CVE-2023-53733

Linux Kernel 4.7-6.1.41, 6.2.0-6.4.6 - Use-After-Free in cls_u32 Filter Replacement

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: net: sched: cls_u32: Undo tcf_bind_filter if u32_replace_hw_knode When u32_replace_hw_knode fails, we need to undo the tcf_bind_filter operation done at u32_set_parms.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/a9345793469b65ee5ba7b033239916c2a67d3dd4

Patch

https://git.kernel.org/stable/c/025159ed118ba5145b241d574edadb0e00d3c20f

Patch

https://git.kernel.org/stable/c/9cb36faedeafb9720ac236aeae2ea57091d90a09

Scores

EPSS 0.0019

EPSS Percentile 8.4%

Details

Status published

Products (10)

linux/Kernel 4.7.0 - 6.1.42linux

linux/Kernel 6.2.0 - 6.4.7linux

Linux/Linux < 4.7

Linux/Linux 4.7

Linux/Linux 6.1.42 - 6.1.*

Linux/Linux 6.4.7 - 6.4.*

Linux/Linux 6.5

Linux/Linux d34e3e181395192d6d1f50dd97bd7854e04e33a4 - 025159ed118ba5145b241d574edadb0e00d3c20f

Linux/Linux d34e3e181395192d6d1f50dd97bd7854e04e33a4 - 9cb36faedeafb9720ac236aeae2ea57091d90a09

Linux/Linux d34e3e181395192d6d1f50dd97bd7854e04e33a4 - a9345793469b65ee5ba7b033239916c2a67d3dd4

Published Oct 24, 2025

Tracked Since Feb 18, 2026