diff options
| author | Oliver Smith <osmith@sysmocom.de> | 2020-01-13 15:51:56 +0100 |
|---|---|---|
| committer | laforge <laforge@osmocom.org> | 2020-01-31 15:27:50 +0000 |
| commit | 74e7072f63b2f04cb65b64abfe5ca49695f0166e (patch) | |
| tree | e2afe920c6890341f54b3b457435753d5ba167d9 | |
| parent | 4fa9653733561828551a7aa8c1f9c19f093dadf4 (diff) | |
mdns_rfc.c: fix possible access of uninit. mem
Fixes: CID#207548
Change-Id: Ifa269d8a88d84c01349668cdd8d1f1d24c12c6d8
| -rw-r--r-- | src/mslookup/mdns_rfc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mslookup/mdns_rfc.c b/src/mslookup/mdns_rfc.c index e1fc184..6f39a8e 100644 --- a/src/mslookup/mdns_rfc.c +++ b/src/mslookup/mdns_rfc.c @@ -83,7 +83,12 @@ char *osmo_mdns_rfc_qname_decode(void *ctx, const char *qname, size_t qname_max_ return NULL; while (*qname) { - size_t len = *qname; + size_t len; + + if (i >= qname_max_len) + return NULL; + + len = *qname; next_label = qname + len + 1; if (next_label >= qname_end || i + len > OSMO_MDNS_RFC_MAX_NAME_LEN) |