CVE-2024-56564: ceph: pass cred pointer to ceph_mds_auth_match()
In the Linux kernel, the following vulnerability has been resolved:
ceph: pass cred pointer to cephmdsauthmatch()
This eliminates a redundant getcurrentcred() call, because cephmdscheckaccess() has already obtained this pointer.
As a side effect, this also fixes a reference leak in cephmdsauthmatch(): by omitting the getcurrentcred() call, no additional cred reference is taken.
Other sources
This CVE was automatically created from a reference found in an email or other text. If you are reading this, then this CVE entry is probably erroneous, since this text should be replaced by the official CVE description automatically.
— Launchpad
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2024-56564?
CVE-2024-56564 has been classified with a moderate severity due to its impact on the Linux kernel's ceph functionality.
How do I fix CVE-2024-56564?
To mitigate CVE-2024-56564, update the Linux kernel to one of the patched versions, such as 5.10.223-1 or 6.12.20-1.
What systems are affected by CVE-2024-56564?
CVE-2024-56564 affects various versions of the Linux kernel, primarily impacting systems utilizing ceph.
Is CVE-2024-56564 exploited in the wild?
As of now, there is no public indication that CVE-2024-56564 has been actively exploited in the wild.
What could happen if CVE-2024-56564 is not addressed?
If left unaddressed, CVE-2024-56564 may lead to potential access control issues in the ceph file system.