CVE-2026-80713 - io_uring: preserve task restrictions across exec

CVE-2026-80713 - io_uring: preserve task restrictions across exec

https://cvefeed.io/rssfeed/latest.atom / Fri, 08/28/2026 - 13:28
CVE ID :CVE-2026-80713
Published : Aug. 28, 2026, 8:16 a.m. | 2 hours, 13 minutes ago
Description :In the Linux kernel, the following vulnerability has been resolved: io_uring: preserve task restrictions across exec Per-task restrictions apply to all rings created by a task. Once installed, they should not be dropped across exec. For a task that has used io_uring, the exec cancellation path calls __io_uring_free(). This frees both the task context and the per-task restriction, so a ring created after exec is unrestricted. Split task context cleanup into io_uring_free_tctx(), and use it from the exec cancellation path. Keep __io_uring_free() for final task cleanup, where both the context and restriction are released.
Severity: 0.0 | NA
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