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CVE Vulnerability Details :
CVE-2022-49743
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-27 Mar, 2025 | 16:42
Updated At-19 Jan, 2026 | 12:17
Rejected At-
▼CVE Numbering Authority (CNA)
ovl: Use "buf" flexible array for memcpy() destination

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)

Affected Products
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/overlayfs/export.c
  • fs/overlayfs/overlayfs.h
Default Status
unaffected
Versions
Affected
  • From cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 before 012cdef22000f3104e4fa8224ad29fde509b8caf (git)
  • From cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 before a77141a06367825d639ac51b04703d551163e36c (git)
  • From cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 before 07a96977b2f462337a9121302de64277b8747ab1 (git)
  • From cbe7fba8edfc8cb8e621599e376f8ac5c224fa72 before cf8aa9bf97cadf85745506c6a3e244b22c268d63 (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • fs/overlayfs/export.c
  • fs/overlayfs/overlayfs.h
Default Status
affected
Versions
Affected
  • 5.5
Unaffected
  • From 0 before 5.5 (semver)
  • From 5.10.248 through 5.10.* (semver)
  • From 5.15.93 through 5.15.* (semver)
  • From 6.1.11 through 6.1.* (semver)
  • From 6.2 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/012cdef22000f3104e4fa8224ad29fde509b8caf
N/A
https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c
N/A
https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1
N/A
https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63
N/A
Hyperlink: https://git.kernel.org/stable/c/012cdef22000f3104e4fa8224ad29fde509b8caf
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/a77141a06367825d639ac51b04703d551163e36c
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/07a96977b2f462337a9121302de64277b8747ab1
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63
Resource: N/A
Details not found