CVE-2022-49743

low-risk
Published 2025-03-27

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)

Do I need to act?

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0.07% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (4)

https://git.kernel.org/stable/c/012cdef22000f3104e4fa8224ad29fde509b8caf
Patch https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1
Patch https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c
Patch https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal