CVE-2022-49227

{"id": "CVE-2022-49227", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-02-26T07:00:59.747", "references": [{"url": "https://git.kernel.org/stable/c/3ddb49af08094ebee250b461172ee7b8e27a35d3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/453307b569a0d41bddd07f26bf41b784cd82a4c9", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/65aebcf1e05bd97d2e7ffcdff36efea1757c9450", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab8c107470d12e7ef99030bf0911a10cdef62d16", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nigc: avoid kernel warning when changing RX ring parameters\n\nCalling ethtool changing the RX ring parameters like this:\n\n $ ethtool -G eth0 rx 1024\n\non igc triggers kernel warnings like this:\n\n[ 225.198467] ------------[ cut here ]------------\n[ 225.198473] Missing unregister, handled but fix driver\n[ 225.198485] WARNING: CPU: 7 PID: 959 at net/core/xdp.c:168\nxdp_rxq_info_reg+0x79/0xd0\n[...]\n[ 225.198601] Call Trace:\n[ 225.198604] <TASK>\n[ 225.198609] igc_setup_rx_resources+0x3f/0xe0 [igc]\n[ 225.198617] igc_ethtool_set_ringparam+0x30e/0x450 [igc]\n[ 225.198626] ethnl_set_rings+0x18a/0x250\n[ 225.198631] genl_family_rcv_msg_doit+0xca/0x110\n[ 225.198637] genl_rcv_msg+0xce/0x1c0\n[ 225.198640] ? rings_prepare_data+0x60/0x60\n[ 225.198644] ? genl_get_cmd+0xd0/0xd0\n[ 225.198647] netlink_rcv_skb+0x4e/0xf0\n[ 225.198652] genl_rcv+0x24/0x40\n[ 225.198655] netlink_unicast+0x20e/0x330\n[ 225.198659] netlink_sendmsg+0x23f/0x480\n[ 225.198663] sock_sendmsg+0x5b/0x60\n[ 225.198667] __sys_sendto+0xf0/0x160\n[ 225.198671] ? handle_mm_fault+0xb2/0x280\n[ 225.198676] ? do_user_addr_fault+0x1eb/0x690\n[ 225.198680] __x64_sys_sendto+0x20/0x30\n[ 225.198683] do_syscall_64+0x38/0x90\n[ 225.198687] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 225.198693] RIP: 0033:0x7f7ae38ac3aa\n\nigc_ethtool_set_ringparam() copies the igc_ring structure but neglects to\nreset the xdp_rxq_info member before calling igc_setup_rx_resources().\nThis in turn calls xdp_rxq_info_reg() with an already registered xdp_rxq_info.\n\nMake sure to unregister the xdp_rxq_info structure first in\nigc_setup_rx_resources."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: igc: evitar advertencia del kernel al cambiar los par\u00e1metros del anillo RX Llamar a ethtool cambiando los par\u00e1metros del anillo RX de esta manera: $ ethtool -G eth0 rx 1024 en igc activa advertencias del kernel como esta: [ 225.198467] ------------[ cortar aqu\u00ed ]------------ [ 225.198473] Falta anulaci\u00f3n del registro, controlador manejado pero corregido [ 225.198485] ADVERTENCIA: CPU: 7 PID: 959 en net/core/xdp.c:168 xdp_rxq_info_reg+0x79/0xd0 [...] [ 225.198601] Seguimiento de llamada: [ 225.198604] [ 225.198609] igc_setup_rx_resources+0x3f/0xe0 [igc] [ 225.198617] igc_ethtool_set_ringparam+0x30e/0x450 [igc] [ 225.198626] ethnl_set_rings+0x18a/0x250 [ 225.198631] genl_family_rcv_msg_doit+0xca/0x110 [ 225.198637] genl_rcv_msg+0xce/0x1c0 [ 225.198640] ? rings_prepare_data+0x60/0x60 [ 225.198644] ? genl_get_cmd+0xd0/0xd0 [ 225.198647] netlink_rcv_skb+0x4e/0xf0 [ 225.198652] genl_rcv+0x24/0x40 [ 225.198655] netlink_unicast+0x20e/0x330 [ 225.198659] netlink_sendmsg+0x23f/0x480 [ 225.198663] sock_sendmsg+0x5b/0x60 [ 225.198667] __sys_sendto+0xf0/0x160 [ 225.198671] ? handle_mm_fault+0xb2/0x280 [ 225.198676] ? do_user_addr_fault+0x1eb/0x690 [ 225.198680] __x64_sys_sendto+0x20/0x30 [ 225.198683] do_syscall_64+0x38/0x90 [ 225.198687] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 225.198693] RIP: 0033:0x7f7ae38ac3aa igc_ethtool_set_ringparam() copia la estructura igc_ring pero no restablece el miembro xdp_rxq_info antes de llamar a igc_setup_rx_resources(). Esto, a su vez, llama a xdp_rxq_info_reg() con un xdp_rxq_info ya registrado. Aseg\u00farese de anular el registro de la estructura xdp_rxq_info primero en igc_setup_rx_resources."}], "lastModified": "2025-10-21T11:52:30.137", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3635E21D-6C8E-41E4-BF98-89A503BAF23D", "versionEndExcluding": "5.15.33", "versionStartIncluding": "5.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B", "versionEndExcluding": "5.16.19", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.17"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}