ixgbe: Add locking to prevent panic when setting sriov_numvfs to zero

{
  "id": "2b07c52f87d3a10ccd4ba5ad19f0decebe31ab97bbfcaa1c1a78ad8f895f1c9d",
  "url": "https://osv.dev/vulnerability/CVE-2022-49584",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ixgbe: Add locking to prevent panic when setting sriov_numvfs to zero",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ixgbe: Add locking to prevent panic when setting sriov_numvfs to zero It is possible to disable VFs while the PF driver is processing requests from the VF driver. This can result in a panic. BUG: unable to handle kernel paging request at 000000000000106c PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 8 PID: 0 Comm: swapper/8 Kdump: loaded Tainted: G I --------- - Hardware name: Dell Inc. PowerEdge R740/06WXJT, BIOS 2.8.2 08/27/2020 RIP: 0010:ixgbe_msg_task+0x4c8/0x1690 [ixgbe] Code: 00 00 48 8d 04 40 48 c1 e0 05 89 7c 24 24 89 fd 48 89 44 24 10 83 ff 01 0f 84 b8 04 00 00 4c 8b 64 24 10 4d 03 a5 48 22 00 00 <41> 80 7c 24 4c 00 0f 84 8a 03 00 00 0f b7 c7 83 f8 08 0f 84 8f 0a RSP: 0018:ffffb337869f8df8 EFLAGS: 00010002 RAX: 0000000000001020 RBX: 0000000000000000 RCX: 000000000000002b RDX: 0000000000000002 RSI: 0000000000000008 RDI: 0000000000000006 RBP: 0000000000000006 R08: 0000000000000002 R09: 0000000000029780 R10: 00006957d8f42832 R11: 0000000000000000 R12: 0000000000001020 R13: ffff8a00e8978ac0 R14: 000000000000002b R15: ffff8a00e8979c80 FS: 0000000000000000(0000) GS:ffff8a07dfd00000(0000) knlGS:00000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000106c CR3: 0000000063e10004 CR4: 00000000007726e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: ? ttwu_do_wakeup+0x19/0x140 ? tr",
    "evidence": "osv:CVE-2022-49584",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.208",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.134",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.58",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.15",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49584",
      "aliases": [
        "CVE-2022-49584"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d773d1310625be3b040b436178ad59a0af8888f1"
                },
                {
                  "fixed": "031af9e617a6f51075d97e56fc9e712c7dde2508"
                },
                {
                  "fixed": "b82de63f8f817b5735480293dda8e92ba8170c52"
                },
                {
                  "fixed": "16f929a5e76fd047fd8697e1e568bdd7d771955c"
                },
                {
                  "fixed": "9d925d2dc82cec2bcbd8625457645d8a548ab22e"
                },
                {
                  "fixed": "1e53834ce541d4fe271cdcca7703e50be0a44f8a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49584.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "3.6.0"
                },
                {
                  "fixed": "5.4.208"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.134"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.58"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "5.18.15"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49584.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.728654443Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/031af9e617a6f51075d97e56fc9e712c7dde2508",
        "https://git.kernel.org/stable/c/16f929a5e76fd047fd8697e1e568bdd7d771955c",
        "https://git.kernel.org/stable/c/1e53834ce541d4fe271cdcca7703e50be0a44f8a",
        "https://git.kernel.org/stable/c/9d925d2dc82cec2bcbd8625457645d8a548ab22e",
        "https://git.kernel.org/stable/c/b82de63f8f817b5735480293dda8e92ba8170c52",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49584.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49584",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49584.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49584",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 493169,
  "published_at": "2025-02-26T02:23:20.6+00:00"
}