CVE-2023-32246Medium· 5.5▾ SunlitIn 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 calle…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.2%
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
linux_kernel >= 5.15, < 5.15.111linux_kernel >= 5.16, < 6.1.28linux_kernel >= 6.2, < 6.2.15linux_kernel >= 6.3, < 6.3.2Upgrade past the affected range:
linux_kernel 6.3.2Connected by shared product, vendor, weakness, or advisory.
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CVE-2022-36123High· 7.8The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss)
CVE-2022-34918High· 7.8An issue was discovered in the Linux kernel through 5.18.9
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