GSD-2022-1000506 tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case
A flaw in the Linux kernel TCP stack handling mixed splice and sendmsg operations can lead to memory corruption, potentially allowing remote attackers to cause denial of service or execute code.
- 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-2022-1000506?
GSD-2022-1000506 is a memory corruption vulnerability in Kernel, published on 27 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tcp: take care of mixed splice()/sendmsg(MSG_ZEROCOPY) case
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 v5.16.10 by commit 47f3860c4931175f112f28dcac66eacca9b1040f, it was introduced in version v5.16 by commit f1a456f8f3fc5828d8abcad941860380ae147b1d. For more details please see the references link.
Which versions are affected by GSD-2022-1000506?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000506?
No fix has been published for GSD-2022-1000506 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-2022-1000506 being exploited?
There is no known exploitation of GSD-2022-1000506 in the wild and no public exploit code.