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move entropy init prior arguments number recognition

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Signed-off-by: PiotrBzdrega <piotrbzdrega@yandex.com>
This commit is contained in:
PiotrBzdrega
2024-02-13 16:59:05 +01:00
parent 09cd7dd96a
commit 7c1cd5ae1c
2 changed files with 4 additions and 1 deletions
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3
ChangeLog.d/gen-key-segfault.txt Normal file
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@@ -0,0 +1,3 @@
Bugfix
* Avoid segmentation fault caused by releasing not initialized
entropy resource in gen_key example. Fixes #8809

2
programs/pkey/gen_key.c
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@@ -188,6 +188,7 @@ int main(int argc, char *argv[])
mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&DP); mbedtls_mpi_init(&D); mbedtls_mpi_init(&E); mbedtls_mpi_init(&DP);
mbedtls_mpi_init(&DQ); mbedtls_mpi_init(&QP); mbedtls_mpi_init(&DQ); mbedtls_mpi_init(&QP);
mbedtls_entropy_init(&entropy);
mbedtls_pk_init(&key); mbedtls_pk_init(&key);
mbedtls_ctr_drbg_init(&ctr_drbg); mbedtls_ctr_drbg_init(&ctr_drbg);
memset(buf, 0, sizeof(buf)); memset(buf, 0, sizeof(buf));
@@ -275,7 +276,6 @@ usage:
mbedtls_printf("\n . Seeding the random number generator..."); mbedtls_printf("\n . Seeding the random number generator...");
fflush(stdout); fflush(stdout);
mbedtls_entropy_init(&entropy);
#if !defined(_WIN32) && defined(MBEDTLS_FS_IO) #if !defined(_WIN32) && defined(MBEDTLS_FS_IO)
if (opt.use_dev_random) { if (opt.use_dev_random) {
if ((ret = mbedtls_entropy_add_source(&entropy, dev_random_entropy_poll, if ((ret = mbedtls_entropy_add_source(&entropy, dev_random_entropy_poll,