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CVE-2023-53867

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CVE-2023-53867

Published: Dec 24, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: ceph: fix potential use-after-free bug when trimming caps When trimming the caps and just after the 'session->s_cap_lock' is released in ceph_iterate_session_caps() the cap maybe removed by another thread, and when using the stale cap memory in the callbacks it will trigger use-after-free crash. We need to check the existence of the cap just after the 'ci->i_ceph_lock' being acquired. And do nothing if it's already removed.

VendorProductVersions

Linux

Linux

affected
2f2dc053404febedc9c273452d9d518fb31fde72 - < 2b2515b8095cf2149bef44383a99d5b5677f1831
affected
2f2dc053404febedc9c273452d9d518fb31fde72 - < 448875a73e16ba7d81dec9274ce9d33a12d092fb
affected
2f2dc053404febedc9c273452d9d518fb31fde72 - < ae6e935618d99cdba11eab4714092e7e5f13cf7e
affected
2f2dc053404febedc9c273452d9d518fb31fde72 - < aaf67de78807c59c35bafb5003d4fb457c764800

Linux

Linux

affected
2.6.34
unaffected
0 - < 2.6.34
unaffected
6.1.28 - <= 6.1.*
unaffected
6.2.15 - <= 6.2.*
unaffected
6.3.2 - <= 6.3.*

+1 more versions

References

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