ghsa-75h4-6q93-6c34
Vulnerability from github
Published
2025-08-16 15:30
Modified
2025-08-16 15:30
VLAI Severity ?
Details
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
{ "affected": [], "aliases": [ "CVE-2023-32246" ], "database_specific": { "cwe_ids": [], "github_reviewed": false, "github_reviewed_at": null, "nvd_published_at": "2025-08-16T14:15:26Z", "severity": null }, "details": "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": "GHSA-75h4-6q93-6c34", "modified": "2025-08-16T15:30:30Z", "published": "2025-08-16T15:30:30Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32246" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bd" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/c053e389db0d892e2ff5a60ec5e533b976503795" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/d4174505016a3b2996eb7ff1530dcabbf15d47b6" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/eb307d09fe15844fdaebeb8cc8c9b9e925430aa5" } ], "schema_version": "1.4.0", "severity": [] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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