PT-2025-40632 · Linux · Linux Kernel

CVE-2025-39936

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Published

2025-09-13

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Updated

2026-07-24

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.17.0-rc4+ #1
Description The Linux kernel contained an issue in the crypto/ccp module where the sev platform shutdown locked() function was called with a NULL argument, leading to a NULL pointer dereference during suspend to disk. This occurred because an error pointer was not consistently passed to the function. The issue was addressed by ensuring a pointer to a function-local error variable is passed in the caller. This resulted in proper error reporting during suspension and shutdown of the ccp driver.
Recommendations Update to a version newer than 6.17.0-rc4+ #1.

Exploit

Fix

NULL Pointer Dereference

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Weakness Enumeration

Related Identifiers

BDU:2026-04496
CVE-2025-39936

Affected Products

Linux Kernel