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scd: avoid memory leaks

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* scd/app-p15.c (send_certinfo): free labelbuf
  (do_sign): goto leave instead of return
* scd/app-piv.c (do_sign): goto leave instead of return, fix typo in
  variable name, avoid using uninitialized variables
* scd/command.c (cmd_genkey): goto leave instead of return

--

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
GnuPG-bug-id: 5393
This commit is contained in:
Jakub Jelen 2021-04-13 14:02:18 +02:00 • committed by Werner Koch
parent fc5fac83b7
commit 27e7bde12e
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
3 changed files with 14 additions and 7 deletions
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5
scd/app-p15.c
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@ -3851,6 +3851,7 @@ send_certinfo (app_t app, ctrl_t ctrl, const char *certtype,
labelbuf, strlen (labelbuf),
NULL, (size_t)0);
xfree (buf);
xfree (labelbuf);
}
return 0;
}
@ -5461,7 +5462,7 @@ do_sign (app_t app, ctrl_t ctrl, const char *keyidstr, int hashalgo,
if (err)
{
log_error ("p15: MSE failed: %s\n", gpg_strerror (err));
return err;
goto leave;
}
/* Now that we have all the information available run the actual PIN
@ -5500,7 +5501,7 @@ do_sign (app_t app, ctrl_t ctrl, const char *keyidstr, int hashalgo,
if (err)
{
log_error ("p15: MSE failed: %s\n", gpg_strerror (err));
return err;
goto leave;
}
if (prkdf->keyalgo == GCRY_PK_RSA && prkdf->keynbits > 2048)