Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before c053e389db0d892e2ff5a60ec5e533b976503795; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before d4174505016a3b2996eb7ff1530dcabbf15d47b6; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before 5a7090ccc242ab009ee7769e9d7fad6644dbe9bd; affected e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 before eb307d09fe15844fdaebeb8cc8c9b9e925430aa5 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.111 through 5.15.*; unaffected 6.1.28 through 6.1.*; unaffected 6.2.15 through 6.2.*; unaffected 6.3.2 through 6.3.*; unaffected 6.4 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c053e389db0d892e2ff5a60ec5e533b976503795
- https://git.kernel.org/stable/c/b80422474ffe44cb5e813cd6da1f1c6bc50fd9d2
- https://git.kernel.org/stable/c/d4174505016a3b2996eb7ff1530dcabbf15d47b6
- https://git.kernel.org/stable/c/5a7090ccc242ab009ee7769e9d7fad6644dbe9bd
- https://git.kernel.org/stable/c/eb307d09fe15844fdaebeb8cc8c9b9e925430aa5