GSD-2021-1001692 net/sched: sch_taprio: properly cancel timer from taprio_destroy()
A race condition in the Linux kernel's taprio scheduler can lead to a use-after-free or crash, requiring local privileged access to exploit.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001692?
GSD-2021-1001692 is a vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net/sched: sch_taprio: properly cancel timer from taprio_destroy()
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 v5.14.12 by commit 7a1c1af341041221b3acb9d7036cc2b43e0efa75, it was introduced in version v5.11 by commit 44d4775ca51805b376a8db5b34f650434a08e556. For more details please see the references link.
Which versions are affected by GSD-2021-1001692?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001692?
No fix has been published for GSD-2021-1001692 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001692 being exploited?
There is no known exploitation of GSD-2021-1001692 in the wild and no public exploit code.