fkie_cve-2022-49378
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-10-21 12:16
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e102b53f8a778f872dc137f4c7ac548705817aaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5567d69b95b9c07e1c56f15cf0301251d12e5f97Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f81a4113e1e574d2cbde4f2cd599380a9189c0fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/913d45f02d346ce41c4aad057eaf53a8ed449dc3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7e8d5e25dc762b70f9c88ec6b7d451d0816eeadPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.5
linux linux_kernel 5.5
linux linux_kernel 5.5
linux linux_kernel 5.5
linux linux_kernel 5.5
linux linux_kernel 5.5


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix considering that all channels have TX queues\n\nNormally, all channels have RX and TX queues, but this is not true if\nmodparam efx_separate_tx_channels=1 is used. In that cases, some\nchannels only have RX queues and others only TX queues (or more\npreciselly, they have them allocated, but not initialized).\n\nFix efx_channel_has_tx_queues to return the correct value for this case\ntoo.\n\nMessages shown at probe time before the fix:\n sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0\n ------------[ cut here ]------------\n netdevice: ens6f0np0: failed to initialise TXQ -1\n WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n Call Trace:\n  efx_init_tx_queue+0xaa/0xf0 [sfc]\n  efx_start_channels+0x49/0x120 [sfc]\n  efx_start_all+0x1f8/0x430 [sfc]\n  efx_net_open+0x5a/0xe0 [sfc]\n  __dev_open+0xd0/0x190\n  __dev_change_flags+0x1b3/0x220\n  dev_change_flags+0x21/0x60\n [...] stripped\n\nMessages shown at remove time before the fix:\n sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues\n sfc 0000:03:00.0 ens6f0np0: failed to flush queues"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sfc: correcci\u00f3n considerando que todos los canales tienen colas TX Normalmente, todos los canales tienen colas RX y TX, pero esto no es cierto si se usa el modparam efx_separate_tx_channels=1. En esos casos, algunos canales solo tienen colas RX y otros solo colas TX (o m\u00e1s precisamente, las tienen asignadas, pero no inicializadas). Arregla efx_channel_has_tx_queues para que devuelva el valor correcto para este caso tambi\u00e9n. Mensajes mostrados en el momento de la prueba antes de la correcci\u00f3n: sfc 0000:03:00.0 ens6f0np0: Fall\u00f3 el comando MC 0x82 inlen 544 rc=-22 (raw=0) arg=0 ------------[ cortar aqu\u00ed ]------------  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 "
    }
  ],
  "id": "CVE-2022-49378",
  "lastModified": "2025-10-21T12:16:01.680",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-02-26T07:01:14.450",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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