CVE-2026-53188
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate the passed in fops for ib_get_ucaps() Sashiko pointed out it is not safe to rely only on the devt because char/block alias so if the user finds a block device with the same dev_t it can masquerade as a ucap cdev fd. Test the f_ops to only accept authentic cdevs.
- Published Jun 25, 2026
- CVSS 8.8 high
- 0.1% chance of exploitation in the next 30 days (EPSS)
- A fix is available