PT-2026-64511 · Linux · Linux

CVE-2026-64290 · Publicado 2026-07-25 · Atualizado 2026-07-25

Mitre

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.

Identificadores relacionados

CVE-2026-64290

Produtos afetados

Linux

Referências · 4

• https://git.kernel.org/stable/c/172fc8b19825a0f5884c38f2289188284e2d45ee · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-64290 · Nota de Segurança
• https://git.kernel.org/stable/c/5539da127d03c1f6c2e2a49fdfbe331a0ccbdea8 · Nota
• https://git.kernel.org/stable/c/f66c16b175509642ee7082df57c9bf3deaebae1a · Nota