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Merge pull request #5310 from donaldsharp/ospf_use_after_free

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ospfd: Function order caused use after free.
This commit is contained in:
Sri Mohana Singamsetty 2019-11-11 13:29:28 -08:00 committed by GitHub
commit 5761cee5cc
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 3 deletions
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6
ospfd/ospf_opaque.c
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@ -430,9 +430,9 @@ void ospf_delete_opaque_functab(uint8_t lsa_type, uint8_t opaque_type)
/* Cleanup internal control information, if it
* still remains. */
if (functab->oipt != NULL) {
free_opaque_info_owner(functab->oipt);
free_opaque_info_per_type(
functab->oipt);
free_opaque_info_owner(functab->oipt);
}
/* Dequeue listnode entry from the list. */
@ -554,8 +554,8 @@ register_opaque_info_per_type(struct ospf_opaque_functab *functab,
case OSPF_OPAQUE_AS_LSA:
top = ospf_lookup_by_vrf_id(new->vrf_id);
if (new->area != NULL && (top = new->area->ospf) == NULL) {
free_opaque_info_per_type((void *)oipt);
free_opaque_info_owner(oipt);
free_opaque_info_per_type(oipt);
oipt = NULL;
goto out; /* This case may not exist. */
}
@ -567,8 +567,8 @@ register_opaque_info_per_type(struct ospf_opaque_functab *functab,
EC_OSPF_LSA_UNEXPECTED,
"register_opaque_info_per_type: Unexpected LSA-type(%u)",
new->data->type);
free_opaque_info_per_type((void *)oipt);
free_opaque_info_owner(oipt);
free_opaque_info_per_type(oipt);
oipt = NULL;
goto out; /* This case may not exist. */
}