Critical · published May 20, 2024
🔥 A sneaky flaw in the Linux kernel could send your flow group crashing down when deleting rules! ⚠️ Think of it like a team of workers trying to organize a warehouse. If one worker adds a new shelf but forgets to properly link it to the overall layout, it could cause chaos when trying to remove items later — like discovering a shelf without a connection to the main structure! This vulnerability can lead to a system crash when the flow group attempts to delete a node that mistakenly lacks a parent connection. The result? An absolute fiasco, as it could bring your system to a standstill and disrupt operations. It's critical to address this before it catches you off guard!
Think of it like a team of workers trying to organize a warehouse. If one worker adds a new shelf but forgets to properly link it to the overall layout, it could cause chaos when trying to remove items later — like discovering a shelf without a connection to the main structure! The vulnerability occurs in the Linux kernel's handling of flow rules, specifically when newly created rules are not properly linked into the tree structure, resulting in a NULL parent reference during deletion. This inconsistency can cause crashes when the system attempts to manage flow rules.
This vulnerability can lead to a system crash when the flow group attempts to delete a node that mistakenly lacks a parent connection. The result? An absolute fiasco, as it could bring your system to a standstill and disrupt operations. It's critical to address this before it catches you off guard! Update your Linux kernel to the patched version promptly to protect against this issue. Ensure that the flow rules are correctly linked to prevent potential crashes when performing deletions. Regularly review your kernel updates to keep your systems secure! You've got this! With these updates, you'll keep your systems running smoothly and securely! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.10, < 4.19.313 | 4.19.313 |
| linux/linux_kernel | ≥ 4.20, < 5.4.275 | 5.4.275 |
| linux/linux_kernel | ≥ 5.5, < 5.10.216 | 5.10.216 |
| linux/linux_kernel | ≥ 5.11, < 5.15.156 | 5.15.156 |
| linux/linux_kernel | ≥ 5.16, < 6.1.87 | 6.1.87 |
| linux/linux_kernel | ≥ 6.2, < 6.6.28 | 6.6.28 |
| linux/linux_kernel | ≥ 6.7, < 6.8.7 | 6.8.7 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| debian/debian_linux | all versions | — |