{"cve":"CVE-2022-49227","nvd":{"published":"2025-02-26T07:00:59.747","modified":"2026-06-17T05:17:26.690","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/3ddb49af08094ebee250b461172ee7b8e27a35d3","https://git.kernel.org/stable/c/453307b569a0d41bddd07f26bf41b784cd82a4c9","https://git.kernel.org/stable/c/65aebcf1e05bd97d2e7ffcdff36efea1757c9450","https://git.kernel.org/stable/c/ab8c107470d12e7ef99030bf0911a10cdef62d16"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49227","score":0.00271,"percentile":0.19338,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}