CVE-2026-80924 Linux Kernel - Information Disclosure

Linux kernel contains a sensitive data exposure vulnerability caused by using kfree() instead of kfree_sensitive() for derived key buffers in crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum(), letting attackers potentially recover key material from freed memory, exploit requires access to freed slab objects.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
9 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version with the fix applied.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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