Answer in brief
CVE-2024-50041 records a High severity (CVSS 8.8) vulnerability in i40e: Fix macvlan leak by synchronizing access to mac_filter_hash. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ddec6cbbe22781d17965f1e6386e5a6363c058d2 <9db6ce9e2738b05a3672aff4d42169cf3bb5a3e3 || >=fed0d9f13266a22ce1fc9a97521ef9cdc6271a23 <9a9747288ba0a9ad4f5c9877f18dd245770ad64e || >=fed0d9f13266a22ce1fc9a97521ef9cdc6271a23 <703c4d820b31bcadf465288d5746c53445f02a55 || >=fed0d9f13266a22ce1fc9a97521ef9cdc6271a23 <8831abff1bd5b6bc8224f0c0671f46fbd702b5b2 || >=fed0d9f13266a22ce1fc9a97521ef9cdc6271a23 <dac6c7b3d33756d6ce09f00a96ea2ecd79fae9fb || 8bfcbaa379694e05290fcff21f4bd40afcf88776 || >=5.15.54 <5.15.168 || >=5.18.11 <5.19 | 9db6ce9e2738b05a3672aff4d42169cf3bb5a3e3, 9a9747288ba0a9ad4f5c9877f18dd245770ad64e, 703c4d820b31bcadf465288d5746c53445f02a55, 8831abff1bd5b6bc8224f0c0671f46fbd702b5b2, dac6c7b3d33756d6ce09f00a96ea2ecd79fae9fb, 5.15.168, 5.19 |
| Linux/Linuxgeneric | 5.19 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix macvlan leak by synchronizing access to mac_filter_hash This patch addresses a macvlan leak issue in the i40e driver caused by concurrent access to vsi->mac_filter_hash. The leak occurs when multiple threads attempt to modify the mac_filter_hash simultaneously, leading to inconsistent state and potential memory leaks. To fix this, we now wrap the calls to i40e_del_mac_filter() and zeroing vf->default_lan_addr.addr with spin_lock/unlock_bh(&vsi->mac_filter_hash_lock), ensuring atomic operations and preventing concurrent access. Additionally, we add lockdep_assert_held(&vsi->mac_filter_hash_lock) in i40e_add_mac_filter() to help catch similar issues in the future. Reproduction steps: 1. Spawn VFs and configure port vlan on them. 2. Trigger concurrent macvlan operations (e.g., adding and deleting portvlan and/or mac filters). 3. Observe the potential memory leak and inconsistent state in the mac_filter_hash. This synchronization ensures the integrity of the mac_filter_hash and prevents the described leak.
Quoted source text, attributed separately from HOL analysis.