CVE-2023-53867

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.

The following products are affected by CVE-2023-53867 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-53867.

URL	Resource
https://git.kernel.org/stable/c/2b2515b8095cf2149bef44383a99d5b5677f1831
https://git.kernel.org/stable/c/448875a73e16ba7d81dec9274ce9d33a12d092fb
https://git.kernel.org/stable/c/aaf67de78807c59c35bafb5003d4fb457c764800
https://git.kernel.org/stable/c/ae6e935618d99cdba11eab4714092e7e5f13cf7e
https://lore.kernel.org/linux-cve-announce/2025122422-CVE-2023-53867-cb3e@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-53867
https://www.cve.org/CVERecord?id=CVE-2023-53867