diff options
author | Matt Caswell <matt@openssl.org> | 2021-02-19 17:03:43 +0000 |
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committer | Pauli <ppzgs1@gmail.com> | 2021-02-25 08:37:22 +1000 |
commit | d84f5515faf3fe00ed5eeca7e7b8b041be863e90 (patch) | |
tree | b2e8245e0a152f16b5bb2c5260e47781a6261c9d /crypto/evp/evp_fetch.c | |
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 'crypto/evp/evp_fetch.c')
-rw-r--r-- | crypto/evp/evp_fetch.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/crypto/evp/evp_fetch.c b/crypto/evp/evp_fetch.c index 2f0d0e15b0..589c15fb1e 100644 --- a/crypto/evp/evp_fetch.c +++ b/crypto/evp/evp_fetch.c @@ -530,12 +530,12 @@ int evp_is_a(OSSL_PROVIDER *prov, int number, return ossl_namemap_name2num(namemap, name) == number; } -void evp_names_do_all(OSSL_PROVIDER *prov, int number, - void (*fn)(const char *name, void *data), - void *data) +int evp_names_do_all(OSSL_PROVIDER *prov, int number, + void (*fn)(const char *name, void *data), + void *data) { OSSL_LIB_CTX *libctx = ossl_provider_libctx(prov); OSSL_NAMEMAP *namemap = ossl_namemap_stored(libctx); - ossl_namemap_doall_names(namemap, number, fn, data); + return ossl_namemap_doall_names(namemap, number, fn, data); } |