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* grub-core/commands/verify.c (free_pk): Plug memory leak.

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(grub_load_public_key): Likewise.
	(grub_verify_signature_real): Likewise.
	(grub_cmd_verify_signature): Likewise.
This commit is contained in:
Vladimir Serbinenko 2013-11-18 02:40:17 +01:00
parent da93d6753b
commit 7bbb60cfbd
2 changed files with 30 additions and 7 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2013-11-18 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/commands/verify.c (free_pk): Plug memory leak.
(grub_load_public_key): Likewise.
(grub_verify_signature_real): Likewise.
(grub_cmd_verify_signature): Likewise.
2013-11-18 Vladimir Serbinenko <phcoder@gmail.com>
* grub-core/commands/legacycfg.c (grub_legacy_check_md5_password): Plug

28
grub-core/commands/verify.c
View file

@ -192,6 +192,10 @@ free_pk (struct grub_public_key *pk)
struct grub_public_subkey *nsk, *sk;
for (sk = pk->subkeys; sk; sk = nsk)
{
grub_size_t i;
for (i = 0; i < ARRAY_SIZE (sk->mpis); i++)
if (sk->mpis[i])
gcry_mpi_release (sk->mpis[i]);
nsk = sk->next;
grub_free (sk);
}
@ -244,6 +248,7 @@ grub_load_public_key (grub_file_t f)
if (type == 0xff)
{
grub_free (fingerprint_context);
grub_free (buffer);
return ret;
}
@ -631,6 +636,9 @@ grub_verify_signature_real (char *buf, grub_size_t size,
if ((*pkalgos[pk].algo)->verify (0, hmpi, mpis, sk->mpis, 0, 0))
goto fail;
grub_free (context);
grub_free (readbuf);
return GRUB_ERR_NONE;
fail:
@ -736,8 +744,8 @@ static grub_err_t
grub_cmd_verify_signature (grub_extcmd_context_t ctxt,
int argc, char **args)
{
grub_file_t f, sig;
grub_err_t err;
grub_file_t f = NULL, sig = NULL;
grub_err_t err = GRUB_ERR_NONE;
struct grub_public_key *pk = NULL;
grub_dprintf ("crypt", "alive\n");
@ -768,19 +776,27 @@ grub_cmd_verify_signature (grub_extcmd_context_t ctxt,
grub_file_filter_disable_all ();
f = grub_file_open (args[0]);
if (!f)
return grub_errno;
{
err = grub_errno;
goto fail;
}
grub_file_filter_disable_all ();
sig = grub_file_open (args[1]);
if (!sig)
{
grub_file_close (f);
return grub_errno;
err = grub_errno;
goto fail;
}
err = grub_verify_signature (f, sig, pk);
grub_file_close (f);
fail:
if (sig)
grub_file_close (sig);
if (f)
grub_file_close (f);
if (pk)
free_pk (pk);
return err;
}