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cifs: fix memory leak when password is supplied multiple times

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Unlikely but possible. When password is supplied multiple times, we have
to free the previous allocation.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Namjae Jeon 2014-08-21 19:11:20 +09:00 committed by Steve French
parent 27b7edcf1c
commit d6ccf4997e
1 changed files with 2 additions and 0 deletions
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2
fs/cifs/connect.c
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@ -1600,6 +1600,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
tmp_end++;
if (!(tmp_end < end && tmp_end[1] == delim)) {
/* No it is not. Set the password to NULL */
kfree(vol->password);
vol->password = NULL;
break;
}
@ -1637,6 +1638,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
options = end;
}
kfree(vol->password);
/* Now build new password string */
temp_len = strlen(value);
vol->password = kzalloc(temp_len+1, GFP_KERNEL);