CVE-2026-80713

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.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.0 / Impact : 5.8

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://git.kernel.org/stable/c/bc0e8faf90e776a2f1f3967a04e8091e6bdb4977
https://git.kernel.org/stable/c/fcef9325afeecced693a7438e975e4a3f8e2716f

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 08:16

Updated : 2026-08-29 07:16

NVD link : CVE-2026-80713

Mitre link : CVE-2026-80713

CVE.ORG link : CVE-2026-80713

JSON object : View

Products Affected

No product.

CWE

No CWE.

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