GSD-2023-1001738 tty: fix possible null-ptr-defer in spk_ttyio_release
A null pointer dereference in the Linux kernel's TTY subsystem allows local attackers to cause a system crash.
- 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-2023-1001738?
GSD-2023-1001738 is a vulnerability in Kernel, published on 31 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
tty: fix possible null-ptr-defer in spk_ttyio_release
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 v5.15.90 by commit 2da67bff29ab49caafb0766e8b8383b735ff796f, it was introduced in version v5.12 by commit 4f2a81f3a88217e7340b2cab5c0a5ebd0112514c. For more details please see the references link.
Which versions are affected by GSD-2023-1001738?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001738?
No fix has been published for GSD-2023-1001738 yet. Limit exposure of the affected software until one is available.
Is GSD-2023-1001738 being exploited?
There is no known exploitation of GSD-2023-1001738 in the wild and no public exploit code.