GSD-2022-1001208 bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full
A memory leak in the Linux kernel's BPF sockmap implementation can lead to resource exhaustion and denial of service.
- 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-2022-1001208?
GSD-2022-1001208 is a denial of service vulnerability in Kernel, published on 24 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full
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 v5.17.2 by commit d0b85dfc6f01d26808e2576c6537c131b590e270, it was introduced in version v4.20 by commit 604326b41a6fb9b4a78b6179335decee0365cd8c. For more details please see the references link.
Which versions are affected by GSD-2022-1001208?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001208?
No fix has been published for GSD-2022-1001208 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-2022-1001208 being exploited?
There is no known exploitation of GSD-2022-1001208 in the wild and no public exploit code.