CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() If a message of type CEPH_MSG_AUTH_REPLY contains a zero value for both protocol and result, this is currently not treated as an error. In case of ac->negotiating == true and ac->protocol > 0, this leads to setting ac->protocol = 0 and ac->ops = NULL. Thereafter, the check for ac->protocol != protocol returns false, and init_protocol() is not called. Subsequently, ac->ops->handle_reply() is called, which leads to a null pointer dereference, because ac->ops is still NULL. This patch changes the check for ac->protocol != protocol to !ac->protocol, as this also includes the case when the protocol was set to zero in the message. This causes the message to be treated as containing a bad auth protocol.
Засегнати продукти
- Linux Linux: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди 9ded62c302c0342efdb5eda3bf6e75720caad0df; 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди f101271fcf55d7eacfefd610b51ec65f46ba8118; 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди 4b2738b93edad661178340239de657d876b73d3d; 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди 927e4bd5692f2a4901808822981fb2c8d4456548; 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди 016bc663657366d386993f63eb31072eb45a2b77; 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди 8f2be7285941a33a9f72579a23b96392f83c758e; 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc преди 5199c125d25aeae8615c4fc31652cc0fe624338e
- Linux Linux: 2.6.34; преди 2.6.34; 5.15.209 до 5.15.*; 6.1.175 до 6.1.*; 6.6.140 до 6.6.*; 6.12.86 до 6.12.*; 6.18.27 до 6.18.*; 7.0.4 до 7.0.*; от 7.1 нататък
Вид слабост
История
- 27 май 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-46024
- https://nvd.nist.gov/vuln/detail/CVE-2026-46024
- https://git.kernel.org/stable/c/9ded62c302c0342efdb5eda3bf6e75720caad0df
- https://git.kernel.org/stable/c/f101271fcf55d7eacfefd610b51ec65f46ba8118
- https://git.kernel.org/stable/c/4b2738b93edad661178340239de657d876b73d3d
- https://git.kernel.org/stable/c/927e4bd5692f2a4901808822981fb2c8d4456548
- https://git.kernel.org/stable/c/016bc663657366d386993f63eb31072eb45a2b77
- https://git.kernel.org/stable/c/8f2be7285941a33a9f72579a23b96392f83c758e
- https://git.kernel.org/stable/c/5199c125d25aeae8615c4fc31652cc0fe624338e