// For flags

CVE-2022-41222

kernel: mm/mremap.c use-after-free vulnerability

Severity Score

7.0
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.

El archivo mm/mremap.c en el kernel de Linux versiones anteriores a 5.13.3, presenta un uso de memoria previamente liberada por medio de un TLB obsoleto porque un bloqueo rmap no es mantenido durante un movimiento PUD

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code in how a race condition happens between rmap walk and mremap. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Linux stable versions 5.4 and 5.10 suffers from a page use-after-free via stale TLB caused by an rmap lock not held during PUD move.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-09-21 CVE Reserved
  • 2022-09-21 CVE Published
  • 2024-05-12 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
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Linux Kernel
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>= 5.0 < 5.4.211
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-
Affected
Linux
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Linux Kernel
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>= 5.5 < 5.10.137
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-
Affected
Linux
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Linux Kernel
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>= 5.11 < 5.12.18
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-
Affected
Linux
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Linux Kernel
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>= 5.13 < 5.13.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13 < 5.13.3"
-
Affected
Debian
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Debian Linux
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10.0
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-
Affected
Netapp
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Hci Baseboard Management Controller
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h300s
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-
Affected
Netapp
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Hci Baseboard Management Controller
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h410c
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-
Affected
Netapp
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Hci Baseboard Management Controller
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h410s
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-
Affected
Netapp
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Hci Baseboard Management Controller
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h500s
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-
Affected
Netapp
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Hci Baseboard Management Controller
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h700s
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-
Affected
Canonical
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Ubuntu Linux
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18.04
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lts
Affected
Canonical
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Ubuntu Linux
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20.04
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lts
Affected
Canonical
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Ubuntu Linux
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22.04
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lts
Affected