CVE-2026-53321: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: io_uring/napi: cap busy_poll_to 10 msec Currently there's no cap on the maximum amount of time that napi is allowed to poll if no events are found, which can lead to kernel complaints on a task being stuck as there's no conditional rescheduling done within that loop. Just cap it to 10 msec in total, that's already way above any kind of sane value that will reap any benefits, yet low enough that it's nowhere near being able to trigger preemption complaints.

Засегнати продукти

• Linux Linux: 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 преди 42785efe813e5a7d815f3b6be126e1bc0d12d2b6; 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 преди 39767f944a8c9e696566c37ad5b20131406c4b8d; 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 преди cb3af525f8dfb8930f0c123e5755fa967a12d5c1; 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 преди df8599ee18c0e5fe343ffe0b4c379636b8bb839a
• Linux Linux: 6.9; преди 6.9; 6.12.114 до 6.12.*; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; 7.1 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-53321
• https://nvd.nist.gov/vuln/detail/CVE-2026-53321
• https://git.kernel.org/stable/c/42785efe813e5a7d815f3b6be126e1bc0d12d2b6
• https://git.kernel.org/stable/c/39767f944a8c9e696566c37ad5b20131406c4b8d
• https://git.kernel.org/stable/c/cb3af525f8dfb8930f0c123e5755fa967a12d5c1
• https://git.kernel.org/stable/c/df8599ee18c0e5fe343ffe0b4c379636b8bb839a