CVE-2023-32246
mediumpriority · track · 22EPSS 0.002 · 7 %ileDEEURUUSEPSS · scored 2026-10-27
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
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (21)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-1255Linux Kernel (ksmbd): Mehrere SchwachstellenDeutsch2023-05-18csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service-Zustand herbeizuführen, Informationen offenzulegen, Sicherheitsvorkehrungen zu umgehen, Privilegien zu erweitern und beliebigen Code auszuführen.
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (17)
External citations — patches, advisories, analysis.
- https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bdcnnvd
- https://git.kernel.org/stable/c/b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2cnnvd
- https://git.kernel.org/stable/c/c053e389db0d892e2ff5a60ec5e533b976503795cnnvd
- https://git.kernel.org/stable/c/d4174505016a3b2996eb7ff1530dcabbf15d47b6cnnvd
- https://git.kernel.org/stable/c/eb307d09fe15844fdaebeb8cc8c9b9e925430aa5cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2023-32246cnnvd
- https://www.kernel.org/Patchcnnvd
- https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bdenisa_euvd
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