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CVE-2025-68303: platform/x86: intel: punit_ipc: fix memory corruption

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-16 · updated 2026-10-13

Description

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 products

• Linux kernel: 4.5 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/15d560cdf5b36c51fffec07ac2a983ab3bff4cb2
• https://git.kernel.org/stable/c/3e7442c5802146fd418ba3f68dcb9ca92b5cec83
• https://git.kernel.org/stable/c/46e9d6f54184573dae1dcbcf6685a572ba6f4480
• https://git.kernel.org/stable/c/9b9c0adbc3f8a524d291baccc9d0c04097fb4869
• https://git.kernel.org/stable/c/a21615a4ac6fecbb586d59fe2206b63501021789
• https://git.kernel.org/stable/c/c2ee6d38996775a19bfdf20cb01a9b8698cb0baa

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