CVE-2026-90227
Published: September 19, 2026Last modified: September 28, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a partition device or write through a read-only file descriptor. Pass flags and open_for_write through and reject disallowed commands with -EACCES.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.182-r0) |
| 25 LTS | linux-lts | Fixed (6.12.111-r0) | |
| Stream | linux-lts | Fixed (6.18.53-r0) |
References
- https://git.kernel.org/stable/c/736b7c6adc7a65c4411beff197b6a634f7a6ca27
- https://git.kernel.org/stable/c/95b0591d51dbf9e618d7845883d535e88ad7c8af
- https://git.kernel.org/stable/c/b116e9dae433ff631f94c36c61a7a78fe400ed1e
- https://git.kernel.org/stable/c/b53d495c7f0db46b6748b5ade48371a10dd5d3bc
- https://git.kernel.org/stable/c/c35cd98eed1a863e8dd51073953563cd8c907f68