2413823 – (CVE-2025-54771) CVE-2025-54771 grub2: Use-after-free in grub_file_close()

Bug 2413823 (CVE-2025-54771) - CVE-2025-54771 grub2: Use-after-free in grub_file_close()

Summary: CVE-2025-54771 grub2: Use-after-free in grub_file_close()

Keywords:
Status:	NEW
Alias:	CVE-2025-54771
Deadline:	2025-11-18
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-11-10 19:49 UTC by OSIDB Bzimport
Modified:	2025-11-18 18:14 UTC (History)
CC List:	1 user (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2025-11-10 19:49:05 UTC

When closing a file the grub_file_close() misses to dereference the filesystem structure leading to possible invalid reference to the file->fs->mod pointer. It may lead to a use-after-free vulnerability.

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