CVE-2026-53280
kernel: iommu: Fix NULL group->domain dereference in pci_dev_reset_iommu_done()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 26, 2026
Updated · July 8, 2026
Description
A flaw was found in the Linux kernel's Input-Output Memory Management Unit (IOMMU) component. This vulnerability occurs when a default IOMMU domain fails to allocate during the initial probe, leading to a NULL pointer dereference. This can cause a system crash, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference