2017-07-05 12:47:38

by Colin King

Subject: [PATCH][cifs-next] cifs: set oparms.create_options rather than or'ing in CREATE_OPEN_BACKUP_INTENT

From: Colin Ian King <[email protected]>

Currently oparms.create_options is uninitialized and the code is logically
or'ing in CREATE_OPEN_BACKUP_INTENT onto a garbage value of
oparms.create_options from the stack. Fix this by just setting the value
rather than or'ing in the setting.

Detected by CoverityScan, CID#1447220 ("Unitialized scale value")

Signed-off-by: Colin Ian King <[email protected]>
---
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 941c40b7a870..c805b7619083 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1339,7 +1339,7 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
xid = get_xid();

if (backup_cred(cifs_sb))
- oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
+ oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
else
oparms.create_options = 0;

--
2.11.0

2017-07-06 01:01:38

by Pavel Shilovskiy

Subject: RE: [PATCH][cifs-next] cifs: set oparms.create_options rather than or'ing in CREATE_OPEN_BACKUP_INTENT

2017-07-05 5:47 GMT-07:00 Colin King <[email protected]>:
> From: Colin Ian King <[email protected]>
>
> Currently oparms.create_options is uninitialized and the code is logically
> or'ing in CREATE_OPEN_BACKUP_INTENT onto a garbage value of
> oparms.create_options from the stack. Fix this by just setting the value
> rather than or'ing in the setting.
>
> Detected by CoverityScan, CID#1447220 ("Unitialized scale value")
>
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> 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 941c40b7a870..c805b7619083 100644
> --- a/fs/cifs/smb2ops.c
> +++ b/fs/cifs/smb2ops.c
> @@ -1339,7 +1339,7 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
> xid = get_xid();
>
> if (backup_cred(cifs_sb))
> - oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
> + oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
> else
> oparms.create_options = 0;
>


Reviewed-by: Pavel Shilovsky <[email protected]>

--
Best regards,
Pavel Shilovsky

2017-07-06 01:02:46

by Steve French

Subject: Re: [PATCH][cifs-next] cifs: set oparms.create_options rather than or'ing in CREATE_OPEN_BACKUP_INTENT

good catch - merged into cifs-2.6.git for-next

On Wed, Jul 5, 2017 at 7:47 AM, Colin King <[email protected]> wrote:
> From: Colin Ian King <[email protected]>
>
> Currently oparms.create_options is uninitialized and the code is logically
> or'ing in CREATE_OPEN_BACKUP_INTENT onto a garbage value of
> oparms.create_options from the stack. Fix this by just setting the value
> rather than or'ing in the setting.
>
> Detected by CoverityScan, CID#1447220 ("Unitialized scale value")
>
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> 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 941c40b7a870..c805b7619083 100644
> --- a/fs/cifs/smb2ops.c
> +++ b/fs/cifs/smb2ops.c
> @@ -1339,7 +1339,7 @@ get_smb2_acl_by_path(struct cifs_sb_info *cifs_sb,
> xid = get_xid();
>
> if (backup_cred(cifs_sb))
> - oparms.create_options |= CREATE_OPEN_BACKUP_INTENT;
> + oparms.create_options = CREATE_OPEN_BACKUP_INTENT;
> else
> oparms.create_options = 0;
>
> --
> 2.11.0
>
> --
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--
Thanks,

Steve