CVE-2025-40062

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/1750f1ec143ebabdbdfa013668665c9d5042c430
https://git.kernel.org/stable/c/7226a0650ad5705bd8d39a11be270fa21ed1e6a5
https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc
https://git.kernel.org/stable/c/a87a21a56244b8f4eb357f6bad879247005bbe38
https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1

Configurations

No configuration.

History

No history.

Information

Published : 2025-10-28 12:15

Updated : 2026-06-17 09:21

NVD link : CVE-2025-40062

Mitre link : CVE-2025-40062

CVE.ORG link : CVE-2025-40062

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2025-40062", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c", "lessThan": "a7836260d5121949ba734e840d42a86ab4a32fcc", "versionType": "git"}, {"status": "affected", "version": "7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e", "lessThan": "1750f1ec143ebabdbdfa013668665c9d5042c430", "versionType": "git"}, {"status": "affected", "version": "8be0913389718e8d27c4f1d4537b5e1b99ed7739", "lessThan": "a87a21a56244b8f4eb357f6bad879247005bbe38", "versionType": "git"}, {"status": "affected", "version": "8be0913389718e8d27c4f1d4537b5e1b99ed7739", "lessThan": "7226a0650ad5705bd8d39a11be270fa21ed1e6a5", "versionType": "git"}, {"status": "affected", "version": "8be0913389718e8d27c4f1d4537b5e1b99ed7739", "lessThan": "f0cafb02de883b3b413d34eb079c9680782a9cc1", "versionType": "git"}, {"status": "affected", "version": "e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3", "versionType": "git"}, {"status": "affected", "version": "6.1.98", "lessThan": "6.1.156", "versionType": "semver"}, {"status": "affected", "version": "6.6.39", "lessThan": "6.6.112", "versionType": "semver"}, {"status": "affected", "version": "6.9.9", "lessThan": "6.10", "versionType": "semver"}], "programFiles": ["drivers/crypto/hisilicon/debugfs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"status": "unaffected", "version": "0", "lessThan": "6.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.156", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.112", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.53", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.17.3", "versionType": "semver", "lessThanOrEqual": "6.17.*"}, {"status": "unaffected", "version": "6.18", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/crypto/hisilicon/debugfs.c"], "defaultStatus": "affected"}]}], "published": "2025-10-28T12:15:40.610", "references": [{"url": "https://git.kernel.org/stable/c/1750f1ec143ebabdbdfa013668665c9d5042c430", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7226a0650ad5705bd8d39a11be270fa21ed1e6a5", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a87a21a56244b8f4eb357f6bad879247005bbe38", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Deferred", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs\n\nWhen the initialization of qm->debug.acc_diff_reg fails,\nthe probe process does not exit. However, after qm->debug.qm_diff_regs is\nfreed, it is not set to NULL. This can lead to a double free when the\nremove process attempts to free it again. Therefore, qm->debug.qm_diff_regs\nshould be set to NULL after it is freed."}], "lastModified": "2026-06-17T09:21:12.100", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}