Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L H N U H H H 6.7 .0080 56.0 —
AFFECTED Product Versions Fixed n/a n/a – —
TIMELINE Mar 22 Reserved by mitre Mar 22 Published (CNA: mitre) Oct 8 ENRICHED — CVE-2021-28972. Received CVSS 6.7 and CPE data from NVD.
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.
| Date | Event | Detail |
|---|---|---|
| March 22, 2021 | Reserved | Reserved by mitre |
| March 22, 2021 | Published | Published (CNA: mitre) |
| October 8, 2026 | ENRICHED | ENRICHED — CVE-2021-28972. Received CVSS 6.7 and CPE data from NVD. |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | n/a | — | n/a | — |
Authoritative record: CVE-2021-28972 at cve.org
Weaknesses: CWE-120
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-28972 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
