CVE-2026-64290
iommufd: Break the loop on failure in iommufd_fault_fops_read()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: iommufd: Break the loop on failure in iommufd_fault_fops_read() On a copy_to_user() failure inside the inner list_for_each_entry, only the inner loop breaks; the outer while re-fetches the just-restored fault group and retries the failing copy_to_user() forever, spinning the reader at 100% CPU with fault->mutex held. Check rc after the inner loop and break the outer while as well.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
07838f7fd529c8a6de44b601d4b7057e6c8d36ed < 5539da127d03c1f6c2e2a49fdfbe331a0ccbdea8 07838f7fd529c8a6de44b601d4b7057e6c8d36ed < f66c16b175509642ee7082df57c9bf3deaebae1a 07838f7fd529c8a6de44b601d4b7057e6c8d36ed < 172fc8b19825a0f5884c38f2289188284e2d45ee
Linux / Linux
6.11