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cifs: multichannel: always zero struct cifs_io_parms

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SMB2_read/SMB2_write check and use cifs_io_parms->server, which might
be uninitialized memory.

This change makes all callers zero-initialize the struct.

Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Aurelien Aptel 2020-06-04 17:23:55 +02:00 committed by Steve French
parent 8e84a61a9c
commit 7c06514afd
4 changed files with 7 additions and 7 deletions
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4
fs/cifs/file.c
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@ -1853,7 +1853,7 @@ cifs_write(struct cifsFileInfo *open_file, __u32 pid, const char *write_data,
unsigned int xid;
struct dentry *dentry = open_file->dentry;
struct cifsInodeInfo *cifsi = CIFS_I(d_inode(dentry));
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
cifs_dbg(FYI, "write %zd bytes to offset %lld of %pd\n",
write_size, *offset, dentry);
@ -4014,7 +4014,7 @@ cifs_read(struct file *file, char *read_data, size_t read_size, loff_t *offset)
unsigned int xid;
char *cur_offset;
struct cifsFileInfo *open_file;
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
int buf_type = CIFS_NO_BUFFER;
__u32 pid;

2
fs/cifs/inode.c
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@ -447,7 +447,7 @@ cifs_sfu_type(struct cifs_fattr *fattr, const char *path,
struct cifs_tcon *tcon;
struct cifs_fid fid;
struct cifs_open_parms oparms;
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
char buf[24];
unsigned int bytes_read;
char *pbuf;

6
fs/cifs/link.c
View File

@ -308,7 +308,7 @@ cifs_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
int oplock = 0;
struct cifs_fid fid;
struct cifs_open_parms oparms;
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
int buf_type = CIFS_NO_BUFFER;
FILE_ALL_INFO file_info;
@ -352,7 +352,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
int oplock = 0;
struct cifs_fid fid;
struct cifs_open_parms oparms;
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
oparms.tcon = tcon;
oparms.cifs_sb = cifs_sb;
@ -389,7 +389,7 @@ smb3_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
int rc;
struct cifs_fid fid;
struct cifs_open_parms oparms;
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
int buf_type = CIFS_NO_BUFFER;
__le16 *utf16_path;
__u8 oplock = SMB2_OPLOCK_LEVEL_NONE;

2
fs/cifs/smb2ops.c
View File

@ -4584,7 +4584,7 @@ smb2_make_node(unsigned int xid, struct inode *inode,
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
int rc = -EPERM;
FILE_ALL_INFO *buf = NULL;
struct cifs_io_parms io_parms;
struct cifs_io_parms io_parms = {0};
__u32 oplock = 0;
struct cifs_fid fid;
struct cifs_open_parms oparms;