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CVE-2026-43304 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN When decoding the key, verify that the key material would fit into a fixed-size buffer in process_auth_done() and generally has a sane length. The new CEPH_MAX_KEY_LEN check replaces the existing check for a key with no key material which is a) not universal since CEPH_CRYPTO_NONE has to be excluded and b) doesn't provide much value since a smaller than needed key is just as invalid as no key -- this has to be handled elsewhere anyway.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1b275bd49e58752efb83767a5d1aed41356c5e64 kernel.org
https://git.kernel.org/stable/c/6405e8c680974bb74e2c98d5249fb52c7b12a6c6 kernel.org
https://git.kernel.org/stable/c/8d745d38c88ecbed95f6b2b39857bf89f35a3244 kernel.org
https://git.kernel.org/stable/c/ac431d597a9bdfc2ba6b314813f29a6ef2b4a3bf kernel.org
https://git.kernel.org/stable/c/c1a0f5f1e5e7e98c36a362ec3d1fcfd9932931ed kernel.org
https://git.kernel.org/stable/c/d82467c07b03a27c3c5469b62bb3b726305a80bb kernel.org
https://git.kernel.org/stable/c/e1dc45d97975f9db65694d234fbddf1915176e16 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43304
NVD Published Date:
05/08/2026
NVD Last Modified:
05/08/2026
Source:
kernel.org