fkie_cve-2022-49227
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-02-26 07:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: igc: avoid kernel warning when changing RX ring parameters Calling ethtool changing the RX ring parameters like this: $ ethtool -G eth0 rx 1024 on igc triggers kernel warnings like this: [ 225.198467] ------------[ cut here ]------------ [ 225.198473] Missing unregister, handled but fix driver [ 225.198485] WARNING: CPU: 7 PID: 959 at net/core/xdp.c:168 xdp_rxq_info_reg+0x79/0xd0 [...] [ 225.198601] Call Trace: [ 225.198604] <TASK> [ 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() copies the igc_ring structure but neglects to reset the xdp_rxq_info member before calling igc_setup_rx_resources(). This in turn calls xdp_rxq_info_reg() with an already registered xdp_rxq_info. Make sure to unregister the xdp_rxq_info structure first in igc_setup_rx_resources.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ddb49af08094ebee250b461172ee7b8e27a35d3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/453307b569a0d41bddd07f26bf41b784cd82a4c9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/65aebcf1e05bd97d2e7ffcdff36efea1757c9450
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab8c107470d12e7ef99030bf0911a10cdef62d16
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "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]  \u003cTASK\u003e\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."
    }
  ],
  "id": "CVE-2022-49227",
  "lastModified": "2025-02-26T07:00:59.747",
  "metrics": {},
  "published": "2025-02-26T07:00:59.747",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ddb49af08094ebee250b461172ee7b8e27a35d3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/453307b569a0d41bddd07f26bf41b784cd82a4c9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/65aebcf1e05bd97d2e7ffcdff36efea1757c9450"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ab8c107470d12e7ef99030bf0911a10cdef62d16"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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