CVE-2026-93052 (GCVE-0-2026-93052)
Vulnerability from cvelistv5
Published
2026-09-17 16:10
Modified
2026-10-19 09:04
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: misc: bcm-vk: Use acquire/release for msgq_inited bcm_vk_sync_msgq() fills the message queue information and then sets msgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the message queues and their cached queue information. atomic_set()/atomic_read() do not order those accesses. A reader can see msgq_inited set while still seeing stale queue information. Use release when publishing the initialized queues and acquire when checking the gate. Keep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the gate and does not publish queue state to readers.
References
Impacted products
Vendor Product Version
Linux Linux Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
Version: 111d746bb4767ad476f80fe49067e3df3d9a9375
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{
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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\nmisc: bcm-vk: Use acquire/release for msgq_inited\n\nbcm_vk_sync_msgq() fills the message queue information and then sets\nmsgq_inited. Readers call bcm_vk_drv_access_ok() before accessing the\nmessage queues and their cached queue information.\n\natomic_set()/atomic_read() do not order those accesses. A reader can see\nmsgq_inited set while still seeing stale queue information. Use release\nwhen publishing the initialized queues and acquire when checking the gate.\n\nKeep the clear in bcm_vk_blk_drv_access() as atomic_set(). It closes the\ngate and does not publish queue state to readers."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:04:47.240Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"
        },
        {
          "url": "https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"
        },
        {
          "url": "https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"
        },
        {
          "url": "https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"
        },
        {
          "url": "https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"
        }
      ],
      "title": "misc: bcm-vk: Use acquire/release for msgq_inited",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-93052",
    "datePublished": "2026-09-17T16:10:41.716Z",
    "dateReserved": "2026-09-17T15:57:05.658Z",
    "dateUpdated": "2026-10-19T09:04:47.240Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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