GSD-2022-1001518 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-2022-1001518?
GSD-2022-1001518 is a memory corruption 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 v5.16.19 by commit f677328f05f52d535cbdc15cb04476db49477eb4, it was introduced in version v4.20 by commit 604326b41a6fb9b4a78b6179335decee0365cd8c. For more details please see the references link.
Which versions are affected by GSD-2022-1001518?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001518?
No fix has been published for GSD-2022-1001518 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2022-1001518 being exploited?
There is no known exploitation of GSD-2022-1001518 in the wild and no public exploit code.