diff options
| author | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2017-06-13 19:00:35 +0200 |
|---|---|---|
| committer | Rich Salz <rsalz@openssl.org> | 2017-06-13 21:48:29 -0400 |
| commit | 4fc426b78964b3d234cb7b1b6112c9b80e16a13a (patch) | |
| tree | 7d36e0f5825da9bf4ca8efe32601836e54c75e32 | |
| parent | 4d0eac19993b07408285e631e0ca81ee006d228a (diff) | |
Fix a possible crash in the error handling.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3672)
| -rw-r--r-- | crypto/err/err.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/err/err.c b/crypto/err/err.c index f31bfc8f55..c5991fdbbc 100644 --- a/crypto/err/err.c +++ b/crypto/err/err.c @@ -378,6 +378,8 @@ void ERR_put_error(int lib, int func, int reason, const char *file, int line) } #endif es = ERR_get_state(); + if (es == NULL) + return; es->top = (es->top + 1) % ERR_NUM_ERRORS; if (es->top == es->bottom) @@ -395,6 +397,8 @@ void ERR_clear_error(void) ERR_STATE *es; es = ERR_get_state(); + if (es == NULL) + return; for (i = 0; i < ERR_NUM_ERRORS; i++) { err_clear(es, i); @@ -459,6 +463,8 @@ static unsigned long get_error_values(int inc, int top, const char **file, unsigned long ret; es = ERR_get_state(); + if (es == NULL) + return 0; if (inc && top) { if (file) @@ -709,6 +715,8 @@ void ERR_set_error_data(char *data, int flags) int i; es = ERR_get_state(); + if (es == NULL) + return; i = es->top; if (i == 0) @@ -764,6 +772,8 @@ int ERR_set_mark(void) ERR_STATE *es; es = ERR_get_state(); + if (es == NULL) + return 0; if (es->bottom == es->top) return 0; @@ -776,6 +786,8 @@ int ERR_pop_to_mark(void) ERR_STATE *es; es = ERR_get_state(); + if (es == NULL) + return 0; while (es->bottom != es->top && (es->err_flags[es->top] & ERR_FLAG_MARK) == 0) { |