Total vulnerabilities in the database
In the Linux kernel, the following vulnerability has been resolved:
netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets
When calling netlbl_conn_setattr(), addr->sa_family is used to determine the function behavior. If sk is an IPv4 socket, but the connect function is called with an IPv6 address, the function calipso_sock_setattr() is triggered. Inside this function, the following code is executed:
sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL;
Since sk is an IPv4 socket, pinet6 is NULL, leading to a null pointer dereference.
This patch fixes the issue by checking if inet6_sk(sk) returns a NULL pointer before accessing pinet6.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.11 | 5.15.180 |
| linux / linux_kernel | 5.5 | 5.10.236 |
| linux / linux_kernel | 6.13 | 6.13.11 |
| linux / linux_kernel | 6.14 | 6.14.2 |
| linux / linux_kernel | 5.16 | 6.1.134 |
| linux / linux_kernel | 6.2 | 6.6.87 |
| linux / linux_kernel | 4.8 | 5.4.292 |
| linux / linux_kernel | 6.7 | 6.12.23 |