[SMB3][PATCH] smb3: fix access denied on change notify request to some servers

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read permission, not just read attributes permission, is required
on the directory.

See MS-SMB2 (protocol specification) section 3.3.5.19.

Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
CC: Stable <stable@xxxxxxxxxxxxxxx> # v5.6+
---
 fs/cifs/smb2ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index d9fdafa5eb60..32f90dc82c84 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2148,7 +2148,7 @@ smb3_notify(const unsigned int xid, struct file *pfile,

  tcon = cifs_sb_master_tcon(cifs_sb);
  oparms.tcon = tcon;
- oparms.desired_access = FILE_READ_ATTRIBUTES;
+ oparms.desired_access = FILE_READ_ATTRIBUTES | FILE_READ_DATA;
  oparms.disposition = FILE_OPEN;
  oparms.create_options = cifs_create_options(cifs_sb, 0);
  oparms.fid = &fid;
-- 
2.25.1


-- 
Thanks,

Steve



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