A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: Google

Published: 2023-06-28T11:08:54.348Z

Updated: 2024-08-02T05:41:00.047Z

Reserved: 2023-03-09T18:05:20.028Z

Link: CVE-2023-1295

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-06-28T12:15:09.340

Modified: 2024-11-21T07:38:51.727

Link: CVE-2023-1295

cve-icon Redhat

Severity : Important

Publid Date: 2021-02-01T00:00:00Z

Links: CVE-2023-1295 - Bugzilla