CVE-2025-39800
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: abort transaction on unexpected eb generation at btrfs_copy_root() If we find an unexpected generation for the extent buffer we are cloning at btrfs_copy_root(), we just WARN_ON() and don't error out and abort the transaction, meaning we allow to persist metadata with an unexpected generation. Instead of warning only, abort the transaction and return -EUCLEAN.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-15 13:15:35.467000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
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"published": "2025-09-15T13:15:35.467",
"lastModified": "2026-10-19T21:10:00.160",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: abort transaction on unexpected eb generation at btrfs_copy_root()\n\nIf we find an unexpected generation for the extent buffer we are cloning\nat btrfs_copy_root(), we just WARN_ON() and don't error out and abort the\ntransaction, meaning we allow to persist metadata with an unexpected\ngeneration. Instead of warning only, abort the transaction and return\n-EUCLEAN."
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbtrfs: abortar transacción en generación de eb inesperada en btrfs_copy_root()\n\nSi encontramos una generación inesperada para el búfer de extensión que estamos clonando en btrfs_copy_root(), simplemente WARN_ON() y no generamos un error ni abortamos la transacción, lo que significa que permitimos que persistan metadatos con una generación inesperada. En lugar de solo advertir, abortar la transacción y devolver -EUCLEAN."
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