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Fix reading of past-the-end memory

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The buffer that binlogrouter allocated for the error message was too
small. ASAN happened to catch this.
This commit is contained in:
Markus Mäkelä
2018-07-11 19:26:08 +03:00
parent 4162116109
commit e963f4e82b
1 changed files with 6 additions and 11 deletions
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11
server/modules/routing/binlogrouter/blr_master.cc
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@ -222,17 +222,12 @@ static void blr_start_master(void* data)
router->retry_count++; router->retry_count++;
spinlock_release(&router->lock); spinlock_release(&router->lock);
/* Set reconnection task */ /* Set reconnection task */
static const char master[] = "Master"; std::string name = router->service->name;
char *name = (char *)MXS_MALLOC(strlen(router->service->name) + sizeof(master)); name += " Master";
if (name) hktask_add(name.c_str(),
{
sprintf(name, "%s %s", router->service->name, master);
hktask_add(name,
blr_start_master_in_main, blr_start_master_in_main,
router, router,
connect_retry); connect_retry);
MXS_FREE(name);
}
MXS_ERROR("%s: failure while connecting to master server '%s', " MXS_ERROR("%s: failure while connecting to master server '%s', "
"retrying in %d seconds", "retrying in %d seconds",