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-rw-r--r--drivers/target/iscsi/iscsi_target_auth.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 9430eea7c0d6..ab4915c0d933 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -355,6 +355,10 @@ static int chap_server_compute_md5(
pr_err("Unable to convert incoming challenge\n");
goto out;
}
+ if (challenge_len > 1024) {
+ pr_err("CHAP_C exceeds maximum binary size of 1024 bytes\n");
+ goto out;
+ }
/*
* During mutual authentication, the CHAP_C generated by the
* initiator must not match the original CHAP_C generated by