Bug 2426079 (CVE-2023-54305) - CVE-2023-54305 kernel: ext4: refuse to create ea block when umounted
Summary: CVE-2023-54305 kernel: ext4: refuse to create ea block when umounted
Keywords:
Status: NEW
Alias: CVE-2023-54305
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: 2025-12-30 13:07 UTC by OSIDB Bzimport
Modified: 2025-12-31 10:50 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-12-30 13:07:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ext4: refuse to create ea block when umounted

The ea block expansion need to access s_root while it is
already set as NULL when umount is triggered. Refuse this
request to avoid panic.
Comment 1 Alexander B 2025-12-31 10:46:42 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123034-CVE-2023-54305-68b4@gregkh/T
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