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CVE-2022-2327

Date: July 21, 2022

io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859

Severity Score

Related Resources (6)

https://security.netapp.com/advisory/ntap-20230203-0009/
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=df3f3bb5059d20ef094d6b2f0256c4bf4127a859
https://kernel.dance/#df3f3bb5059d20ef094d6b2f0256c4bf4127a859
https://nvd.nist.gov/vuln/detail/CVE-2022-2327
https://security-tracker.debian.org/tracker/CVE-2022-2327
https://www.mend.io/vulnerability-database/CVE-2022-2327

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

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