SB20261022110 - Use-after-free in Linux kernel ipe

Description

This security bulletin contains information about 1 vulnerability.

1) Use-after-free (CVE-ID: CVE-2026-98534)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a local privileged user to potentially cause a denial of service by triggering a kernel use-after-free.

The vulnerability exists due to use-after-free in the Linux kernel's Integrity Policy Enforcement (IPE) policy-loading and auditing code when a newly published policy is deleted concurrently with its load audit. A local privileged user can race policy loading with policy deletion to cause ipe_audit_policy_load() to access freed policy memory, potentially crashing the kernel.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/48f7d0233c3cc8d986d1177d0e5dd4af435e7265
• https://git.kernel.org/stable/c/9814077275eca36ebf8d510d2f076d235ff9f51a
• https://git.kernel.org/stable/c/b72d6c72b4bfbc021e8e127fa13e0f27d09be737
• https://git.kernel.org/stable/c/e9015d32752fa228ef2f0e07fd93fc53a4a4c723