/dosmode.c | 15 ++++++++++++++-
> 1 file changed, 14 insertions(+), 1 deletion(-)
>
>diff --git a/source3/smbd/dosmode.c b/source3/smbd/dosmode.c
>index 3181f2e78a9..6e0ab1bbda1 100644
>--- a/source3/smbd/dosmode.c
>+++ b/source3/smbd/dosmode.c
>@@ -579,14 +579,27 @@ static NTSTATUS dos_mode_check_compressed(connection_struct *conn,
> {
> 	NTSTATUS status;
> 	uint16_t compression_fmt;
>+	bool need_close = false;
>+	files_struct *fsp = NULL;
> 	TALLOC_CTX *tmp_ctx = talloc_new(NULL);
> 	if (tmp_ctx == NULL) {
> 		status = NT_STATUS_NO_MEMORY;
> 		goto err_out;
> 	}
> 
>-	status = SMB_VFS_GET_COMPRESSION(conn, tmp_ctx, NULL, smb_fname,
>+	status = get_file_handle_for_metadata(conn,
>+					      smb_fname,
>+					      &fsp,
>+					      &need_close);
>+	if (!NT_STATUS_IS_OK(status)) {
>+		goto err_ctx_free;
>+	}
>+
>+	status = SMB_VFS_GET_COMPRESSION(conn, tmp_ctx, fsp, smb_fname,
> 					 &compression_fmt);
>+	if (need_close) {
>+		close_file(NULL, fsp, NORMAL_CLOSE);
>+	}
> 	if (!NT_STATUS_IS_OK(status)) {
> 		goto err_ctx_free;
> 	}
>-- 
>2.14.1
>

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