{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T13:55:30.884","vulnerabilities":[{"cve":{"id":"CVE-2024-50041","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-10-21T20:15:17.133","lastModified":"2025-11-03T23:16:44.140","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix macvlan leak by synchronizing access to mac_filter_hash\n\nThis patch addresses a macvlan leak issue in the i40e driver caused by\nconcurrent access to vsi->mac_filter_hash. The leak occurs when multiple\nthreads attempt to modify the mac_filter_hash simultaneously, leading to\ninconsistent state and potential memory leaks.\n\nTo fix this, we now wrap the calls to i40e_del_mac_filter() and zeroing\nvf->default_lan_addr.addr with spin_lock/unlock_bh(&vsi->mac_filter_hash_lock),\nensuring atomic operations and preventing concurrent access.\n\nAdditionally, we add lockdep_assert_held(&vsi->mac_filter_hash_lock) in\ni40e_add_mac_filter() to help catch similar issues in the future.\n\nReproduction steps:\n1. Spawn VFs and configure port vlan on them.\n2. Trigger concurrent macvlan operations (e.g., adding and deleting\n\tportvlan and/or mac filters).\n3. Observe the potential memory leak and inconsistent state in the\n\tmac_filter_hash.\n\nThis synchronization ensures the integrity of the mac_filter_hash and prevents\nthe described leak."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: i40e: Corregir pérdida de macvlan sincronizando el acceso a mac_filter_hash Este parche soluciona un problema de pérdida de macvlan en el controlador i40e causado por el acceso simultáneo a vsi->mac_filter_hash. La pérdida se produce cuando varios subprocesos intentan modificar mac_filter_hash simultáneamente, lo que genera un estado inconsistente y posibles pérdidas de memoria. Para solucionar esto, ahora envolvemos las llamadas a i40e_del_mac_filter() y ponemos a cero vf->default_lan_addr.addr con spin_lock/unlock_bh(&vsi->mac_filter_hash_lock), lo que garantiza operaciones atómicas y evita el acceso simultáneo. Además, agregamos lockdep_assert_held(&vsi->mac_filter_hash_lock) en i40e_add_mac_filter() para ayudar a detectar problemas similares en el futuro. Pasos de reproducción: 1. Genere VFs y configure el puerto VLAN en ellos. 2. Active operaciones MACVLAN simultáneas (por ejemplo, agregar y eliminar filtros MAC o PortVLAN). 3. Observe la posible pérdida de memoria y el estado inconsistente en el hash de filtro MAC. Esta sincronización garantiza la integridad del hash de filtro MAC y evita la pérdida descrita."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-401"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.54","versionEndExcluding":"5.15.168","matchCriteriaId":"D9429645-5F5B-486E-877E-5F2E0EB6202F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18.11","versionEndExcluding":"5.19","matchCriteriaId":"3F904485-FC3F-4533-8CD9-B8208F0C4707"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.113","matchCriteriaId":"7D848431-3C7A-4C40-BC35-515047E89ABE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.57","matchCriteriaId":"05D83DB8-7465-4F88-AFB2-980011992AC1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.11.4","matchCriteriaId":"AA84D336-CE9A-4535-B901-1AD77EC17C34"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*","matchCriteriaId":"7F361E1D-580F-4A2D-A509-7615F73167A1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*","matchCriteriaId":"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/703c4d820b31bcadf465288d5746c53445f02a55","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/8831abff1bd5b6bc8224f0c0671f46fbd702b5b2","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9a9747288ba0a9ad4f5c9877f18dd245770ad64e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/9db6ce9e2738b05a3672aff4d42169cf3bb5a3e3","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/dac6c7b3d33756d6ce09f00a96ea2ecd79fae9fb","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}