GSD-2022-1000603 bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
A NULL pointer dereference in the Linux kernel's BPF 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-2022-1000603?
GSD-2022-1000603 is a vulnerability in Kernel, published on 27 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
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 v5.16.5 by commit b82ef4985a6d05e80f604624332430351df7b79a, it was introduced in version v5.9 by commit fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0. For more details please see the references link.
Which versions are affected by GSD-2022-1000603?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000603?
No fix has been published for GSD-2022-1000603 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1000603 being exploited?
There is no known exploitation of GSD-2022-1000603 in the wild and no public exploit code.