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cvelistMitreCVELIST:CVE-2021-28972
HistoryMar 22, 2021 - 4:53 p.m.

CVE-2021-28972

2021-03-2216:53:17
mitre
www.cve.org
6
linux kernel
buffer overflow
rpa pci hotplug driver

AI Score

7.7

Confidence

High

EPSS

0.001

Percentile

19.0%

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.