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Fix UNC parsing on mount 

The code cleanup of cifs_parse_mount_options resulted in a new bug being
introduced in the parsing of the UNC. This results in vol->UNC being
modified before vol->UNC was allocated.

Reported-by: Steve French <smfrench@gmail.com>
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Sachin Prabhu 2012-04-04 01:58:56 +01:00 committed by Steve French
parent 1023807458
commit e4b41fb9da
1 changed files with 7 additions and 7 deletions
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14
fs/cifs/connect.c
View File

@ -1648,6 +1648,13 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
}
vol->UNC = kmalloc(temp_len+1, GFP_KERNEL);
if (vol->UNC == NULL) {
printk(KERN_WARNING "CIFS: no memory for UNC\n");
goto cifs_parse_mount_err;
}
strcpy(vol->UNC, string);
if (strncmp(string, "//", 2) == 0) {
vol->UNC[0] = '\\';
vol->UNC[1] = '\\';
@ -1657,13 +1664,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
}
vol->UNC = kmalloc(temp_len+1, GFP_KERNEL);
if (vol->UNC == NULL) {
printk(KERN_WARNING "CIFS: no memory "
"for UNC\n");
goto cifs_parse_mount_err;
}
strcpy(vol->UNC, string);
break;
case Opt_domain:
string = match_strdup(args);