UBUNTU-CVE-2022-1786
Advisory lineage Upstream: 1 Downstream: 0
Upstream
Published: 02 Jun 2022, 14:15
Last modified:24 Oct 2025, 04:52
Vulnerability Summary
Overall Risk (default)
medium
31/100 CVSS Score
7.8 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
02 Jun 2022, 14:15
Published
Vulnerability first disclosed
24 Oct 2025, 04:52
Last Modified
Vulnerability information updated
Description
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.
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Systems
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-azure
all
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-edge
all
- ubuntu•linux-gcp
all
- ubuntu•linux-gcp-5.11
all
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.8
all
- ubuntu•linux-gke-4.15
all
- ubuntu•linux-hwe
all
- ubuntu•linux-hwe-5.11
all
- ubuntu•linux-hwe-5.8
all
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-oem
all
- ubuntu•linux-oem-5.10
all
- ubuntu•linux-oem-5.13
all
- ubuntu•linux-oem-5.6
all
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.11
all
- ubuntu•linux-oracle-5.3
all
- ubuntu•linux-oracle-5.8
all
- ubuntu•linux-raspi2
all
- ubuntu•linux-riscv
all
- ubuntu•linux-riscv-5.11
all
- ubuntu•linux-riscv-5.8
all