CVE-2022-24122
HIGH
7.8
CVSS Score
Published: January 29, 2022 at 09:33 PM UTC
Updated: June 17, 2026 at 04:31 AM UTC
18 products affected across 3 vendorsLinux KernelFedoraH700S Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 1%
Description
kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
5.14 ≤ v < 5.15.195.16 ≤ v < 5.16.5
Affected range stops below 5.15.19, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.16.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5
- https://github.com/torvalds/linux/commit/f9d87929d451d3e649699d0f1d74f71f77ad38f5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B/
References (6)
x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/f9d87929d451d3e649699d0f1d74f71f77ad38f5Vendor Advisoryx_refsource_FEDORAMailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL/Vendor Advisoryx_refsource_FEDORAMailing List
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B/x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20220221-0001/x_refsource_MISCExploitMailing ListThird Party Advisory
Source: [email protected]
https://www.openwall.com/lists/oss-security/2022/01/29/1CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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