bnxt_en: Fix possible crash in bnxt_hwrm_set_coal()

{
  "id": "bc123840ce5d99def572ca209d7b7fd0a9d03bd847ff4e95f30ec52bf0cf30fb",
  "url": "https://osv.dev/vulnerability/CVE-2022-49869",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "bnxt_en: Fix possible crash in bnxt_hwrm_set_coal()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix possible crash in bnxt_hwrm_set_coal() During the error recovery sequence, the rtnl_lock is not held for the entire duration and some datastructures may be freed during the sequence. Check for the BNXT_STATE_OPEN flag instead of netif_running() to ensure that the device is fully operational before proceeding to reconfigure the coalescing settings. This will fix a possible crash like this: BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 0 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 10 PID: 181276 Comm: ethtool Kdump: loaded Tainted: G IOE --------- - - 4.18.0-348.el8.x86_64 #1 Hardware name: Dell Inc. PowerEdge R740/0F9N89, BIOS 2.3.10 08/15/2019 RIP: 0010:bnxt_hwrm_set_coal+0x1fb/0x2a0 [bnxt_en] Code: c2 66 83 4e 22 08 66 89 46 1c e8 10 cb 00 00 41 83 c6 01 44 39 b3 68 01 00 00 0f 8e a3 00 00 00 48 8b 93 c8 00 00 00 49 63 c6 <48> 8b 2c c2 48 8b 85 b8 02 00 00 48 85 c0 74 2e 48 8b 74 24 08 f6 RSP: 0018:ffffb11c8dcaba50 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8d168a8b0ac0 RCX: 00000000000000c5 RDX: 0000000000000000 RSI: ffff8d162f72c000 RDI: ffff8d168a8b0b28 RBP: 0000000000000000 R08: b6e1f68a12e9a7eb R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000037 R12: ffff8d168a8b109c R13: ffff8d168a8b10aa R14: 0000000000000000 R15: ffffffffc01ac4e0 FS: 00007f3852e4c740(0000) GS:ffff8d24c0080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008",
    "evidence": "osv:CVE-2022-49869",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.225",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.155",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.79",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.0.9",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2022-49869",
      "aliases": [
        "CVE-2022-49869"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2151fe0830fdb951f8ecfcfe67306fdef2366aa0"
                },
                {
                  "fixed": "a5a05fbef4a0dfe45fe03b2f1d02ba23aebf5384"
                },
                {
                  "fixed": "38147073c96dce8c7e142ce0e5f305a420a729ba"
                },
                {
                  "fixed": "ac257c43fa615d22180916074feed803b8bb8cb0"
                },
                {
                  "fixed": "7781e32984cde65549bedc3201537e253297c98d"
                },
                {
                  "fixed": "6d81ea3765dfa6c8a20822613c81edad1c4a16a0"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49869.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.4.0"
                },
                {
                  "fixed": "5.4.225"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.155"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.79"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.0.9"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49869.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.636857835Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/38147073c96dce8c7e142ce0e5f305a420a729ba",
        "https://git.kernel.org/stable/c/6d81ea3765dfa6c8a20822613c81edad1c4a16a0",
        "https://git.kernel.org/stable/c/7781e32984cde65549bedc3201537e253297c98d",
        "https://git.kernel.org/stable/c/a5a05fbef4a0dfe45fe03b2f1d02ba23aebf5384",
        "https://git.kernel.org/stable/c/ac257c43fa615d22180916074feed803b8bb8cb0",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49869.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49869",
        "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-2022-49869.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49869",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 489896,
  "published_at": "2025-05-01T14:10:20.501+00:00"
}