A time-of-check to time-of-use issue exists in io_uring...
High severity
Unreviewed
Published
Jun 28, 2023
to the GitHub Advisory Database
•
Updated Dec 13, 2023
Description
Published by the National Vulnerability Database
Jun 28, 2023
Published to the GitHub Advisory Database
Jun 28, 2023
Last updated
Dec 13, 2023
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.
References