Oracle Linux: CVE-2024-53088: ELSA-2025-0065: kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-53088: ELSA-2025-0065:kernel security update (IMPORTANT) (Multiple Advisories)

Severity

4

CVSS

(AV:L/AC:H/Au:S/C:N/I:N/A:C)

Published

11/19/2024

Created

01/14/2025

Added

01/10/2025

Modified

02/13/2025

Description

In the Linux kernel, the following vulnerability has been resolved: i40e: fix race condition by adding filter's intermediate sync state Fix a race condition in the i40e driver that leads to MAC/VLAN filters becoming corrupted and leaking. Address the issue that occurs under heavy load when multiple threads are concurrently modifying MAC/VLAN filters by setting mac and port VLAN. 1. Thread T0 allocates a filter in i40e_add_filter() within i40e_ndo_set_vf_port_vlan(). 2. Thread T1 concurrently frees the filter in __i40e_del_filter() within i40e_ndo_set_vf_mac(). 3. Subsequently, i40e_service_task() calls i40e_sync_vsi_filters(), which refers to the already freed filter memory, causing corruption. Reproduction steps: 1. Spawn multiple VFs. 2. Apply a concurrent heavy load by running parallel operations to change MAC addresses on the VFs and change port VLANs on the host. 3. Observe errors in dmesg: "Error I40E_AQ_RC_ENOSPC adding RX filters on VF XX, please set promiscuous on manually for VF XX". Exact code for stable reproduction Intel can't open-source now. The fix involves implementing a new intermediate filter state, I40E_FILTER_NEW_SYNC, for the time when a filter is on a tmp_add_list. These filters cannot be deleted from the hash list directly but must be removed using the full process.

Solution(s)

• oracle-linux-upgrade-kernel
• oracle-linux-upgrade-kernel-uek

References

• https://attackerkb.com/topics/cve-2024-53088
• CVE - 2024-53088
• ELSA-2025-0065
• ELSA-2025-0578
• ELSA-2025-20095