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erp: check return of hkdf_expand

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James Prestwood 2019-10-16 15:29:45 -07:00 committed by Denis Kenzior
parent 81ec93fdcc
commit e31074b246
1 changed files with 3 additions and 2 deletions
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5
src/erp.c
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@ -509,8 +509,9 @@ int erp_rx_packet(struct erp_state *erp, const uint8_t *pkt, size_t len)
l_put_be16(64, ptr);
ptr += 2;
hkdf_expand(L_CHECKSUM_SHA256, erp->r_rk, erp->cache->emsk_len,
info, ptr - info, erp->rmsk, erp->cache->emsk_len);
if (!hkdf_expand(L_CHECKSUM_SHA256, erp->r_rk, erp->cache->emsk_len,
info, ptr - info, erp->rmsk, erp->cache->emsk_len))
goto eap_failed;
return 0;