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 не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix race on per-CQ variable napi work_done After calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be cleared, and another CPU can start napi thread and access per-CQ variable, cq->work_done. If the other thread (for example, from busy_poll) sets it to a value >= budget, this thread will continue to run when it should stop, and cause memory corruption and panic. To fix this issue, save the per-CQ work_done variable in a local variable before napi_complete_done(), so it won't be corrupted by a possible concurrent thread after napi_complete_done(). Also, add a flag bit to advertise to the NIC firmware: the NAPI work_done variable race is fixed, so the driver is able to reliably support features like busy_poll.
Засегнати продукти
- Linux Linux: e1b5683ff62e7b328317aec08869495992053e9d преди fe50a9bbeb1f042e756c5cfa7708112c944368de; e1b5683ff62e7b328317aec08869495992053e9d преди 6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3; e1b5683ff62e7b328317aec08869495992053e9d преди 18010ff776fa42340efc428b3ea6d19b3e7c7b21
- Linux Linux: 5.15; преди 5.15; 5.15.83 до 5.15.*; 6.0.13 до 6.0.*; от 6.1 нататък
История
- 21 октомври 2024 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2022-48985
- https://nvd.nist.gov/vuln/detail/CVE-2022-48985
- https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de
- https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3
- https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21