sfc: fix considering that all channels have TX queues

{
  "id": "b1443ee60259ef2d0653e1be2216dabb426bc7385107830751a506dcd4eba12e",
  "url": "https://osv.dev/vulnerability/CVE-2022-49378",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "sfc: fix considering that all channels have TX queues",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: sfc: fix considering that all channels have TX queues Normally, all channels have RX and TX queues, but this is not true if modparam efx_separate_tx_channels=1 is used. In that cases, some channels only have RX queues and others only TX queues (or more preciselly, they have them allocated, but not initialized). Fix efx_channel_has_tx_queues to return the correct value for this case too. Messages shown at probe time before the fix: sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0 ------------[ cut here ]------------ netdevice: ens6f0np0: failed to initialise TXQ -1 WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc] [...] stripped RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc] [...] stripped Call Trace: efx_init_tx_queue+0xaa/0xf0 [sfc] efx_start_channels+0x49/0x120 [sfc] efx_start_all+0x1f8/0x430 [sfc] efx_net_open+0x5a/0xe0 [sfc] __dev_open+0xd0/0x190 __dev_change_flags+0x1b3/0x220 dev_change_flags+0x21/0x60 [...] stripped Messages shown at remove time before the fix: sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues sfc 0000:03:00.0 ens6f0np0: failed to flush queues",
    "evidence": "osv:CVE-2022-49378",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.122",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.47",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.15",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.18.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49378",
      "aliases": [
        "CVE-2022-49378"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "8700aff089843399f95bc7701ae87b642b35a716"
                },
                {
                  "fixed": "8f81a4113e1e574d2cbde4f2cd599380a9189c0f"
                },
                {
                  "fixed": "5567d69b95b9c07e1c56f15cf0301251d12e5f97"
                },
                {
                  "fixed": "e7e8d5e25dc762b70f9c88ec6b7d451d0816eead"
                },
                {
                  "fixed": "913d45f02d346ce41c4aad057eaf53a8ed449dc3"
                },
                {
                  "fixed": "2e102b53f8a778f872dc137f4c7ac548705817aa"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49378.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.122"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
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            {
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              "events": [
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                  "introduced": "5.16.0"
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                {
                  "fixed": "5.17.15"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "5.18.4"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49378.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.777275406Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/2e102b53f8a778f872dc137f4c7ac548705817aa",
        "https://git.kernel.org/stable/c/5567d69b95b9c07e1c56f15cf0301251d12e5f97",
        "https://git.kernel.org/stable/c/8f81a4113e1e574d2cbde4f2cd599380a9189c0f",
        "https://git.kernel.org/stable/c/913d45f02d346ce41c4aad057eaf53a8ed449dc3",
        "https://git.kernel.org/stable/c/e7e8d5e25dc762b70f9c88ec6b7d451d0816eead",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49378.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49378",
        "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-2022-49378.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49378",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 516821,
  "published_at": "2025-02-26T02:11:17.084+00:00"
}