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cifsd: fix memory leak when loop ends

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Memory is being allocated and if veto_list is zero, the loop breaks
without cleaning up the allocated memory. In this patch, the length
check has been moved before allocation. If loop breaks, the memory isn't
allocated in the first place. Thus the memory is being protected from
leaking.

Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1503590 ("Resource leaks")
Signed-off-by: Muhammad Usama Anjum <musamaanjum@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Muhammad Usama Anjum 2021-04-01 17:54:43 +09:00 committed by Steve French
parent 5da64d8784
commit c250e8f556
1 changed files with 4 additions and 4 deletions
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8
fs/cifsd/mgmt/share_config.c
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@ -92,14 +92,14 @@ static int parse_veto_list(struct ksmbd_share_config *share,
while (veto_list_sz > 0) {
struct ksmbd_veto_pattern *p;
p = kzalloc(sizeof(struct ksmbd_veto_pattern), GFP_KERNEL);
if (!p)
return -ENOMEM;
sz = strlen(veto_list);
if (!sz)
break;
p = kzalloc(sizeof(struct ksmbd_veto_pattern), GFP_KERNEL);
if (!p)
return -ENOMEM;
p->pattern = kstrdup(veto_list, GFP_KERNEL);
if (!p->pattern) {
ksmbd_free(p);