aboutsummaryrefslogtreecommitdiff
path: root/libc/stack.c
diff options
context:
space:
mode:
authorMarvin Borner2021-02-26 14:51:13 +0100
committerMarvin Borner2021-02-26 14:51:13 +0100
commit0f00932955521c3c2fb8140176ab72f22172c298 (patch)
tree99561c0254d14c0c3536f900ee83b0341a5c8a1b /libc/stack.c
parentdec16faf32e75d613e20cac175b8a0c2d3612b94 (diff)
Started UBSan and stack-smashing check support
Diffstat (limited to 'libc/stack.c')
-rw-r--r--libc/stack.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libc/stack.c b/libc/stack.c
index e86a8c6..0cbb69d 100644
--- a/libc/stack.c
+++ b/libc/stack.c
@@ -102,7 +102,8 @@ void *stack_pop(struct stack *stack)
struct stack_node *prev = stack->tail;
- stack->tail->prev->next = NULL;
+ if (stack->tail->prev)
+ stack->tail->prev->next = NULL;
stack->tail = stack->tail->prev;
void *data = prev->data;