GSD-2021-1001847 can: isotp: isotp_sendmsg(): add result check for wait_event_interruptible()
Missing result check in Linux Kernel CAN ISO-TP implementation may lead to denial of service for local attackers.
- 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-2021-1001847?
GSD-2021-1001847 is a denial of service vulnerability in Kernel, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
can: isotp: isotp_sendmsg(): add result check for wait_event_interruptible()
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 v5.10.76 by commit 053bc12df0d6097c1126d0e14fa778a0a8faeb64, it was introduced in version v5.10 by commit e057dd3fc20ffb3d7f150af46542a51b59b90127. For more details please see the references link.
Which versions are affected by GSD-2021-1001847?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001847?
No fix has been published for GSD-2021-1001847 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-2021-1001847 being exploited?
There is no known exploitation of GSD-2021-1001847 in the wild and no public exploit code.