GSD-2021-1000572 NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
A NULL pointer dereference in the Linux Kernel NFSv4 subsystem allows remote attackers to cause a 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-2021-1000572?
GSD-2021-1000572 is a vulnerability in Kernel, published on 4 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()
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 v5.12.9 by commit b090d110e66636bca473fd8b98d5c97b555a965a, it was introduced in version v5.12.3 by commit 7e65ea887d0c0997f3053acd91a027af45e71c5b. For more details please see the references link.
Which versions are affected by GSD-2021-1000572?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000572?
No fix has been published for GSD-2021-1000572 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000572 being exploited?
There is no known exploitation of GSD-2021-1000572 in the wild and no public exploit code.