CVE-2023-32246

CVE-2023-32246: vulnerability in Linux

ksmbd: call rcu_barrier() in ksmbd_server_exit()

Published · Updated

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · Linux
Related CVEs — Linux

In the same product, most dangerous first.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2025-39964HIGHcrypto: af_alg - Disallow concurrent writes in af_alg_sendmsgEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bdhttps://git.kernel.org/stable/c/b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2https://git.kernel.org/stable/c/c053e389db0d892e2ff5a60ec5e533b976503795https://git.kernel.org/stable/c/d4174505016a3b2996eb7ff1530dcabbf15d47b6https://git.kernel.org/stable/c/eb307d09fe15844fdaebeb8cc8c9b9e925430aa5