[tip: irq/urgent] genirq/irq_sim: Initialize work context pointers properly
From: tip-bot2 for Gyeyoung Baek
Date: Fri Jun 13 2025 - 09:46:35 EST
The following commit has been merged into the irq/urgent branch of tip:
Commit-ID: 8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819
Gitweb: https://git.kernel.org/tip/8a2277a3c9e4cc5398f80821afe7ecbe9bdf2819
Author: Gyeyoung Baek <gye976@xxxxxxxxx>
AuthorDate: Thu, 12 Jun 2025 21:48:27 +09:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Fri, 13 Jun 2025 15:36:35 +02:00
genirq/irq_sim: Initialize work context pointers properly
Initialize `ops` member's pointers properly by using kzalloc() instead of
kmalloc() when allocating the simulation work context. Otherwise the
pointers contain random content leading to invalid dereferencing.
Signed-off-by: Gyeyoung Baek <gye976@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/all/20250612124827.63259-1-gye976@xxxxxxxxx
---
kernel/irq/irq_sim.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/irq/irq_sim.c b/kernel/irq/irq_sim.c
index 1a3d483..ae4c9cb 100644
--- a/kernel/irq/irq_sim.c
+++ b/kernel/irq/irq_sim.c
@@ -202,7 +202,7 @@ struct irq_domain *irq_domain_create_sim_full(struct fwnode_handle *fwnode,
void *data)
{
struct irq_sim_work_ctx *work_ctx __free(kfree) =
- kmalloc(sizeof(*work_ctx), GFP_KERNEL);
+ kzalloc(sizeof(*work_ctx), GFP_KERNEL);
if (!work_ctx)
return ERR_PTR(-ENOMEM);