Description

In the Linux kernel, the following vulnerability has been resolved: tee: fix register_shm_helper() In register_shm_helper(), fix incorrect error handling for a call to iov_iter_extract_pages(). A case is missing for when iov_iter_extract_pages() only got some pages and return a number larger than 0, but not the requested amount. This fixes a possible NULL pointer dereference following a bad input from ioctl(TEE_IOC_SHM_REGISTER) where parts of the buffer isn't mapped.

INFO

Published Date :

2025-10-28T11:48:13.644Z

Last Modified :

2025-12-01T06:16:34.067Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2025-40031 vulnerability.

Vendors Products
Linux
  • Linux Kernel
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-40031.

URL Resource
https://git.kernel.org/stable/c/6a7874ab814ce12003c46a92f7afc9b035c8e8e9 cve-icon cve-icon
https://git.kernel.org/stable/c/9338093db954918558677a468d32e77041c65167 cve-icon cve-icon
https://git.kernel.org/stable/c/d5cf5b37064b1699d946e8b7ab4ac7d7d101814c cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102810-CVE-2025-40031-3ff1@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40031 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40031 cve-icon
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