GSD-2022-1004527 tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.
A race condition in the Linux kernel TCP stack can lead to denial of service via concurrent access to fastopen blackhole timeout settings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1004527?
GSD-2022-1004527 is a vulnerability in Kernel, published on 31 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tcp: Fix data-races around sysctl_tcp_fastopen_blackhole_timeout.
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 v5.10.134 by commit 0dc2f19d8c2636cebda7976b5ea40c6d69f0d891, it was introduced in version v4.12 by commit cf1ef3f0719b4dcb74810ed507e2a2540f9811b4. For more details please see the references link.
Which versions are affected by GSD-2022-1004527?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1004527?
No fix has been published for GSD-2022-1004527 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1004527 being exploited?
There is no known exploitation of GSD-2022-1004527 in the wild and no public exploit code.