Linux Kernel: Ceph Folio Leak due to Missing Folio_Put
CVE-2026-52960 Published on June 24, 2026
ceph: put folios not suitable for writeback
In the Linux kernel, the following vulnerability has been resolved:
ceph: put folios not suitable for writeback
The batch holds references to the folios (see `filemap_get_folios`,
`folio_batch_release`), so we need to `folio_put` the folios we remove.
Tested on v6.18.
Products Associated with CVE-2026-52960
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Affected Versions
Linux:- Version ce80b76dd32764cc914975777e058d4fae4f0ea0 and below 86921e890fe1dea9791fb70bec552516fd47716a is affected.
- Version ce80b76dd32764cc914975777e058d4fae4f0ea0 and below 544576f0f05c4a759806acddfaaeb686f14fb4b0 is affected.
- Version 6.15 is affected.
- Before 6.15 is unaffected.
- Version 7.0.10, <= 7.0.* is unaffected.
- Version 7.1, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.