fkie_cve-2023-32246
Vulnerability from fkie_nvd
Published
2025-08-16 14:15
Modified
2025-08-16 14:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: call rcu_barrier() in ksmbd_server_exit() racy issue is triggered the bug by racing between closing a connection and rmmod. In ksmbd, rcu_barrier() is not called at module unload time, so nothing prevents ksmbd from getting unloaded while it still has RCU callbacks pending. It leads to trigger unintended execution of kernel code locally and use to defeat protections such as Kernel Lockdown
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bd
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c053e389db0d892e2ff5a60ec5e533b976503795
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d4174505016a3b2996eb7ff1530dcabbf15d47b6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eb307d09fe15844fdaebeb8cc8c9b9e925430aa5
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: call rcu_barrier() in ksmbd_server_exit()\n\nracy issue is triggered the bug by racing between closing a connection\nand rmmod. In ksmbd, rcu_barrier() is not called at module unload time,\nso nothing prevents ksmbd from getting unloaded while it still has RCU\ncallbacks pending. It leads to trigger unintended execution of kernel\ncode locally and use to defeat protections such as Kernel Lockdown"
    }
  ],
  "id": "CVE-2023-32246",
  "lastModified": "2025-08-16T14:15:26.393",
  "metrics": {},
  "published": "2025-08-16T14:15:26.393",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c053e389db0d892e2ff5a60ec5e533b976503795"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d4174505016a3b2996eb7ff1530dcabbf15d47b6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/eb307d09fe15844fdaebeb8cc8c9b9e925430aa5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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