GSD-2023-1002063 cifs: Fix oops due to uncleared server->smbd_conn in reconnect
A null pointer dereference in the Linux Kernel CIFS module can cause a system crash during reconnection, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1002063?
GSD-2023-1002063 is a vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
cifs: Fix oops due to uncleared server->smbd_conn in reconnect
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.91 by commit 4b83bc6f87eedab4599b0123e572a422689444be, it was introduced in version v4.16 by commit 8ef130f9ec27973f7b49e20c5a3b9134ca33026c. For more details please see the references link.
Which versions are affected by GSD-2023-1002063?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002063?
No fix has been published for GSD-2023-1002063 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1002063 being exploited?
There is no known exploitation of GSD-2023-1002063 in the wild and no public exploit code.