CVE-2026-64290

5.5 Moyenne

Publiée le 25/07/2026 à 12:17 · Modifiée le 17/08/2026 à 07:17 · Analysée par le NVD · Source : 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Description

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.

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Produits concernés

Linux
Linux linux kernel

Scores CVSS

Version	Score	Source	Vecteur
3.1	5.5 Moyenne	nvd@nist.gov (NVD)	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-835

Références

https://git.kernel.org/stable/c/172fc8b19825a0f5884c38f2289188284e2d45ee Patch
https://git.kernel.org/stable/c/5539da127d03c1f6c2e2a49fdfbe331a0ccbdea8 Patch
https://git.kernel.org/stable/c/a38e0714affc5c0bbb40cba5a65d6d32a5e72a71 Patch
https://git.kernel.org/stable/c/f66c16b175509642ee7082df57c9bf3deaebae1a Patch

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories