Home/CVE/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

CVE-2022-1786

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_

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.

HIGH · CVSS 7.8 EPSS 0.01145
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
CWE-843Access of Resource Using Incompatible Type ('Type Confusion')
▤

Affected Products & Versions

6
linux kernel>= 5.10 and < 5.12
netapp h410c firmwareall versions
netapp h300s firmwareall versions
netapp h500s firmwareall versions
netapp h700s firmwareall versions
netapp h410s firmwareall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Jun 2022 · 02:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

3
android-securityANDROID-2022-10-01High
android-securityANDROID-2022-08-01High
msrcCVE-2022-1786
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=2087760Issue TrackingThird Party Advisory
https://security.netapp.com/advisory/ntap-20220722-0001/Third Party Advisory
https://www.debian.org/security/2022/dsa-5161Third Party Advisory
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