AUGUST 4, 2026
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Case File

CVE-2021-28972

MEDIUM · CVSS 6.7 EPSS 0.86%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-03-22 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-28972
Severity
MEDIUM
CVSS
6.7
EPSS
0.86%
Linux

Original NVD Description

In drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux kernel through 5.11.8, the RPA PCI Hotplug driver has a user-tolerable buffer overflow when writing a new device name to the driver from userspace, allowing userspace to write data to the kernel stack frame directly. This occurs because add_slot_store and remove_slot_store mishandle drc_name '\0' termination, aka CID-cc7a0bb058b8.