crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs
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.
02 / AFFECTED SOFTWARE
Affected packages
958 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40062.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40062