CVEvulnerability
CVE-2025-40062
- Status
- Deferred
- Published
- 2025-10-28
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/1750f1ec143ebabdbdfa013668665c9d5042c430 git.kernel.org
- https://git.kernel.org/stable/c/7226a0650ad5705bd8d39a11be270fa21ed1e6a5 git.kernel.org
- https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc git.kernel.org
- https://git.kernel.org/stable/c/a87a21a56244b8f4eb357f6bad879247005bbe38 git.kernel.org
- https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1 git.kernel.org