Resource leak via uncleared folio cache state
Published Sep 4, 2026 · Updated Sep 4, 2026
Resource leak in Linux 6.14 and later affected branches allows attackers to cause unspecified impact via unspecified vectors. In fs/netfs/read_pgpriv2.c, netfs_pgpriv2_copy_to_cache() sets PG_private_2 and takes a folio reference before appending it, but the failure path leaves both uncleared when the folio is never queued for writeback. The published record does not identify how attackers can force the append failure or what operational consequence the retained reference produces.
Summary
What happened
Resource leak in Linux 6.14 and later affected branches allows attackers to cause unspecified impact via unspecified vectors. In fs/netfs/read_pgpriv2.c, netfs_pgpriv2_copy_to_cache() sets PG_private_2 and takes a folio reference before appending it, but the failure path leaves both uncleared when the folio is never queued for writeback. The published record does not identify how attackers can force the append failure or what operational consequence the retained reference produces.
The record
- CVE
- CVE-2026-80898
- Published
- Sep 4, 2026
- Updated
- Sep 4, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- Unavailable
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 4, 2026CVE publishedPublication date reported by the CVE source.
- Sep 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.14
- Affected versionversion=e2d46f2ec332533816417b60933954173f602121 <614b7f4bfcf665a751ae89ff9ae336a1b2d5af4e
- Affected versionversion=e2d46f2ec332533816417b60933954173f602121 <627826ef4208042b0470d1a3fdb729ce35471a0d
- Affected versionversion=e2d46f2ec332533816417b60933954173f602121 <a81fc9266e1c5fef9ccf675a9b44b2f4ab464923
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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