CVE-2025-40062 - CVE House
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Status published Unknown CVE-2025-40062

crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs When the initialization of qm->debug.acc_diff_reg fails, the probe process does not exit. However, after qm->debug.qm_diff_regs is freed, it is not set to NULL. This can lead to a double free when the remove process attempts to free it again. Therefore, qm->debug.qm_diff_regs should be set to NULL after it is freed.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c, 7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e, 8be0913389718e8d27c4f1d4537b5e1b99ed7739, e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3, 6.1.98, 6.6.39, 6.9.9, 6.10, 0, 6.1.156, 6.6.112, 6.12.53, 6.17.3, 6.18

Timeline

Official Publish: October 28th, 2025
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.