Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ceba1832b1b2da0149c51de62a847c00bca1677a before 1ad9166cab6a0f5c0b10344a97bdf749ae11dcbf; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 1e38f7a6cdd68377f8a4189b2fbaec14a6dd5152; affected ceba1832b1b2da0149c51de62a847c00bca1677a before a7e89541d05b98c79a51c0f95df020f8e82b62ed; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 797e5371cf55463b4530bab3fef5f27f7c6657a8; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 1927d0bcd5b81e80971bf6b8eba267508bd1c78b; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 3ba9cf69de50e8abed32b448616c313baa4c5712; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 9fe3839588db7519030377b7dee3f165e654f6c5; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 172a8a996a337206970467e871dd995ac07640b1; affected ceba1832b1b2da0149c51de62a847c00bca1677a before 078aabd567de3d63d37d7673f714e309d369e6e2 |
| Linux / Linux | affected 4.8; unaffected 0 before 4.8; unaffected 5.4.292 through 5.4.*; unaffected 5.10.236 through 5.10.*; unaffected 5.15.180 through 5.15.*; unaffected 6.1.134 through 6.1.*; unaffected 6.6.87 through 6.6.*; unaffected 6.12.23 through 6.12.*; unaffected 6.13.11 through 6.13.*; unaffected 6.14.2 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/1ad9166cab6a0f5c0b10344a97bdf749ae11dcbf
- https://git.kernel.org/stable/c/1e38f7a6cdd68377f8a4189b2fbaec14a6dd5152
- https://git.kernel.org/stable/c/a7e89541d05b98c79a51c0f95df020f8e82b62ed
- https://git.kernel.org/stable/c/797e5371cf55463b4530bab3fef5f27f7c6657a8
- https://git.kernel.org/stable/c/1927d0bcd5b81e80971bf6b8eba267508bd1c78b
- https://git.kernel.org/stable/c/3ba9cf69de50e8abed32b448616c313baa4c5712
- https://git.kernel.org/stable/c/9fe3839588db7519030377b7dee3f165e654f6c5
- https://git.kernel.org/stable/c/172a8a996a337206970467e871dd995ac07640b1
- https://git.kernel.org/stable/c/078aabd567de3d63d37d7673f714e309d369e6e2
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.