Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ed82f35b926b2e505c14b7006473614b8f58b4f4 before fcef9325afeecced693a7438e975e4a3f8e2716f; affected ed82f35b926b2e505c14b7006473614b8f58b4f4 before bc0e8faf90e776a2f1f3967a04e8091e6bdb4977 |
| Linux / Linux | affected 7.0; unaffected 0 before 7.0; unaffected 7.1.8 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.