Reference page — cumulative record through Monday, October 5, 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 L N U H H H 7.8 .9280 99.8 YES
AFFECTED Product Versions Fixed kernel Linux Kernel 5.17 rc6 – —
TIMELINE Mar 3 Reserved by redhat Mar 7 Published (CNA: redhat) Apr 25 Added to CISA KEV, remediation due 2022-05-16
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
| Date | Event | Detail |
|---|---|---|
| March 3, 2022 | Reserved | Reserved by redhat |
| March 7, 2022 | Published | Published (CNA: redhat) |
| April 25, 2022 | KEV ADDED | Added to CISA KEV, remediation due 2022-05-16 |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | kernel | — | Linux Kernel 5.17 rc6 | — |
Authoritative record: CVE-2022-0847 at cve.org
Weaknesses: CWE-665
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-0847 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 5, 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.
