Bug 2523250 - CVE-2026-19542 glibc: Fix out-of-bounds array write in tdelete [fedora-all]
Summary: CVE-2026-19542 glibc: Fix out-of-bounds array write in tdelete [fedora-all]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: glibc
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Carlos O'Donell
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["4d7fec79-e362-437b-a5f4-e...
Depends On:
Blocks: CVE-2026-19542
TreeView+ depends on / blocked
 
Reported: 2026-08-25 06:56 UTC by Srikanth Balasubramanian
Modified: 2026-10-16 13:12 UTC (History)
14 users (show)

Fixed In Version: glibc-2.44.9000-1.fc46 glibc-2.44-2.fc45 glibc-2.43-9.fc44 glibc-2.42-17.fc43
Clone Of:
Environment:
Last Closed: 2026-10-16 13:12:03 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Srikanth Balasubramanian 2026-08-25 06:56:28 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

misc: Fix out-of-bounds array write in tdelete (bug 34506)
    
    Allocate the maximum array sizes directly, instead of resizing
    the arrays as needed.  This eliminates alloca usage from the
    function, and fixes the out-of-bounds accesses.  The asserts
    guard against the bug coming back if the balancing of the tree
    turns out not to work correctly.


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