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-rw-r--r--ssl/quic/qlog.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ssl/quic/qlog.c b/ssl/quic/qlog.c
index 2cfa9af9d3..c14d53eece 100644
--- a/ssl/quic/qlog.c
+++ b/ssl/quic/qlog.c
@@ -130,7 +130,7 @@ QLOG *ossl_qlog_new_from_env(const QLOG_TRACE_INFO *info)
filename[l++] = qlogdir_sep;
for (i = 0; i < info->odcid.id_len; ++i)
- l += sprintf(filename + l, "%02x", info->odcid.id[i]);
+ l += BIO_snprintf(filename + l, strl - l, "%02x", info->odcid.id[i]);
l += BIO_snprintf(filename + l, strl - l, "_%s.sqlog",
info->is_server ? "server" : "client");