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Code Issues Releases Wiki Activity

Fix scheduler crash when cancelling items with NULL names (#9444)

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This commit is contained in:
J. Nick Koston
2025-07-11 09:11:45 -10:00
committed by GitHub
parent 475fe60f27
commit bef20b60d0
4 changed files with 111 additions and 15 deletions
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21
esphome/core/scheduler.cpp
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@@ -66,10 +66,8 @@ void HOT Scheduler::set_timer_common_(Component *component, SchedulerItem::Type
if (delay == SCHEDULER_DONT_RUN) {
// Still need to cancel existing timer if name is not empty
if (this->is_name_valid_(name_cstr)) {
LockGuard guard{this->lock_};
this->cancel_item_locked_(component, name_cstr, type);
}
LockGuard guard{this->lock_};
this->cancel_item_locked_(component, name_cstr, type);
return;
}
@@ -125,10 +123,8 @@ void HOT Scheduler::set_timer_common_(Component *component, SchedulerItem::Type
LockGuard guard{this->lock_};
// If name is provided, do atomic cancel-and-add
if (this->is_name_valid_(name_cstr)) {
// Cancel existing items
this->cancel_item_locked_(component, name_cstr, type);
}
// Cancel existing items
this->cancel_item_locked_(component, name_cstr, type);
// Add new item directly to to_add_
// since we have the lock held
this->to_add_.push_back(std::move(item));
@@ -442,10 +438,6 @@ bool HOT Scheduler::cancel_item_(Component *component, bool is_static_string, co
// Get the name as const char*
const char *name_cstr = this->get_name_cstr_(is_static_string, name_ptr);
// Handle null or empty names
if (!this->is_name_valid_(name_cstr))
return false;
// obtain lock because this function iterates and can be called from non-loop task context
LockGuard guard{this->lock_};
return this->cancel_item_locked_(component, name_cstr, type);
@@ -453,6 +445,11 @@ bool HOT Scheduler::cancel_item_(Component *component, bool is_static_string, co
// Helper to cancel items by name - must be called with lock held
bool HOT Scheduler::cancel_item_locked_(Component *component, const char *name_cstr, SchedulerItem::Type type) {
// Early return if name is invalid - no items to cancel
if (name_cstr == nullptr || name_cstr[0] == '\0') {
return false;
}
size_t total_cancelled = 0;
// Check all containers for matching items