CVE-2022-49743

MEDIUM

Linux Kernel - Buffer Overflow via Flexible Array memcpy in OverlayFS Export

Title source: llm
STIX 2.1

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)

References (4)

Core 4

Scores

CVSS v3 5.5
EPSS 0.0018
EPSS Percentile 8.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (14)
linux/Kernel 5.11.0 - 5.15.93linux
linux/Kernel 5.16.0 - 6.1.11linux
linux/Kernel 5.5.0 - 5.10.248linux
Linux/Linux < 5.5
Linux/Linux 5.10.248 - 5.10.*
Linux/Linux 5.15.93 - 5.15.*
Linux/Linux 5.5
Linux/Linux 6.1.11 - 6.1.*
Linux/Linux 6.2
Linux/Linux cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 - 012cdef22000f3104e4fa8224ad29fde509b8caf
... and 4 more
Published Mar 27, 2025
Tracked Since Feb 18, 2026