CVE-2021-4150

5.5 mediumEPSS 0.3%

Medium (5.5) in linux linux kernel. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)
CWE: CWE-416
Published: 2022-03-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

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

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