Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ublk: use READ_ONCE() to read struct ublksrv_ctrl_cmd struct ublksrv_ctrl_cmd is part of the io_uring_sqe, which may lie in userspace-mapped memory. It's racy to access its fields with normal loads, as userspace may write to them concurrently. Use READ_ONCE() to copy the ublksrv_ctrl_cmd from the io_uring_sqe to the stack. Use the local copy in place of the one in the io_uring_sqe.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 87213b0d847cd300285b5545598e0548baeb5208 before ce63eda3e6d36e2c253febee1c8421ecbd1a680e; affected 87213b0d847cd300285b5545598e0548baeb5208 before ed9f54cc1e335096733aed03c2a46de3d58922ed |
| Linux / Linux | affected 6.19; unaffected 0 before 6.19; unaffected 6.19.4 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.