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: Bluetooth: ISO: fix refcounting of iso_conn iso_conn_del() and iso_chan_del() have a race that results to double-put of iso_conn: [Task hdev->workqueue] [Task 2] iso_conn_del iso_chan_del iso_conn_hold_unless_zero iso_conn_lock iso_conn_lock conn->sk = NULL iso_conn_unlock sk = iso_sock_hold(conn) <---------´ if (!sk) iso_conn_put iso_conn_put iso_conn_put /* UAF */ The extra put for !sk in iso_conn_del() is currently required since failing iso_chan_add() may leave iso_conn not associated with any sk. Fix by having iso_pi(sk)->conn own refcount when non-NULL, so iso_conn_del does not need to put it. Adjust the iso_conn_add() refcounting so that conn is put if it does not get associated with an sk.
Засегнати продукти
- Linux Linux: a58d0f5dac322e16cc75334d000666512341bde5 преди 42c8bd6ac81e21200bb90f1eaf43d19352eec6d7; dc26097bdb864a0d5955b9a25e43376ffc1af99b преди 3b921533e8aa95b77aadcf31737595578e735f3c; dc26097bdb864a0d5955b9a25e43376ffc1af99b преди 8208b4939afb0a1977fffe902c3ca42fe0f3baaa; dc26097bdb864a0d5955b9a25e43376ffc1af99b преди fdfde532ab1caa165fcd8985001157ac8b4db365; f53e7489273dc2bb307bf50f319b3762d45534f0; 6.12.2 преди 6.12.113; 6.11.11 преди 6.12
- Linux Linux: 6.13; преди 6.13; 6.12.113 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; от 7.2 нататък
История
- 15 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-74534
- https://nvd.nist.gov/vuln/detail/CVE-2026-74534
- https://git.kernel.org/stable/c/42c8bd6ac81e21200bb90f1eaf43d19352eec6d7
- https://git.kernel.org/stable/c/3b921533e8aa95b77aadcf31737595578e735f3c
- https://git.kernel.org/stable/c/8208b4939afb0a1977fffe902c3ca42fe0f3baaa
- https://git.kernel.org/stable/c/fdfde532ab1caa165fcd8985001157ac8b4db365