cve-2024-26858
Vulnerability from cvelistv5
Published
2024-04-17 10:17
Modified
2024-08-02 00:14
Severity
Summary
net/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website


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              "content": {
                "id": "CVE-2024-26858",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:41:34.337200Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:14:13.697Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/en_tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "vendor": "Linux",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map\n\nJust simply reordering the functions mlx5e_ptp_metadata_map_put and\nmlx5e_ptpsq_track_metadata in the mlx5e_txwqe_complete context is not good\nenough since both the compiler and CPU are free to reorder these two\nfunctions. If reordering does occur, the issue that was supposedly fixed by\n7e3f3ba97e6c (\"net/mlx5e: Track xmit submission to PTP WQ after populating\nmetadata map\") will be seen. This will lead to NULL pointer dereferences in\nmlx5e_ptpsq_mark_ts_cqes_undelivered in the NAPI polling context due to the\ntracking list being populated before the metadata map."
        }
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        "dateUpdated": "2024-05-29T05:23:59.972Z",
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          "url": "https://git.kernel.org/stable/c/b7cf07586c40f926063d4d09f7de28ff82f62b2a"
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      "title": "net/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map",
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26858",
    "datePublished": "2024-04-17T10:17:19.757Z",
    "dateReserved": "2024-02-19T14:20:24.183Z",
    "dateUpdated": "2024-08-02T00:14:13.697Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26858\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T11:15:08.840\",\"lastModified\":\"2024-04-17T12:48:07.510\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map\\n\\nJust simply reordering the functions mlx5e_ptp_metadata_map_put and\\nmlx5e_ptpsq_track_metadata in the mlx5e_txwqe_complete context is not good\\nenough since both the compiler and CPU are free to reorder these two\\nfunctions. If reordering does occur, the issue that was supposedly fixed by\\n7e3f3ba97e6c (\\\"net/mlx5e: Track xmit submission to PTP WQ after populating\\nmetadata map\\\") will be seen. This will lead to NULL pointer dereferences in\\nmlx5e_ptpsq_mark_ts_cqes_undelivered in the NAPI polling context due to the\\ntracking list being populated before the metadata map.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: use una barrera de memoria para aplicar PTP WQ. El seguimiento de env\u00edo xmit ocurre despu\u00e9s de completar metadata_map. Simplemente reordenar las funciones mlx5e_ptp_metadata_map_put y mlx5e_ptpsq_track_metadata en el contexto mlx5e_txwqe_complete no es lo suficientemente bueno ya que ambas el compilador y la CPU son libres de reordenar estas dos funciones. Si se produce un reordenamiento, se ver\u00e1 el problema que supuestamente fue solucionado por 7e3f3ba97e6c (\\\"net/mlx5e: Seguimiento del env\u00edo de xmit a PTP WQ despu\u00e9s de completar el mapa de metadatos\\\"). Esto dar\u00e1 lugar a desreferencias de puntero NULL en mlx5e_ptpsq_mark_ts_cqes_undelivered en el contexto de sondeo NAPI debido a que la lista de seguimiento se completa antes del mapa de metadatos.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/936ef086161ab89a7f38f7a0761d6a3063c3277e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b7cf07586c40f926063d4d09f7de28ff82f62b2a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d1f71615dbb305f14f3b756cce015d70d8667549\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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