CVE-2026-92505
- Source
- https://cve.org/CVERecord?id=CVE-2026-92505
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92505.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-92505
- Downstream
- Published
- 2026-09-17T16:10:17Z
- Modified
- 2026-09-19T03:47:30Z
- Summary
- iommu/amd: Fix undefined behavior in devid_write debugfs function
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
iommu/amd: Fix undefined behavior in devid_write debugfs function
When for_each_pci_segment() loop completes without finding a matching segment, the pci_seg pointer is not NULL but points to an invalid memory location (the list head). Accessing pci_seg->id after the loop causes undefined behavior.
Fix this by handling the successful case inside the loop and returning -EINVAL after the loop if no matching segment is found.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92505.json" }- References
-
- https://git.kernel.org/stable/c/843e149989665f8309ad2efe6048dc76591e1f94
- https://git.kernel.org/stable/c/8aabe0fba01486b5d893e708b05a8fa7f1b7efbb
- https://git.kernel.org/stable/c/99d42aef089a07cfb1d404a7227ac9dc7628b497
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92505.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-92505
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git