CVE-2022-1786: Use After Free
First published: Wed May 18 2022(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 4.19.249-2 4.19.289-2 5.10.197-1 5.10.191-1 6.1.66-1 6.1.69-1 6.5.13-1 6.6.8-1 | |
| Google Android | ||
| Linux Linux kernel | >=5.10<5.12 | |
| Netapp H410c Firmware | ||
| Netapp H410c | ||
| Netapp H300s Firmware | ||
| Netapp H300s | ||
| Netapp H500s Firmware | ||
| Netapp H500s | ||
| Netapp H700s Firmware | ||
| Netapp H700s | ||
| Netapp H410s Firmware | ||
| Netapp H410s |
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Reference Links
- https://www.openwall.com/lists/oss-security/2022/05/24/4
- https://www.openwall.com/lists/oss-security/2022/05/28/1
- https://blog.kylebot.net/2022/10/16/CVE-2022-1786/
- https://security-tracker.debian.org/tracker/CVE-2022-1786
- https://bugzilla.redhat.com/show_bug.cgi?id=2087760
- https://security.netapp.com/advisory/ntap-20220722-0001/
- https://www.debian.org/security/2022/dsa-5161
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2090718
- https://access.redhat.com/security/cve/cve-2022-1786
- https://android.googlesource.com/kernel/common/+/812805ff3b0c7069dc94d4a031960b4e2c80beac
- https://source.android.com/docs/security/bulletin/2022-08-01 (Advisory)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2022-1786.
What is the severity of CVE-2022-1786?
CVE-2022-1786 has a severity value of 7, which is considered high.
Which software is affected by CVE-2022-1786?
CVE-2022-1786 affects the Linux kernel (versions between 5.10 and 5.12) and Netapp H410c Firmware.
How does CVE-2022-1786 affect the system?
CVE-2022-1786 allows a local user to crash or escalate their privileges on the system.
Are there any fixes available for CVE-2022-1786?
Yes, fixes are available. Please refer to the references for more information on how to apply the fixes.
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