In the Linux kernel, the following vulnerability has been resolved: ceph: put folios not suitable for writeback The batch holds references to the…
A vulnerability in the Linux kernel's Ceph subsystem related to improper handling of folios during writeback has been resolved. The issue involves the batch holding references to folios without properly releasing them, which could lead to an availability impact. The fix has been tested on kernel version 6.18. This affects multiple Ubuntu versions prior to specific patched kernel releases.
AI Analysis
Technical Summary
The Linux kernel contained a vulnerability in the Ceph filesystem code where folios removed from a batch were not properly put (released), potentially causing resource management issues. Specifically, the batch holds references to folios (via filemap_get_folios and folio_batch_release), but the code failed to call folio_put on removed folios. This could lead to an availability impact due to resource leaks or exhaustion. The vulnerability was resolved and tested on kernel version 6.18. Affected versions include various Ubuntu kernel versions prior to 7.0.0-28.28~24.04.1, 7.0.0-28.28, 7.0.0-1009.9, and 7.0.0-1010.10.
Potential Impact
The vulnerability impacts system availability (denial of service) due to improper resource management in the Ceph filesystem code. There is no confidentiality or integrity impact reported. No known exploits in the wild have been identified.
Mitigation Recommendations
A fix is available in Linux kernel versions 7.0.0-28.28~24.04.1 and later, as well as in the other specified patched Ubuntu kernel versions. Users should upgrade to these fixed kernel versions to remediate the vulnerability. Patch status is confirmed by the provided affected version information. No additional mitigation is indicated.
In the Linux kernel, the following vulnerability has been resolved: ceph: put folios not suitable for writeback The batch holds references to the…
Description
A vulnerability in the Linux kernel's Ceph subsystem related to improper handling of folios during writeback has been resolved. The issue involves the batch holding references to folios without properly releasing them, which could lead to an availability impact. The fix has been tested on kernel version 6.18. This affects multiple Ubuntu versions prior to specific patched kernel releases.
CVSS v3.1
Score 7.5high
Affected software
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protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resolutepkg:deb/ubuntu/[email protected]?arch=source&distro=resoluteRun on your own infrastructure? 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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel contained a vulnerability in the Ceph filesystem code where folios removed from a batch were not properly put (released), potentially causing resource management issues. Specifically, the batch holds references to folios (via filemap_get_folios and folio_batch_release), but the code failed to call folio_put on removed folios. This could lead to an availability impact due to resource leaks or exhaustion. The vulnerability was resolved and tested on kernel version 6.18. Affected versions include various Ubuntu kernel versions prior to 7.0.0-28.28~24.04.1, 7.0.0-28.28, 7.0.0-1009.9, and 7.0.0-1010.10.
Potential Impact
The vulnerability impacts system availability (denial of service) due to improper resource management in the Ceph filesystem code. There is no confidentiality or integrity impact reported. No known exploits in the wild have been identified.
Mitigation Recommendations
A fix is available in Linux kernel versions 7.0.0-28.28~24.04.1 and later, as well as in the other specified patched Ubuntu kernel versions. Users should upgrade to these fixed kernel versions to remediate the vulnerability. Patch status is confirmed by the provided affected version information. No additional mitigation is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-52960
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:16.04:LTS","Ubuntu:Pro:FIPS:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:FIPS-updates:18.04:LTS","Ubuntu:Pro:FIPS:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:20.04:LTS","Ubuntu:Pro:FIPS-updates:20.04:LTS","Ubuntu:Pro:FIPS:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:Nvidia-BlueField:22.04:LTS","Ubuntu:Pro:FIPS-preview:22.04:LTS","Ubuntu:Pro:FIPS-updates:22.04:LTS","Ubuntu:Pro:Realtime:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Nvidia-BlueField:24.04:LTS","Ubuntu:Pro:FIPS-updates:24.04:LTS","Ubuntu:Pro:Realtime:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 3.1
Threat ID: 6a5a016391ae9bcd3f802908
Added to database: 07/17/2026, 10:18:11 UTC
Last enriched: 07/30/2026, 20:37:03 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 1
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