Bug 2450317 - CVE-2026-4647 gdb: Out-of-Bounds Read in XCOFF Relocation Processing in GNU Binutils BFD Library [fedora-all]
Summary: CVE-2026-4647 gdb: Out-of-Bounds Read in XCOFF Relocation Processing in GNU B...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: gdb
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Kevin Buettner
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["1042e5e4-7ebc-44fa-8e5f-b...
Depends On:
Blocks: CVE-2026-4647
TreeView+ depends on / blocked
 
Reported: 2026-03-23 13:06 UTC by Abhishek Raj
Modified: 2026-03-24 19:00 UTC (History)
9 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-03-24 19:00:40 UTC
Type: ---
Embargoed:


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Description Abhishek Raj 2026-03-23 13:06:00 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.

Comment 1 Kevin Buettner 2026-03-24 19:00:40 UTC
Closing, as GDB is not affected by this problem. The upstream fix posted by
Alan Modra is to xcoff_ppc_relocate_section() and xcoff64_ppc_relocate_section()
in bfd/coff-rs6000.c and bfd/coff64-rs6000.c. These functions are part of the
BFD XCOFF linker backend and are only called during linking operations.
GDB reads XCOFF binaries for symbol and debug information but does not perform
linking or relocation processing, so it never calls these functions.

Additionally, this vulnerability would not affect Fedora systems regardless,
as Fedora uses the ELF format rather than XCOFF.


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