GSD-2022-1006982 cifs: Fix xid leak in cifs_copy_file_range()
A resource leak in the Linux Kernel CIFS module allows local attackers to exhaust system resources, potentially causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1006982?
GSD-2022-1006982 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
cifs: Fix xid leak in cifs_copy_file_range()
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 v5.15.76 by commit 27cfd3afaab000a455194338db3b7f2031fde9d0, it was introduced in version v5.7 by commit 4e8aea30f7751ce7c4b158aa0c04e7744d281cc3. For more details please see the references link.
Which versions are affected by GSD-2022-1006982?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1006982?
No fix has been published for GSD-2022-1006982 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1006982 being exploited?
There is no known exploitation of GSD-2022-1006982 in the wild and no public exploit code.