GSD-2021-1001823 dma-debug: fix sg checks in debug_dma_map_sg()
A bug in the Linux kernel's DMA debug subsystem could cause incorrect scatter-gather checks, potentially leading to system instability or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001823?
GSD-2021-1001823 is a vulnerability in Kernel, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
dma-debug: fix sg checks in debug_dma_map_sg()
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 v5.4.156 by commit 0f5b08ca22e1930d2cb0aa176355434b927537bc, it was introduced in version v2.6.31 by commit 884d05970bfbc3db368f23460dc4ce63257f240d. For more details please see the references link.
Which versions are affected by GSD-2021-1001823?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001823?
No fix has been published for GSD-2021-1001823 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1001823 being exploited?
There is no known exploitation of GSD-2021-1001823 in the wild and no public exploit code.