GSD-2021-1000895 ftrace: Do not blindly read the ip address in ftrace_bug()
A null pointer dereference in the Linux kernel ftrace subsystem can cause a system 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-2021-1000895?
GSD-2021-1000895 is a vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ftrace: Do not blindly read the ip address in ftrace_bug()
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 v5.4.126 by commit 7e4e824b109f1d41ccf223fbb0565d877d6223a2, it was introduced in version v2.6.28 by commit 05736a427f7e16be948ccbf39782bd3a6ae16b14. For more details please see the references link.
Which versions are affected by GSD-2021-1000895?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000895?
No fix has been published for GSD-2021-1000895 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000895 being exploited?
There is no known exploitation of GSD-2021-1000895 in the wild and no public exploit code.