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[CIFS] potential NULL dereference in parse_DFS_referrals()

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memory allocation may fail, prevent a NULL dereference

Pointed out by Roel Kluin

CC: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Steve French 2009-08-31 15:27:26 +00:00
parent 7b2aa037e8
commit 2920ee2b47
1 changed files with 4 additions and 0 deletions
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4
fs/cifs/cifssmb.c
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@ -3961,6 +3961,10 @@ parse_DFS_referrals(TRANSACTION2_GET_DFS_REFER_RSP *pSMBr,
if (is_unicode) {
__le16 *tmp = kmalloc(strlen(searchName)*2 + 2,
GFP_KERNEL);
if (tmp == NULL) {
rc = -ENOMEM;
goto parse_DFS_referrals_exit;
}
cifsConvertToUCS((__le16 *) tmp, searchName,
PATH_MAX, nls_codepage, remap);
node->path_consumed = cifs_ucs2_bytes(tmp,