Cloudanix VulnDB

CVE-2026-46283

None

CVSS

—

EPSS

0.2%

Published

Jun 8, 2026

CISA due date

—

The record

In the Linux kernel, the following vulnerability has been resolved: tpm: Use kfree_sensitive() to free auth session in tpm_dev_release() tpm_dev_release() uses plain kfree() to free chip->auth, which contains sensitive cryptographic material including HMAC session keys, nonces, and passphrase data (struct tpm2_auth). Every other code path that frees this structure uses kfree_sensitive() to zero the memory before releasing it: both tpm2_end_auth_session() and tpm_buf_check_hmac_response() do so. The tpm_dev_release() path is the only one that does not, leaving key material in freed slab memory until it is eventually overwritten. Use kfree_sensitive() for consistency with the rest of the driver and to ensure session keys are scrubbed during device teardown.

Affected packages

Ecosystem Package Introduced Fixed
openSUSE:Tumbleweed kernel-source 0 7.0.12-1.1

Related vulnerabilities