Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in register_shm_helper() register_shm_helper() allocates shm before calling iov_iter_npages(). If iov_iter_npages() returns 0, the function jumps to err_ctx_put and leaks shm. This can be triggered by TEE_IOC_SHM_REGISTER with struct tee_ioctl_shm_register_data where length is 0. Jump to err_free_shm instead.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.8, < 6.12.94 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/26682f5efc276e3ad96d102019472bfbf03833b2Patch
- https://git.kernel.org/stable/c/4277759906b44d923a38c8f59f5576501b187b0dPatch
- https://git.kernel.org/stable/c/c10c9c48b2903f41ed4c532043b0576e86228236Patch
- https://git.kernel.org/stable/c/dbf779db927414f5b37c1f666013e9b48a88cfdePatch
FAQ
What is CVE-2026-53210?
CVE-2026-53210 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in register_shm_helper() register_shm_helper() allocates shm before calling iov_iter_npages(). If iov_iter_...
How severe is CVE-2026-53210?
CVE-2026-53210 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-53210?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.