CVE-2021-4150

MEDIUM
5.5
CVSS Score
Published: March 23, 2022 at 07:46 PM UTC
Updated: June 17, 2026 at 04:19 AM UTC
2 products affected across 2 vendorsLinux KernelKernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges could cause a denial of service on the system. The issue results from the lack of code cleanup when device_add call fails when adding a partition to the disk.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 5.15, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_MISCIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2025938
x_refsource_MISCExploitThird Party Advisory
https://lkml.org/lkml/2021/10/18/485
x_refsource_MISCExploitThird Party Advisory
https://lkml.org/lkml/2021/9/6/781

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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