CVE-2022-49378 (GCVE-0-2022-49378)
Vulnerability from cvelistv5
Published
2025-02-26 02:11
Modified
2025-05-04 08:36
Severity ?
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
Impacted products
Vendor Product Version
Linux Linux Version: 8700aff089843399f95bc7701ae87b642b35a716
Version: 8700aff089843399f95bc7701ae87b642b35a716
Version: 8700aff089843399f95bc7701ae87b642b35a716
Version: 8700aff089843399f95bc7701ae87b642b35a716
Version: 8700aff089843399f95bc7701ae87b642b35a716
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   Linux Linux Version: 5.5
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/sfc/net_driver.h"
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              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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      "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"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:36:24.847Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8f81a4113e1e574d2cbde4f2cd599380a9189c0f"
        },
        {
          "url": "https://git.kernel.org/stable/c/5567d69b95b9c07e1c56f15cf0301251d12e5f97"
        },
        {
          "url": "https://git.kernel.org/stable/c/e7e8d5e25dc762b70f9c88ec6b7d451d0816eead"
        },
        {
          "url": "https://git.kernel.org/stable/c/913d45f02d346ce41c4aad057eaf53a8ed449dc3"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e102b53f8a778f872dc137f4c7ac548705817aa"
        }
      ],
      "title": "sfc: fix considering that all channels have TX queues",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49378",
    "datePublished": "2025-02-26T02:11:17.084Z",
    "dateReserved": "2025-02-26T02:08:31.558Z",
    "dateUpdated": "2025-05-04T08:36:24.847Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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