[PATCH] uprobes: use kzalloc to allocate xol area

From: Sven Schnelle
Date: Tue Sep 03 2024 - 06:23:51 EST


To prevent unitialized members, use kzalloc to allocate
the xol area.

Signed-off-by: Sven Schnelle <svens@xxxxxxxxxxxxx>
---
kernel/events/uprobes.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 73cc47708679..50d7949be2b1 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1489,7 +1489,7 @@ static struct xol_area *__create_xol_area(unsigned long vaddr)
struct xol_area *area;
void *insns;

- area = kmalloc(sizeof(*area), GFP_KERNEL);
+ area = kzalloc(sizeof(*area), GFP_KERNEL);
if (unlikely(!area))
goto out;

@@ -1499,7 +1499,6 @@ static struct xol_area *__create_xol_area(unsigned long vaddr)
goto free_area;

area->xol_mapping.name = "[uprobes]";
- area->xol_mapping.fault = NULL;
area->xol_mapping.pages = area->pages;
area->pages[0] = alloc_page(GFP_HIGHUSER);
if (!area->pages[0])
--
2.43.0