CVE-2026-98504PCI: of_property: Omit bus properties without a subordinate bus
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: PCI: of_property: Omit bus properties without a subordinate bus A bridge (a device with a Type 1 header) may not have a secondary bus allocated (pdev->subordinate), e.g., if there are no available bus numbers or the bridge secondary/subordinate bus numbers are not writable. The dynamic OF helpers of_pci_prop_bus_range() and of_pci_prop_intr_map() dereference pdev->subordinate without checking it. When CONFIG_PCI_DYNAMIC_OF_NODES is enabled, this can cause a NULL pointer dereference and early boot hang. Generate 'bus-range' and 'interrupt-map' properties only when a subordinate bus exists. Keep the node and its remaining properties for bridges without one. The problem was latent since 407d1a51921e ("PCI: Create device tree node for bridge"), but wasn't reachable until 1f340724419e ("PCI: of: Create device tree PCI host bridge node"), which appeared in v6.15. Before 1f340724419e, of_pci_make_dev_node() returned early because the parent OF node was missing. [bhelgaas: move pdev->subordinate test to callees, commit log]
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 407d1a51921e9f28c1bcec647c2205925bd1fdab – < ccd32fa3489cbe86a0b281da4447b4c7eadb3518
- affected 407d1a51921e9f28c1bcec647c2205925bd1fdab – < a6d97d10e49ae49026ae13af6c41634fce470a37
- affected 407d1a51921e9f28c1bcec647c2205925bd1fdab – < 879c911f77b8a7862aa16079b04efc3fdc5d32ec
- affected 407d1a51921e9f28c1bcec647c2205925bd1fdab – < aee774588abd78f75952fd34c3fa461bc46b62c2
- affected 407d1a51921e9f28c1bcec647c2205925bd1fdab – < 8805840aad73df7146778be243a196d48b4f6430
- affected 6.6
- unaffected < 6.6
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.55 – ≤ 6.18.*
- unaffected 7.2.9 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/ccd32fa3489cbe86a0b281da4447b4c7eadb3518 (opens in a new tab)
- https://git.kernel.org/stable/c/a6d97d10e49ae49026ae13af6c41634fce470a37 (opens in a new tab)
- https://git.kernel.org/stable/c/879c911f77b8a7862aa16079b04efc3fdc5d32ec (opens in a new tab)
- https://git.kernel.org/stable/c/aee774588abd78f75952fd34c3fa461bc46b62c2 (opens in a new tab)
- https://git.kernel.org/stable/c/8805840aad73df7146778be243a196d48b4f6430 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-103744 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98504)Record last updated .