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Fix some memory leaks in the openssl app

Browse Source 
In some error cases the normal cleanup did not
happen, but instead an exit(1) which caused some
memory leaks, as reported in #22049.

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/22055)
This commit is contained in:
Bernd Edlinger 2023-09-11 06:38:31 +02:00
parent 080bd08fd3
commit 8c040c086c
8 changed files with 18 additions and 4 deletions
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2
apps/dgst.c
View File

@ -321,6 +321,8 @@ int dgst_main(int argc, char **argv)
sigkey = app_keygen(mac_ctx, mac_name, 0, 0 /* not verbose */);
/* Verbose output would make external-tests gost-engine fail */
EVP_PKEY_CTX_free(mac_ctx);
if (sigkey == NULL)
goto end;
}
if (hmac_key != NULL) {

2
apps/dhparam.c
View File

@ -233,6 +233,8 @@ int dhparam_main(int argc, char **argv)
}
tmppkey = app_paramgen(ctx, alg);
if (tmppkey == NULL)
goto end;
EVP_PKEY_CTX_free(ctx);
ctx = NULL;
if (dsaparam) {

2
apps/dsaparam.c
View File

@ -232,6 +232,8 @@ int dsaparam_main(int argc, char **argv)
goto end;
}
pkey = app_keygen(ctx, "DSA", numbits, verbose);
if (pkey == NULL)
goto end;
assert(private);
if (outformat == FORMAT_ASN1)
i = i2d_PrivateKey_bio(out, pkey);

2
apps/gendsa.c
View File

@ -148,6 +148,8 @@ int gendsa_main(int argc, char **argv)
goto end;
}
pkey = app_keygen(ctx, "DSA", nbits, verbose);
if (pkey == NULL)
goto end;
assert(private);
if (!PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, passout)) {

2
apps/genpkey.c
View File

@ -234,6 +234,8 @@ int genpkey_main(int argc, char **argv)
pkey = do_param ? app_paramgen(ctx, algname)
: app_keygen(ctx, algname, 0, 0 /* not verbose */);
if (pkey == NULL)
goto end;
if (do_param) {
rv = PEM_write_bio_Parameters(out, pkey);

2
apps/genrsa.c
View File

@ -204,6 +204,8 @@ opthelp:
goto end;
}
pkey = app_keygen(ctx, "RSA", num, verbose);
if (pkey == NULL)
goto end;
if (verbose) {
BIGNUM *e = NULL;

8
apps/lib/apps.c
View File

@ -3417,8 +3417,8 @@ EVP_PKEY *app_keygen(EVP_PKEY_CTX *ctx, const char *alg, int bits, int verbose)
BIO_printf(bio_err, "Warning: generating random key material may take a long time\n"
"if the system has a poor entropy source\n");
if (EVP_PKEY_keygen(ctx, &res) <= 0)
app_bail_out("%s: Error generating %s key\n", opt_getprog(),
alg != NULL ? alg : "asymmetric");
BIO_printf(bio_err, "%s: Error generating %s key\n", opt_getprog(),
alg != NULL ? alg : "asymmetric");
return res;
}
@ -3430,8 +3430,8 @@ EVP_PKEY *app_paramgen(EVP_PKEY_CTX *ctx, const char *alg)
BIO_printf(bio_err, "Warning: generating random key parameters may take a long time\n"
"if the system has a poor entropy source\n");
if (EVP_PKEY_paramgen(ctx, &res) <= 0)
app_bail_out("%s: Generating %s key parameters failed\n",
opt_getprog(), alg != NULL ? alg : "asymmetric");
BIO_printf(bio_err, "%s: Generating %s key parameters failed\n",
opt_getprog(), alg != NULL ? alg : "asymmetric");
return res;
}

2
apps/req.c
View File

@ -663,6 +663,8 @@ int req_main(int argc, char **argv)
EVP_PKEY_CTX_set_cb(genctx, progress_cb);
pkey = app_keygen(genctx, keyalgstr, newkey_len, verbose);
if (pkey == NULL)
goto end;
EVP_PKEY_CTX_free(genctx);
genctx = NULL;