CVE-2025-40031
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7bdee41575919773818e525ea19e54eb817770af < 9338093db954918558677a468d32e77041c65167 | affected |
| Linux | Linux | 7bdee41575919773818e525ea19e54eb817770af < 6a7874ab814ce12003c46a92f7afc9b035c8e8e9 | affected |
| Linux | Linux | 7bdee41575919773818e525ea19e54eb817770af < d5cf5b37064b1699d946e8b7ab4ac7d7d101814c | affected |
| Linux | Linux | 6.8 | affected |
| Linux | Linux | 0 < 6.8 | unaffected |
| Linux | Linux | 6.12.53 <= 6.12.* | unaffected |
| Linux | Linux | 6.17.3 <= 6.17.* | unaffected |
| Linux | Linux | 6.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/9338093db954918558677a468d32e77041c65167
- https://git.kernel.org/stable/c/6a7874ab814ce12003c46a92f7afc9b035c8e8e9
- https://git.kernel.org/stable/c/d5cf5b37064b1699d946e8b7ab4ac7d7d101814c
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