GSD-2023-1002217 net/sched: sch_taprio: fix possible use-after-free
A use-after-free vulnerability in the Linux kernel's taprio scheduler allows local attackers to potentially execute code or escalate privileges.
- 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-2023-1002217?
GSD-2023-1002217 is an use after free 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
net/sched: sch_taprio: fix possible use-after-free
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 v5.4.231 by commit 1200388a0b1c3c6fda48d4d2143db8f7e4ef5348, it was introduced in version v4.20 by commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22. For more details please see the references link.
Which versions are affected by GSD-2023-1002217?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002217?
No fix has been published for GSD-2023-1002217 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2023-1002217 being exploited?
There is no known exploitation of GSD-2023-1002217 in the wild and no public exploit code.