What’s Vulnerable › Vulnerabilities

CVE-2026-90227: nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-19

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.

Affected products

• Linux kernel: 3.3 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

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

Get alerted when CVE-2026-90227 or the next vulnerability affects your stack