CVE-2026-53210
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJun 25, 2026
First seenJun 25, 2026
How to fix
Update
- linux linux_kernel6.12.94, 6.18.36, 7.0.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.8 ≤ v < 6.12.94, 6.13 ≤ v < 6.18.36, 6.19 ≤ v < 7.0.13, 7.1 | 6.12.94, 6.18.36, 7.0.13 |
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