Bug 2355441 (CVE-2022-49743) - CVE-2022-49743 kernel: ovl: Use "buf" flexible array for memcpy() destination
Summary: CVE-2022-49743 kernel: ovl: Use "buf" flexible array for memcpy() destination
Keywords:
Status: NEW
Alias: CVE-2022-49743
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-03-27 17:01 UTC by OSIDB Bzimport
Modified: 2025-04-01 04:17 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-03-27 17:01:41 UTC 
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)
Comment 1 Robb Gatica 2025-03-28 01:23:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025032758-CVE-2022-49743-a049@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.