mirror/openssl
2
0
Fork 0
mirror of https://github.com/openssl/openssl.git synced 2025-02-17 14:32:04 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix NULL pointer dereference in the ex_data code

Browse Source 
In some circumstances the global data held in the "global" variable can
be NULL, so we should error out in the circumstance instead of crashing.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/9035)
This commit is contained in:
Matt Caswell 2019-05-28 11:28:16 +01:00
parent 57ca171a13
commit f2d20f0bb8
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/ex_data.c
View File

@ -36,7 +36,7 @@ static EX_CALLBACKS *get_and_lock(OPENSSL_CTX *ctx, int class_index)
}
global = openssl_ctx_get_ex_data_global(ctx);
if (global->ex_data_lock == NULL) {
if (global == NULL || global->ex_data_lock == NULL) {
/*
* This can happen in normal operation when using CRYPTO_mem_leaks().
* The CRYPTO_mem_leaks() function calls OPENSSL_cleanup() which cleans