GSD-2021-1000074 riscv/kprobe: fix kernel panic when invoking sys_read traced by kprobe
A local attacker can trigger a kernel panic on RISC-V systems by invoking sys_read while traced by kprobe, causing a denial of service.
- 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-2021-1000074?
GSD-2021-1000074 is a denial of service vulnerability in Kernel, published on 31 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
riscv/kprobe: fix kernel panic when invoking sys_read traced by kprobe
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 v5.12.3 by commit fd0f06590d35c99f98d12c7984897ec4201a6263, it was introduced in version v5.12 by commit c22b0bcb1dd024cb9caad9230e3a387d8b061df5. For more details please see the references link.
Which versions are affected by GSD-2021-1000074?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000074?
No fix has been published for GSD-2021-1000074 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2021-1000074 being exploited?
There is no known exploitation of GSD-2021-1000074 in the wild and no public exploit code.