GHSA-8PR8-738W-J3VF
Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32In 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.
{
"affected": [],
"aliases": [
"CVE-2026-93052"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:58Z",
"severity": null
},
"details": "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.",
"id": "GHSA-8pr8-738w-j3vf",
"modified": "2026-09-17T18:32:08Z",
"published": "2026-09-17T18:32:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93052"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1df3926ed8771edf286ff753428b243f334e6041"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4984277bc43f84d7506346a09b29af138246d54a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/61b101c6a150057b6d512421ed108aed16e822ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/679cfada6868723ccf162ec3b78c7402ff2405bf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a45d6dd3c11e921882a2e74c7c8710b975f2eaa7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bab66a9e30e39a06f3463b19f8c704386dfd5268"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7a8f4cbc8cede0be55220367dc52b126e2d39e5"
}
],
"schema_version": "1.4.0",
"severity": []
}
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