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Merge pull request #7602 from donaldsharp/ldp_use_after_free

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ldpd: Prevent usage after free
This commit is contained in:
Renato Westphal 2020-11-25 14:51:53 -03:00 committed by GitHub
commit 68cd847ee6
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 3 additions and 3 deletions
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6
ldpd/lde.c
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@ -73,6 +73,7 @@ struct ldpd_conf *ldeconf;
struct nbr_tree lde_nbrs = RB_INITIALIZER(&lde_nbrs); struct nbr_tree lde_nbrs = RB_INITIALIZER(&lde_nbrs);
static struct imsgev *iev_ldpe; static struct imsgev *iev_ldpe;
static struct imsgev iev_main_sync_data;
static struct imsgev *iev_main, *iev_main_sync; static struct imsgev *iev_main, *iev_main_sync;
/* lde privileges */ /* lde privileges */
@ -148,8 +149,8 @@ lde(void)
&iev_main->ev_read); &iev_main->ev_read);
iev_main->handler_write = ldp_write_handler; iev_main->handler_write = ldp_write_handler;
if ((iev_main_sync = calloc(1, sizeof(struct imsgev))) == NULL) memset(&iev_main_sync_data, 0, sizeof(iev_main_sync_data));
fatal(NULL); iev_main_sync = &iev_main_sync_data;
imsg_init(&iev_main_sync->ibuf, LDPD_FD_SYNC); imsg_init(&iev_main_sync->ibuf, LDPD_FD_SYNC);
/* create base configuration */ /* create base configuration */
@ -203,7 +204,6 @@ lde_shutdown(void)
if (iev_ldpe) if (iev_ldpe)
free(iev_ldpe); free(iev_ldpe);
free(iev_main); free(iev_main);
free(iev_main_sync);
log_info("label decision engine exiting"); log_info("label decision engine exiting");