Hi,
I simplified the C reproducer as follows:
#include
#include
#include
#include
#include
#include
#include
#include
struct param {
uint8_t type;
struct tiocl_selection ts;
};
int main()
{
write(1, "executing program\n", sizeof("executing program\n") - 1);
> I think this patch just hides the real problem.
> How could putcs have become NULL ?
>
> Helge
Oh, you are right!
I will figure it out.
Best,
Qianqiang Liu
On 9/16/24 03:10, Qianqiang Liu wrote:
syzbot has found a NULL pointer dereference bug in fbcon [1].
This issue is caused by ops->putcs being a NULL pointer.
We need to check the pointer before using it.
[1] https://syzkaller.appspot.com/bug?extid=3d613ae53c031502687a
Cc: sta...@vger.kernel.or
syzbot has found a NULL pointer dereference bug in fbcon [1].
This issue is caused by ops->putcs being a NULL pointer.
We need to check the pointer before using it.
[1] https://syzkaller.appspot.com/bug?extid=3d613ae53c031502687a
Cc: sta...@vger.kernel.org
Reported-and-tested-by: syzbot+3d613ae5
