mir/bind
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-30 05:57:52 +00:00
Code Issues Releases Wiki Activity

fix bad-cache assert

Browse Source 
3346.	[security]	Bad-cache data could be used before it was
			initialized, causing an assert. [RT #30025]
This commit is contained in:
Evan Hunt 2012-07-02 10:01:48 -07:00
parent d64138e577
commit cdd271b14a
2 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CHANGES
View File

@ -1,3 +1,6 @@
3346. [security] Bad-cache data could be used before it was
initialized, causing an assert. [RT #30025]
3345. [bug] Addressed race condition when removing the last item
or inserting the first item in an ISC_QUEUE.
[RT #29539]

5
lib/dns/resolver.c
View File

@ -8452,6 +8452,7 @@ dns_resolver_addbadcache(dns_resolver_t *resolver, dns_name_t *name,
goto cleanup;
bad->type = type;
bad->hashval = hashval;
bad->expire = *expire;
isc_buffer_init(&buffer, bad + 1, name->length);
dns_name_init(&bad->name, NULL);
dns_name_copy(name, &bad->name, &buffer);
@ -8463,8 +8464,8 @@ dns_resolver_addbadcache(dns_resolver_t *resolver, dns_name_t *name,
if (resolver->badcount < resolver->badhash * 2 &&
resolver->badhash > DNS_BADCACHE_SIZE)
resizehash(resolver, &now, ISC_FALSE);
}
bad->expire = *expire;
} else
bad->expire = *expire;
cleanup:
UNLOCK(&resolver->lock);
}