CVE-2025-37839
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence == 0 but rather by sb->s_start == 0 (which is set a few lines above). Furthermore 0 is a valid transaction ID so the check can spuriously trigger. Remove the invalid WARN_ON.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-05-09 07:16:04.593000
Last modified
2026-11-05 21:17:54.907000
View original CVE JSON
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-05-09T07:16:04.593",
"lastModified": "2026-11-05T21:17:54.907",
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: remove wrong sb->s_sequence check\n\nJournal emptiness is not determined by sb->s_sequence == 0 but rather by\nsb->s_start == 0 (which is set a few lines above). Furthermore 0 is a\nvalid transaction ID so the check can spuriously trigger. Remove the\ninvalid WARN_ON."
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{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jbd2: eliminar la comprobación incorrecta de sb->s_sequence. El vacío del diario no se determina por sb->s_sequence == 0, sino por sb->s_start == 0 (que se establece unas líneas más arriba). Además, 0 es un ID de transacción válido, por lo que la comprobación puede activarse falsamente. Eliminar el WARN_ON no válido."
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