GSD-2022-1007489 nbd: Fix hung when signal interrupts nbd_start_device_ioctl()
A local attacker can cause a system hang in the Linux kernel NBD driver by interrupting a specific ioctl call with a signal.
- 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-2022-1007489?
GSD-2022-1007489 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
nbd: Fix hung when signal interrupts nbd_start_device_ioctl()
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 v4.19.262 by commit c7b4641bd2395c2f3cd3b0a0cbf292ed9d489398. For more details please see the references link.
Which versions are affected by GSD-2022-1007489?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1007489?
No fix has been published for GSD-2022-1007489 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-2022-1007489 being exploited?
There is no known exploitation of GSD-2022-1007489 in the wild and no public exploit code.