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Don't free aliased pointers in ctx cmp_ctx tests

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Coverity recorded issues 1551739 and 1551737, a potential double free in the
tests.  It occurs when the DUP operation fails in such a way val3_read is
returned as the same pointer as val2_read.  Ideally it should never
happen, but resetting val3_read to 0 should satisfy coverity that there
is no issue here

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Todd Short <todd.short@me.com>
(Merged from https://github.com/openssl/openssl/pull/22800)
This commit is contained in:
Neil Horman 2023-11-22 12:16:54 -05:00
parent 7eae6ee0e5
commit c8ca810da9
1 changed files with 3 additions and 0 deletions
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3
test/cmp_ctx_test.c
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@ -405,6 +405,7 @@ execute_CTX_##SETN##_##GETN##_##FIELD(OSSL_CMP_CTX_TEST_FIXTURE *fixture) \
} else { \
if (DUP && val1_read == val1) { \
TEST_error("first set did not dup the value"); \
val1_read = 0; \
res = 0; \
} \
if (DEFAULT(val1_read)) { \
@ -433,6 +434,7 @@ execute_CTX_##SETN##_##GETN##_##FIELD(OSSL_CMP_CTX_TEST_FIXTURE *fixture) \
} else { \
if (DUP && val2_read == val2) { \
TEST_error("second set did not dup the value"); \
val2_read = 0; \
res = 0; \
} \
if (val2 == val1) { \
@ -462,6 +464,7 @@ execute_CTX_##SETN##_##GETN##_##FIELD(OSSL_CMP_CTX_TEST_FIXTURE *fixture) \
} else { \
if (DUP && val3_read == val2_read) { \
TEST_error("third get did not create a new dup"); \
val3_read = 0; \
res = 0; \
} \
} \