linux: A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING...
CVE-2022-1786 is fixed in 12 products on 1 platform, first by ELSA-2022-9425, released May 24, 2022. It is not reported as exploited. Patch Radar priority: High.
A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| kernel-uek · ol 8 | 0:5.4.17-2136.307.3.4.el8uek | ELSA-2022-9425 | May 24, 2022 |
| kernel-uek-container · ol 8 | 0:5.4.17-2136.307.3.4.el8 | ELSA-2022-9426 | May 24, 2022 |
| kernel-uek-container-debug · ol 8 | 0:5.4.17-2136.307.3.4.el8 | ELSA-2022-9426 | May 24, 2022 |
| kernel-uek-debug · ol 8 | 0:5.4.17-2136.307.3.4.el8uek | ELSA-2022-9425 | May 24, 2022 |
| kernel-uek-debug-devel · ol 8 | 0:5.4.17-2136.307.3.4.el8uek | ELSA-2022-9425 | May 24, 2022 |
| kernel-uek-devel · ol 8 | 0:5.4.17-2136.307.3.4.el8uek | ELSA-2022-9425 | May 24, 2022 |
| kernel-uek-doc · ol 8 | 0:5.4.17-2136.307.3.4.el8uek | ELSA-2022-9425 | May 24, 2022 |
| kernel-uek-tools · ol 8 | 0:5.4.17-2136.307.3.4.el7uek | ELSA-2022-9425 | May 24, 2022 |
| kernel-uek-tools-libs · ol 8 | 0:5.4.17-2136.307.3.4.el7uek | ELSA-2022-9425 | May 24, 2022 |
| linux · Debian 12.15 (bookworm) | 5.14.6-1 | DEBIAN-CVE-2022-1786 | Jun 2, 2022 |
| linux · Debian 13.5 (trixie) | 5.14.6-1 | DEBIAN-CVE-2022-1786 | Jun 2, 2022 |
| linux · Debian 14 | 5.14.6-1 | DEBIAN-CVE-2022-1786 | Jun 2, 2022 |
| perf · ol 8 | 0:5.4.17-2136.307.3.4.el7uek | ELSA-2022-9425 | May 24, 2022 |
| python-perf · ol 8 | 0:5.4.17-2136.307.3.4.el7uek | ELSA-2022-9425 | May 24, 2022 |
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