CVE-2022-49743

MediumCVSS 5.5/10Last modified Oct 15, 2026

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)

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= cbe7fba8edfc8cb8e621599e376f8ac5c224fa72, < 012cdef22000f3104e4fa8224ad29fde509b8caf; >= cbe7fba8edfc8cb8e621599e376f8ac5c224fa72, < a77141a06367825d639ac51b04703d551163e36c; >= cbe7fba8edfc8cb8e621599e376f8ac5c224fa72, < 07a96977b2f462337a9121302de64277b8747ab1; >= cbe7fba8edfc8cb8e621599e376f8ac5c224fa72, < cf8aa9bf97cadf85745506c6a3e244b22c268d63
LinuxLinux5.5

References

Timeline

Published
Mar 27, 2025
Last modified
Oct 15, 2026
NVD status
Modified

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CVE-2022-49743: Medium severity, CVSS 5.5 | Vulnix