MEDIUMVulnerability
CVE-2026-64290
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.
Properties
- severity
- MEDIUM
- score
- 5.5
- cve_id
- CVE-2026-64290
- vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-07-25T10:17:09.730
- last_modified
- 2026-08-12T15:56:43.650
Related Entities (3)
HAS_WEAKNESS (1)
→[Weakness]Loop with Unreachable Exit Condition ('Infinite Loop')
DESCRIBED_BY (1)
→[Source]NVD
AFFECTS_PRODUCT (1)
→[Product]
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