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File _service:tar_scm_kernel_repo:backport-Ensure-that-named_server_t-is-properly-initialized.patch of Package bind
From dff843199f3ed60090eb6e9ae60e9278c82bec5f Mon Sep 17 00:00:00 2001 From: Tony Finch <fanf@isc.org> Date: Fri, 9 Sep 2022 08:21:10 +0100 Subject: [PATCH] Ensure that named_server_t is properly initialized Conflict: NA Reference: https://gitlab.isc.org/isc-projects/bind9/-/commit/dff843199f3ed60090eb6e9ae60e9278c82bec5f There was a ubsan error reporting an invalid value for interface_auto (a boolean value cannot be 190) because it was not initialized. To avoid this problem happening again, ensure the whole of the server structure is initialized to zero before setting the (relatively few) non-zero elements. --- bin/named/server.c | 72 ++++++---------------------------------------- 1 files changed, 9 insertions(+), 63 deletions(-) diff --git a/bin/named/server.c b/bin/named/server.c index 54b13f8f54..b4cbd953a9 100644 --- a/bin/named/server.c +++ b/bin/named/server.c @@ -9971,13 +9971,14 @@ named_server_create(isc_mem_t *mctx, named_server_t **serverp) { isc_result_t result; named_server_t *server = isc_mem_get(mctx, sizeof(*server)); - if (server == NULL) { - fatal(server, "allocating server object", ISC_R_NOMEMORY); - } - - server->mctx = mctx; - server->task = NULL; - server->zonemgr = NULL; + *server = (named_server_t){ + .mctx = mctx, + .statsfile = isc_mem_strdup(mctx, "named.stats"), + .bindkeysfile = isc_mem_strdup(mctx, named_g_defaultbindkeys), + .dumpfile = isc_mem_strdup(mctx, "named_dump.db"), + .secrootsfile = isc_mem_strdup(mctx, "named.secroots"), + .recfile = isc_mem_strdup(mctx, "named.recursing"), + }; #ifdef USE_DNSRPS CHECKFATAL(dns_dnsrps_server_create(), "initializing RPZ service " @@ -9985,10 +9986,8 @@ named_server_create(isc_mem_t *mctx, named_server_t **serverp) { #endif /* ifdef USE_DNSRPS */ /* Initialize server data structures. */ - server->interfacemgr = NULL; ISC_LIST_INIT(server->kasplist); ISC_LIST_INIT(server->viewlist); - server->in_roothints = NULL; /* Must be first. */ CHECKFATAL(dst_lib_init(named_g_mctx, named_g_engine), "initializing " @@ -10018,7 +10017,6 @@ named_server_create(isc_mem_t *mctx, named_server_t **serverp) { isc_task_setname(server->task, "server", server); isc_taskmgr_setexcltask(named_g_taskmgr, server->task); - server->sctx = NULL; CHECKFATAL(ns_server_create(mctx, get_matching_view, &server->sctx), "creating server context"); @@ -10042,14 +10040,6 @@ named_server_create(isc_mem_t *mctx, named_server_t **serverp) { isc_app_onrun(named_g_mctx, server->task, run_server, server), "isc_app_onrun"); - server->interface_timer = NULL; - server->heartbeat_timer = NULL; - server->pps_timer = NULL; - server->tat_timer = NULL; - - server->interface_interval = 0; - server->heartbeat_interval = 0; - CHECKFATAL(dns_zonemgr_create(named_g_mctx, named_g_taskmgr, named_g_timermgr, named_g_socketmgr, &server->zonemgr), @@ -10057,37 +10047,6 @@ named_server_create(isc_mem_t *mctx, named_server_t **serverp) { CHECKFATAL(dns_zonemgr_setsize(server->zonemgr, 1000), "dns_zonemgr_" "setsize"); - server->statsfile = isc_mem_strdup(server->mctx, "named.stats"); - CHECKFATAL(server->statsfile == NULL ? ISC_R_NOMEMORY : ISC_R_SUCCESS, - "isc_mem_strdup"); - - server->bindkeysfile = isc_mem_strdup(server->mctx, - named_g_defaultbindkeys); - CHECKFATAL(server->bindkeysfile == NULL ? ISC_R_NOMEMORY - : ISC_R_SUCCESS, - "isc_mem_strdup"); - - server->dumpfile = isc_mem_strdup(server->mctx, "named_dump.db"); - CHECKFATAL(server->dumpfile == NULL ? ISC_R_NOMEMORY : ISC_R_SUCCESS, - "isc_mem_strdup"); - - server->secrootsfile = isc_mem_strdup(server->mctx, "named.secroots"); - CHECKFATAL(server->secrootsfile == NULL ? ISC_R_NOMEMORY - : ISC_R_SUCCESS, - "isc_mem_strdup"); - - server->recfile = isc_mem_strdup(server->mctx, "named.recursing"); - CHECKFATAL(server->recfile == NULL ? ISC_R_NOMEMORY : ISC_R_SUCCESS, - "isc_mem_strdup"); - - server->hostname_set = false; - server->hostname = NULL; - server->version_set = false; - server->version = NULL; - - server->zonestats = NULL; - server->resolverstats = NULL; - server->sockstats = NULL; CHECKFATAL(isc_stats_create(server->mctx, &server->sockstats, isc_sockstatscounter_max), "isc_stats_create"); @@ -10102,28 +10061,15 @@ named_server_create(isc_mem_t *mctx, named_server_t **serverp) { dns_resstatscounter_max), "dns_stats_create (resolver)"); - server->flushonshutdown = false; - - server->controls = NULL; CHECKFATAL(named_controls_create(server, &server->controls), "named_controls_create"); - server->dispatchgen = 0; + ISC_LIST_INIT(server->dispatches); ISC_LIST_INIT(server->statschannels); ISC_LIST_INIT(server->cachelist); - server->sessionkey = NULL; - server->session_keyfile = NULL; - server->session_keyname = NULL; - server->session_keyalg = DST_ALG_UNKNOWN; - server->session_keybits = 0; - - server->lockfile = NULL; - - server->dtenv = NULL; - server->magic = NAMED_SERVER_MAGIC; *serverp = server; } -- 2.23.0
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