diff -up gnupg-2.2.21/common/server-help.c.coverity gnupg-2.2.21/common/server-help.c --- gnupg-2.2.21/common/server-help.c.coverity 2019-02-11 10:59:34.000000000 +0100 +++ gnupg-2.2.21/common/server-help.c 2020-07-20 17:09:57.416148768 +0200 @@ -156,7 +156,7 @@ get_option_value (char *line, const char *pend = 0; *r_value = xtrystrdup (p); *pend = c; - if (!p) + if (!*r_value) return my_error_from_syserror (); return 0; } From 912e77f07d8a42d7ad001eb3df76f6932ccfa857 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Wed, 7 Apr 2021 17:37:51 +0200 Subject: [PATCH GnuPG 01/19] agent: Avoid memory leaks * agent/command.c (cmd_genkey): use goto leave instead of return * agent/cvt-openpgp.c (convert_from_openpgp_main): use goto leave instead of return * agent/genkey.c (agent_ask_new_passphrase): fix typo to free correct pointer (agent_genkey): release memory * agent/gpg-agent.c (check_own_socket): free sockname * agent/protect-tool.c (read_key): free buf (agent_askpin): free passphrase * agent/protect.c (merge_lists): free newlist -- Signed-off-by: Jakub Jelen --- agent/command.c | 2 +- agent/cvt-openpgp.c | 5 ++++- agent/genkey.c | 7 +++++-- agent/gpg-agent.c | 10 ++++++++-- agent/protect-tool.c | 6 +++++- agent/protect.c | 5 ++++- 6 files changed, 27 insertions(+), 8 deletions(-) diff --git a/agent/protect.c b/agent/protect.c index 76ead444b..50b10eb26 100644 --- a/agent/protect.c +++ b/agent/protect.c @@ -949,7 +949,10 @@ merge_lists (const unsigned char *protectedkey, /* Copy the cleartext. */ s = cleartext; if (*s != '(' && s[1] != '(') - return gpg_error (GPG_ERR_BUG); /*we already checked this */ + { + xfree (newlist); + return gpg_error (GPG_ERR_BUG); /*we already checked this */ + } s += 2; startpos = s; while ( *s == '(' ) -- 2.30.2 From 7a707a3eff1c3fbe17a74337776871f408377cee Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Fri, 9 Apr 2021 16:13:07 +0200 Subject: [PATCH GnuPG 03/19] g10: Fix memory leaks * g10/card-util.c (change_pin): free answer on errors (ask_card_keyattr): free answer on error * g10/cpr.c (do_get_from_fd): free string * g10/gpg.c (check_permissions): free dir on weird error * g10/import.c (append_new_uid): release knode * g10/keyedit.c (menu_set_keyserver_url): free answer (menu_set_keyserver_url): free user * g10/keygen.c (print_status_key_not_created): move allocation after sanity check (ask_expire_interval): free answer (card_store_key_with_backup): goto leave instaed of return * g10/keyserver.c (parse_keyserver_uri): goto fail instead of return * g10/revoke.c (gen_desig_revoke): release kdbhd (gen_desig_revoke): free answer * g10/tofu.c (ask_about_binding): free sqerr and response * g10/trustdb.c (ask_ownertrust): free pk -- Signed-off-by: Jakub Jelen --- g10/card-util.c | 14 +++++++++++--- g10/cpr.c | 6 +++++- g10/gpg.c | 1 + g10/import.c | 5 ++++- g10/keyedit.c | 8 +++++++- g10/keygen.c | 15 +++++++++++---- g10/keyserver.c | 2 +- g10/revoke.c | 6 +++++- g10/tofu.c | 4 ++++ g10/trustdb.c | 1 + 10 files changed, 50 insertions(+), 12 deletions(-) diff --git a/g10/card-util.c b/g10/card-util.c index 36f096f06..c7df8380d 100644 --- a/g10/card-util.c +++ b/g10/card-util.c @@ -127,7 +127,7 @@ change_pin (int unblock_v2, int allow_admin) else for (;;) { - char *answer; + char *answer = NULL; tty_printf ("\n"); tty_printf ("1 - change PIN\n" diff --git a/g10/tofu.c b/g10/tofu.c index f49083844..83786a08d 100644 --- a/g10/tofu.c +++ b/g10/tofu.c @@ -1687,6 +1687,8 @@ ask_about_binding (ctrl_t ctrl, GPGSQL_ARG_END); if (rc) { + sqlite3_free (sqerr); + sqerr = NULL; rc = gpg_error (GPG_ERR_GENERAL); break; } -- 2.30.2 From febbe77870b51e4e1158ae9efeaa0f3aad69a495 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Mon, 12 Apr 2021 14:48:59 +0200 Subject: [PATCH GnuPG 05/19] tools: Avoid memory leak sfrom gpgspilt * tools/gpgsplit.c (write_part): free blob -- Signed-off-by: Jakub Jelen --- tools/gpgsplit.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/gpgsplit.c b/tools/gpgsplit.c index cc7bf8ef5..93458068c 100644 --- a/tools/gpgsplit.c +++ b/tools/gpgsplit.c @@ -620,6 +620,7 @@ write_part (FILE *fpin, unsigned long pktlen, } } + xfree (blob); goto ready; } -- 2.30.2 From 7c8048b686a6e811d0b24febf3c5e2528e7881f1 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Tue, 13 Apr 2021 16:23:31 +0200 Subject: [PATCH GnuPG 14/19] dirmgr: Avoid memory leaks * dirmngr/domaininfo.c (insert_or_update): free di_new -- Signed-off-by: Jakub Jelen --- dirmngr/domaininfo.c | 1 + 1 file changed, 1 insertion(+) diff --git a/dirmngr/domaininfo.c b/dirmngr/domaininfo.c index b41aef366..87782b4b1 100644 --- a/dirmngr/domaininfo.c +++ b/dirmngr/domaininfo.c @@ -193,6 +193,7 @@ insert_or_update (const char *domain, log_error ("domaininfo: error allocating helper array: %s\n", gpg_strerror (gpg_err_code_from_syserror ())); drop_extra = bucket; + xfree (di_new); goto leave; } narray = 0; -- 2.30.2 From ab3b8c53993b3305088efde756a44bac6e6492d4 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Tue, 13 Apr 2021 16:34:40 +0200 Subject: [PATCH GnuPG 15/19] scd: Avoid memory leaks and uninitialized memory * scd/app-piv.c (do_decipher): goto leave, initialize outdatalen -- Signed-off-by: Jakub Jelen --- scd/app-piv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/scd/app-piv.c b/scd/app-piv.c index 143cc047a..94257f0ee 100644 --- a/scd/app-piv.c +++ b/scd/app-piv.c @@ -2483,7 +2483,7 @@ do_decipher (app_t app, ctrl_t ctrl, const char *keyidstr, gpg_error_t err; data_object_t dobj; unsigned char *outdata = NULL; - size_t outdatalen; + size_t outdatalen = 0; const unsigned char *s; size_t n; int keyref, mechanism; @@ -2582,7 +2582,7 @@ do_decipher (app_t app, ctrl_t ctrl, const char *keyidstr, /* Now verify the Application PIN. */ err = verify_chv (app, ctrl, 0x80, 0, pincb, pincb_arg); if (err) - return err; + goto leave; /* Build the Dynamic Authentication Template. */ err = concat_tlv_list (0, &apdudata, &apdudatalen, -- 2.30.2 From f182bf91443618323e34261039045a6bde269be5 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Tue, 13 Apr 2021 16:44:48 +0200 Subject: [PATCH GnuPG 16/19] tools: Avoid memory leaks * tools/wks-util.c (wks_cmd_print_wkd_url): Free addrspec on error (wks_cmd_print_wkd_hash): Free addrspec on error -- Signed-off-by: Jakub Jelen --- tools/wks-util.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/tools/wks-util.c b/tools/wks-util.c index 516c7fe00..38dd194ff 100644 --- a/tools/wks-util.c +++ b/tools/wks-util.c @@ -1192,11 +1192,14 @@ gpg_error_t wks_cmd_print_wkd_hash (const char *userid) { gpg_error_t err; - char *addrspec, *fname; + char *addrspec = NULL, *fname; err = wks_fname_from_userid (userid, 1, &fname, &addrspec); if (err) - return err; + { + xfree (addrspec); + return err; + } es_printf ("%s %s\n", fname, addrspec); @@ -1211,12 +1214,15 @@ gpg_error_t wks_cmd_print_wkd_url (const char *userid) { gpg_error_t err; - char *addrspec, *fname; + char *addrspec = NULL, *fname; char *domain; err = wks_fname_from_userid (userid, 1, &fname, &addrspec); if (err) - return err; + { + xfree (addrspec); + return err; + } domain = strchr (addrspec, '@'); if (domain) -- 2.30.2 From 600fabd8268c765d45d48873e7a8610e6dae0966 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Wed, 14 Apr 2021 15:59:12 +0200 Subject: [PATCH GnuPG 17/19] scd: Use the same allocator to free memory * scd/command.c (cmd_getinfo): Use free instead of gcry_free to match the original allocator -- Signed-off-by: Jakub Jelen --- scd/command.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scd/command.c b/scd/command.c index cb0dd379a..9d85c5a41 100644 --- a/scd/command.c +++ b/scd/command.c @@ -1832,7 +1832,8 @@ cmd_getinfo (assuan_context_t ctx, char *line) rc = assuan_send_data (ctx, p, strlen (p)); else rc = gpg_error (GPG_ERR_NO_DATA); - xfree (p); + /* allocated by scd/ccid-driver.c which is not using x*alloc/gcry_* */ + free (p); } else if (!strcmp (line, "deny_admin")) rc = opt.allow_admin? gpg_error (GPG_ERR_GENERAL) : 0; -- 2.30.2 From a94b0deab7c2ece2e512f87a52142454354d77b5 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Wed, 14 Apr 2021 18:49:03 +0200 Subject: [PATCH GnuPG 19/19] g10: Do not allocate memory when we can't return it * g10/keyid.c (fpr20_from_pk): Do not allocate memory when we can't return it -- Signed-off-by: Jakub Jelen --- g10/keyid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/g10/keyid.c b/g10/keyid.c index 522cc9cda..f1af2fd90 100644 --- a/g10/keyid.c +++ b/g10/keyid.c @@ -899,7 +899,7 @@ fpr20_from_pk (PKT_public_key *pk, byte array[20]) compute_fingerprint (pk); if (!array) - array = xmalloc (pk->fprlen); + return; if (pk->fprlen == 32) /* v5 fingerprint */ { -- 2.30.2