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| author | Tomas Mraz <tomas@openssl.org> | 2022-12-27 11:22:05 +0100 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2023-01-04 16:52:00 +0100 |
| commit | 0a69ca8f635f88b0488c5684410f97e22346c0bc (patch) | |
| tree | 84ec577ba87f807513cb84c5cb27e14de705539a /ssl | |
| parent | 5b449de0f0a185459916a0aaff0ff1f5f87b56b9 (diff) | |
Avoid possible divide by zero
Backport of commit 624efd2
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19967)
(cherry picked from commit 8c29e5ebfd5f19442422ba43fea4c95816417e34)
Diffstat (limited to 'ssl')
| -rw-r--r-- | ssl/record/ssl3_record.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/ssl/record/ssl3_record.c b/ssl/record/ssl3_record.c index dcaaeef951..368aaea5e9 100644 --- a/ssl/record/ssl3_record.c +++ b/ssl/record/ssl3_record.c @@ -1314,7 +1314,7 @@ int n_ssl3_mac(SSL *ssl, SSL3_RECORD *rec, unsigned char *md, int sending) } t = EVP_MD_CTX_get_size(hash); - if (t < 0) + if (t <= 0) return 0; md_size = t; npad = (48 / md_size) * md_size; |