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| author | Matt Caswell <matt@openssl.org> | 2021-05-14 15:33:40 +0100 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2021-05-17 10:36:03 +0100 |
| commit | a227ff336fc934b4a52c4659ae423dfa10efd5f3 (patch) | |
| tree | 573468fdd777c35a2aabb58591dcc3dd731a6f73 /include | |
| parent | 55373bfd419ca010a15aac18c88c94827e2f3a92 (diff) | |
Fix a use-after-free in the child provider code
If the child provider context data gets cleaned up before all usage of
providers has finished then a use-after-free can occur. We change the
priority of this data so that it gets freed later.
Fixes #15284
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15286)
Diffstat (limited to 'include')
| -rw-r--r-- | include/internal/cryptlib.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/internal/cryptlib.h b/include/internal/cryptlib.h index d943419a52..966c8f26f1 100644 --- a/include/internal/cryptlib.h +++ b/include/internal/cryptlib.h @@ -168,6 +168,7 @@ typedef struct ossl_ex_data_global_st { # define OSSL_LIB_CTX_CHILD_PROVIDER_INDEX 18 # define OSSL_LIB_CTX_MAX_INDEXES 19 +# define OSSL_LIB_CTX_METHOD_LOW_PRIORITY -1 # define OSSL_LIB_CTX_METHOD_DEFAULT_PRIORITY 0 # define OSSL_LIB_CTX_METHOD_PRIORITY_1 1 # define OSSL_LIB_CTX_METHOD_PRIORITY_2 2 |