Linux vulnerability

What happened

In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel: punit_ipc: fix memory corruption This passes the address of the pointer "&punit_ipcdev" when the intent was to pass the pointer itself "punit_ipcdev" (without the ampersand). This means that the: complete(&ipcdev->cmd_complete); in intel_punit_ioc() will write to a wrong memory address corrupting it.

Affected versions

Linux: fdca4f16f57da76a8e68047923588a87d1c01f0a through before 15d560cdf5b36c51fffec07ac2a983ab3bff4cb2 (git); fdca4f16f57da76a8e68047923588a87d1c01f0a through before 46e9d6f54184573dae1dcbcf6685a572ba6f4480 (git); fdca4f16f57da76a8e68047923588a87d1c01f0a through before 3e7442c5802146fd418ba3f68dcb9ca92b5cec83 (git); fdca4f16f57da76a8e68047923588a87d1c01f0a through before a21615a4ac6fecbb586d59fe2206b63501021789 (git); fdca4f16f57da76a8e68047923588a87d1c01f0a through before c2ee6d38996775a19bfdf20cb01a9b8698cb0baa (git); fdca4f16f57da76a8e68047923588a87d1c01f0a through before 9b9c0adbc3f8a524d291baccc9d0c04097fb4869 (git); 4.5 Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.