CVE-2024-50204 fs: don't try and remove empty rbtree node

What is CVE-2024-50204?

CVE-2024-50204 is a medium-severity vulnerability in Linux kernel, published on 8 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

fs: don't try and remove empty rbtree node

When copying a namespace we won't have added the new copy into the namespace rbtree until after the copy succeeded. Calling free_mnt_ns() will try to remove the copy from the rbtree which is invalid. Simply free the namespace skeleton directly.

Which versions are affected by CVE-2024-50204?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-50204?

Apply the vendor's patch.

Is CVE-2024-50204 being exploited?

There is no known exploitation of CVE-2024-50204 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-50204, DEBIAN-CVE-2024-50204, GHSA-pp64-vq4m-47h3, UBUNTU-CVE-2024-50204.