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bgpd: bounds-check when parsing incoming label in nlri #20062

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Nov 21, 2025
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bgpd: bounds-check when parsing incoming label in nlri #20062

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2 changes: 1 addition & 1 deletion bgpd/bgp_label.c
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Original file line number Diff line number Diff line change
Expand Up @@ -424,7 +424,7 @@ static int bgp_nlri_get_labels(struct peer *peer, uint8_t *pnt, uint8_t plen,
if (plen < BGP_LABEL_BYTES)
return 0;

for (; data < lim; data += BGP_LABEL_BYTES) {
for (; (data + BGP_LABEL_BYTES) <= lim; data += BGP_LABEL_BYTES) {
memcpy(label, data, BGP_LABEL_BYTES);
llen += BGP_LABEL_BYTES;

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