VULNERABILITY INTELLIGENCE

CVE-2021-28972

CVSS score6.7 MEDIUM
EPSS probability0.80%
CISA KEVNot currently listed
Published2021-03-22
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • nvd@nist.gov: CWE-120

Primary references