GSD-2021-1000841 net/qla3xxx: fix schedule while atomic in ql_sem_spinlock
A scheduling while atomic bug in the qla3xxx network driver can cause a system crash, requiring a kernel patch.
- 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-2021-1000841?
GSD-2021-1000841 is a denial of service 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
net/qla3xxx: fix schedule while atomic in ql_sem_spinlock
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 v4.9.273 by commit f77d9c0c3aa0a1bc4f5882457b4e3d68938659f8. For more details please see the references link.
Which versions are affected by GSD-2021-1000841?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000841?
No fix has been published for GSD-2021-1000841 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-2021-1000841 being exploited?
There is no known exploitation of GSD-2021-1000841 in the wild and no public exploit code.