Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — ovl: Use "buf" flexible array for memcpy() destination
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0042 35.0 —
AFFECTED
Product Versions Fixed
Linux cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 – —
Linux 5.5 – 5.10.248
TIMELINE
Mar 27 Reserved by Linux
Mar 27 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2022-49743 (Linux). CVSS 7.5 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
ovl: Use "buf" flexible array for memcpy() destination
The "buf" flexible array needs to be the memcpy() destination to avoid
false positive run-time warning from the recent FORTIFY_SOURCE
hardening:
memcpy: detected field-spanning write (size 93) of single field "&fh->fb"
at fs/overlayfs/export.c:799 (size 21)
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| March 27, 2025 | Reserved | Reserved by Linux |
| March 27, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-49743 (Linux). CVSS 7.5 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 | — |
| Linux | Linux | — | 5.5 | 5.10.248 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49743 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 Wednesday, August 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.