Linux Kernel FEC Driver PTP State Save Crash Fix

From this webpage screenshot, we can extract the following key information about the vulnerability: 1. Vulnerability Description: - Title: net: fec: don't save PTP state if PTP is unsupported - Description: Some platforms (such as i.MX25 and i.MX27) do not support PTP. Therefore, on these platforms, the function is not called, and related members in are not initialized. However, is unconditionally called, leading to a kernel crash. Hence, a condition must be added to prevent calling when PTP is unsupported. 2. Fix Details: - Fix Commit: 6be063071a457767ee229db13f019c2ec03bfe44 - Fixer: Wei Fang - Fix Time: 2024-10-08 14:11:53 +0800 3. Related Links: - Original Issue: https://lore.kernel.org/lkml/353e41fe-6bb4-4ee9-9980-2da2a9c1c508@roeck-us.net/ - Reporter: Guenter Roeck - Reviewers: Bence Csokas , Simon Hormann , Guenter Roeck - Tester: Jakub Kicinski - Submitter: Greg Kroah-Hartman 4. Code Changes: - File: drivers/net/ethernet/freescale/fec_main.c - Changes: - Removed the call to - Added a conditional check to call only if PTP is supported 5. Patch Status: - Patch Status: Merged into upstream This information helps us understand the vulnerability's background, the fix process, and the specific code changes made.

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Linux Kernel FEC Driver PTP State Save Crash Fix