From: YueHaibing
Date: Tue, 28 Apr 2020 16:12:08 +0800
> We should check null before do x25_neigh_put in x25_disconnect,
> otherwise may cause null-ptr-deref like this:
...
> Reported-by: syzbot+6db548b615e5aeefd...@syzkaller.appspotmail.com
> Fixes: 4becb7ee5b3d ("net/x25: Fix x25_neigh refcnt l
> We should check null before do x25_neigh_put in x25_disconnect,
> otherwise may cause null-ptr-deref like this:
Will it be clearer to use the term “null pointer dereference”
in the final commit subject?
Regards,
Markus
We should check null before do x25_neigh_put in x25_disconnect,
otherwise may cause null-ptr-deref like this:
#include
#include
int main() {
int sck_x25;
sck_x25 = socket(AF_X25, SOCK_SEQPACKET, 0);
close(sck_x25);
return 0;
}
BUG: kernel NULL pointer dereference, address:
