FKIE_CVE-2025-68220

Vulnerability from fkie_nvd - Published: 2025-12-16 14:15 - Updated: 2026-10-14 13:10
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: netcp: Standardize knav_dma_open_channel to return NULL on error Make knav_dma_open_channel consistently return NULL on error instead of ERR_PTR. Currently the header include/linux/soc/ti/knav_dma.h returns NULL when the driver is disabled, but the driver implementation does not even return NULL or ERR_PTR on failure, causing inconsistency in the users. This results in a crash in netcp_free_navigator_resources as followed (trimmed): Unhandled fault: alignment exception (0x221) at 0xfffffff2 [fffffff2] *pgd=80000800207003, *pmd=82ffda003, *pte=00000000 Internal error: : 221 [#1] SMP ARM Modules linked in: CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-rc7 #1 NONE Hardware name: Keystone PC is at knav_dma_close_channel+0x30/0x19c LR is at netcp_free_navigator_resources+0x2c/0x28c [... TRIM...] Call trace: knav_dma_close_channel from netcp_free_navigator_resources+0x2c/0x28c netcp_free_navigator_resources from netcp_ndo_open+0x430/0x46c netcp_ndo_open from __dev_open+0x114/0x29c __dev_open from __dev_change_flags+0x190/0x208 __dev_change_flags from netif_change_flags+0x1c/0x58 netif_change_flags from dev_change_flags+0x38/0xa0 dev_change_flags from ip_auto_config+0x2c4/0x11f0 ip_auto_config from do_one_initcall+0x58/0x200 do_one_initcall from kernel_init_freeable+0x1cc/0x238 kernel_init_freeable from kernel_init+0x1c/0x12c kernel_init from ret_from_fork+0x14/0x38 [... TRIM...] Standardize the error handling by making the function return NULL on all error conditions. The API is used in just the netcp_core.c so the impact is limited. Note, this change, in effect reverts commit 5b6cb43b4d62 ("net: ethernet: ti: netcp_core: return error while dma channel open issue"), but provides a less error prone implementation.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2572c358ee434ce4b994472cceeb4043cbff5bc5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3afeb909c3e2e0eb19b1e20506196e5f2d9c2259
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8427218ecbd7f8559c37972e66cb0fa06e82353b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/90a88306eb874fe4bbdd860e6c9787f5bbc588b5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/952637c5b9be64539cd0e13ef88db71a1df46373
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/af6b10a13fc0aee37df4a8292414cc055c263fa3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f9608637ecc165d7d6341df105aee44691461fb9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fbb53727ca789a8d27052aab4b77ca9e2a0fae2b
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/netcp_core.c",
            "drivers/soc/ti/knav_dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "af6b10a13fc0aee37df4a8292414cc055c263fa3",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "8427218ecbd7f8559c37972e66cb0fa06e82353b",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "3afeb909c3e2e0eb19b1e20506196e5f2d9c2259",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "2572c358ee434ce4b994472cceeb4043cbff5bc5",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "952637c5b9be64539cd0e13ef88db71a1df46373",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "fbb53727ca789a8d27052aab4b77ca9e2a0fae2b",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "f9608637ecc165d7d6341df105aee44691461fb9",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            },
            {
              "lessThan": "90a88306eb874fe4bbdd860e6c9787f5bbc588b5",
              "status": "affected",
              "version": "88139ed030583557751e279968e13e892ae10825",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/netcp_core.c",
            "drivers/soc/ti/knav_dma.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.18"
            },
            {
              "lessThan": "3.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.302",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.247",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.197",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.159",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.118",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.60",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: ti: netcp: Standardize knav_dma_open_channel to return NULL on error\n\nMake knav_dma_open_channel consistently return NULL on error instead\nof ERR_PTR. Currently the header include/linux/soc/ti/knav_dma.h\nreturns NULL when the driver is disabled, but the driver\nimplementation does not even return NULL or ERR_PTR on failure,\ncausing inconsistency in the users. This results in a crash in\nnetcp_free_navigator_resources as followed (trimmed):\n\nUnhandled fault: alignment exception (0x221) at 0xfffffff2\n[fffffff2] *pgd=80000800207003, *pmd=82ffda003, *pte=00000000\nInternal error: : 221 [#1] SMP ARM\nModules linked in:\nCPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-rc7 #1 NONE\nHardware name: Keystone\nPC is at knav_dma_close_channel+0x30/0x19c\nLR is at netcp_free_navigator_resources+0x2c/0x28c\n\n[... TRIM...]\n\nCall trace:\n knav_dma_close_channel from netcp_free_navigator_resources+0x2c/0x28c\n netcp_free_navigator_resources from netcp_ndo_open+0x430/0x46c\n netcp_ndo_open from __dev_open+0x114/0x29c\n __dev_open from __dev_change_flags+0x190/0x208\n __dev_change_flags from netif_change_flags+0x1c/0x58\n netif_change_flags from dev_change_flags+0x38/0xa0\n dev_change_flags from ip_auto_config+0x2c4/0x11f0\n ip_auto_config from do_one_initcall+0x58/0x200\n do_one_initcall from kernel_init_freeable+0x1cc/0x238\n kernel_init_freeable from kernel_init+0x1c/0x12c\n kernel_init from ret_from_fork+0x14/0x38\n[... TRIM...]\n\nStandardize the error handling by making the function return NULL on\nall error conditions. The API is used in just the netcp_core.c so the\nimpact is limited.\n\nNote, this change, in effect reverts commit 5b6cb43b4d62 (\"net:\nethernet: ti: netcp_core: return error while dma channel open issue\"),\nbut provides a less error prone implementation."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: ethernet: ti: netcp: Estandarizar knav_dma_open_channel para que devuelva NULL en caso de error\n\nHacer que knav_dma_open_channel devuelva NULL de forma consistente en caso de error en lugar de ERR_PTR. Actualmente, el encabezado include/linux/soc/ti/knav_dma.h devuelve NULL cuando el controlador est\u00e1 deshabilitado, pero la implementaci\u00f3n del controlador ni siquiera devuelve NULL o ERR_PTR en caso de fallo, causando inconsistencia en los usuarios. Esto resulta en un fallo en netcp_free_navigator_resources como se muestra a continuaci\u00f3n (recortado):\n\nUnhandled fault: alignment exception (0x221) at 0xfffffff2\n[fffffff2] pgd=80000800207003, pmd=82ffda003, pte=00000000\nInternal error: : 221 [#1] SMP ARM\nModules linked in:\nCPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-rc7 #1 NONE\nHardware name: Keystone\nPC is at knav_dma_close_channel+0x30/0x19c\nLR is at netcp_free_navigator_resources+0x2c/0x28c\n\n[... RECORTADO...]\n\nTraza de llamada:\n knav_dma_close_channel desde netcp_free_navigator_resources+0x2c/0x28c\n netcp_free_navigator_resources desde netcp_ndo_open+0x430/0x46c\n netcp_ndo_open desde __dev_open+0x114/0x29c\n __dev_open desde __dev_change_flags+0x190/0x208\n __dev_change_flags desde netif_change_flags+0x1c/0x58\n netif_change_flags desde dev_change_flags+0x38/0xa0\n dev_change_flags desde ip_auto_config+0x2c4/0x11f0\n ip_auto_config desde do_one_initcall+0x58/0x200\n do_one_initcall desde kernel_init_freeable+0x1cc/0x238\n kernel_init_freeable desde kernel_init+0x1c/0x12c\n kernel_init desde ret_from_fork+0x14/0x38\n[... RECORTADO...]\n\nEstandarizar el manejo de errores haciendo que la funci\u00f3n devuelva NULL en todas las condiciones de error. La API se utiliza solo en netcp_core.c, por lo que el impacto es limitado.\n\nTenga en cuenta que este cambio, en efecto, revierte el commit 5b6cb43b4d62 (\u0027net: ethernet: ti: netcp_core: return error while dma channel open issue\u0027), pero proporciona una implementaci\u00f3n menos propensa a errores."
    }
  ],
  "id": "CVE-2025-68220",
  "lastModified": "2026-10-14T13:10:00.187",
  "metrics": {},
  "published": "2025-12-16T14:15:55.143",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2572c358ee434ce4b994472cceeb4043cbff5bc5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3afeb909c3e2e0eb19b1e20506196e5f2d9c2259"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8427218ecbd7f8559c37972e66cb0fa06e82353b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/90a88306eb874fe4bbdd860e6c9787f5bbc588b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/952637c5b9be64539cd0e13ef88db71a1df46373"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/af6b10a13fc0aee37df4a8292414cc055c263fa3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f9608637ecc165d7d6341df105aee44691461fb9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fbb53727ca789a8d27052aab4b77ca9e2a0fae2b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}



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