diff options
| author | Matt Caswell <matt@openssl.org> | 2021-02-19 17:03:43 +0000 |
|---|---|---|
| committer | Pauli <ppzgs1@gmail.com> | 2021-02-25 08:37:22 +1000 |
| commit | d84f5515faf3fe00ed5eeca7e7b8b041be863e90 (patch) | |
| tree | b2e8245e0a152f16b5bb2c5260e47781a6261c9d /doc/man3/EVP_RAND.pod | |
| parent | 6be27456e1346121b1fed797e92353733b59e16e (diff) | |
Don't hold a lock when calling a callback in ossl_namemap_doall_names
We don't want to hold a read lock when calling a user supplied callback.
That callback could do anything so the risk of a deadlock is high.
Instead we collect all the names first inside the read lock, and then
subsequently call the user callback outside the read lock.
Fixes #14225
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14250)
Diffstat (limited to 'doc/man3/EVP_RAND.pod')
| -rw-r--r-- | doc/man3/EVP_RAND.pod | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/doc/man3/EVP_RAND.pod b/doc/man3/EVP_RAND.pod index 97114af0fb..df92629780 100644 --- a/doc/man3/EVP_RAND.pod +++ b/doc/man3/EVP_RAND.pod @@ -41,9 +41,9 @@ EVP_RAND_STATE_ERROR - EVP RAND routines void EVP_RAND_do_all_provided(OSSL_LIB_CTX *libctx, void (*fn)(EVP_RAND *rand, void *arg), void *arg); - void EVP_RAND_names_do_all(const EVP_RAND *rand, - void (*fn)(const char *name, void *data), - void *data); + int EVP_RAND_names_do_all(const EVP_RAND *rand, + void (*fn)(const char *name, void *data), + void *data); int EVP_RAND_instantiate(EVP_RAND_CTX *ctx, unsigned int strength, int prediction_resistance, @@ -335,6 +335,9 @@ for the specified algorithm. EVP_RAND_up_ref() returns 1 on success, 0 on error. +EVP_RAND_names_do_all() returns 1 if the callback was called for all names. A +return value of 0 means that the callback was not called for any names. + EVP_RAND_CTX_new() returns either the newly allocated B<EVP_RAND_CTX> structure or NULL if an error occurred. |