Bug 2327328 (CVE-2024-53088)
| Summary: | CVE-2024-53088 kernel: i40e: fix race condition by adding filter's intermediate sync state | ||
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| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | dfreiber, drow, jburrell, rhel-process-autobot, vkumar, watson-tool-maintainers |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A flaw was found in the Linux kernel's i40e network driver. A local user can exploit this race condition to cause a Denial of Service (DoS) through memory corruption. The issue occurs when multiple concurrent operations modify Media Access Control (MAC) and Virtual Local Area Network (VLAN) filters under heavy load, leading the driver to reference memory that has already been freed.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
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| Bug Depends On: | 2327493 | ||
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Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024111906-CVE-2024-53088-795c@gregkh/T This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:0066 https://access.redhat.com/errata/RHSA-2025:0066 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:0065 https://access.redhat.com/errata/RHSA-2025:0065 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:0057 https://access.redhat.com/errata/RHSA-2025:0057 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:0578 https://access.redhat.com/errata/RHSA-2025:0578 |
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.