CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се от съседна мрежа, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: net/iucv: take a reference on the socket found in afiucv_hs_rcv() afiucv_hs_rcv() looks up the destination socket under iucv_sk_list.lock, drops the lock, and then passes the socket to the afiucv_hs_callback_*() handlers without holding a reference. AF_IUCV sockets are not RCU-protected and are freed synchronously by iucv_sock_kill() -> sock_put(), so a concurrent close can free the socket in the window between read_unlock() and the handler, which then dereferences freed memory (for example sk->sk_data_ready() in afiucv_hs_callback_syn()). Take a reference with sock_hold() while the socket is still on the list and release it with sock_put() once the handler has run.
Засегнати продукти
- Linux Linux: 3881ac441f642d56503818123446f7298442236b преди 5739be5c19495d709d902a2912c9102ce78740d5; 3881ac441f642d56503818123446f7298442236b преди bc6c6e546ffff8865daaeb622ef348c2d481e80f; 3881ac441f642d56503818123446f7298442236b преди e3e0679fc950191aff8f27fa78abcfc2462cff4a; 3881ac441f642d56503818123446f7298442236b преди 4dc0e63abf8bc7ba8892e617c1fb8b204361e022; 3881ac441f642d56503818123446f7298442236b преди 1801cb20a5025a787d6853e19c38db138344b4b4; 3881ac441f642d56503818123446f7298442236b преди c75a950e77356e526672cba4584080c6c8b793b6; 3881ac441f642d56503818123446f7298442236b преди 5595ea59cdf29182cf6a270cacc1426c57b603de; 3881ac441f642d56503818123446f7298442236b преди 4fa349156043dc119721d067329714179f501749
- Linux Linux: 3.2; преди 3.2; 5.10.265 до 5.10.*; 5.15.216 до 5.15.*; 6.1.183 до 6.1.*; 6.6.148 до 6.6.*; 6.12.101 до 6.12.*; 6.18.42 до 6.18.*; 7.1.6 до 7.1.*; 7.2 до *
Вид слабост
История
- 10 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-68397
- https://nvd.nist.gov/vuln/detail/CVE-2026-68397
- https://git.kernel.org/stable/c/5739be5c19495d709d902a2912c9102ce78740d5
- https://git.kernel.org/stable/c/bc6c6e546ffff8865daaeb622ef348c2d481e80f
- https://git.kernel.org/stable/c/e3e0679fc950191aff8f27fa78abcfc2462cff4a
- https://git.kernel.org/stable/c/4dc0e63abf8bc7ba8892e617c1fb8b204361e022
- https://git.kernel.org/stable/c/1801cb20a5025a787d6853e19c38db138344b4b4
- https://git.kernel.org/stable/c/c75a950e77356e526672cba4584080c6c8b793b6
- https://git.kernel.org/stable/c/5595ea59cdf29182cf6a270cacc1426c57b603de
- https://git.kernel.org/stable/c/4fa349156043dc119721d067329714179f501749