CVE-2024-26918PCI: Fix active state requirement in PME polling
- 6.2MediumCVSS base score
- 0.23%Exploitation in 30 daysEPSS · top 86% 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: Fix active state requirement in PME polling The commit noted in fixes added a bogus requirement that runtime PM managed devices need to be in the RPM_ACTIVE state for PME polling. In fact, only devices in low power states should be polled. However there's still a requirement that the device config space must be accessible, which has implications for both the current state of the polled device and the parent bridge, when present. It's not sufficient to assume the bridge remains in D0 and cases have been observed where the bridge passes the D0 test, but the PM state indicates RPM_SUSPENDING and config space of the polled device becomes inaccessible during pci_pme_wakeup(). Therefore, since the bridge is already effectively required to be in the RPM_ACTIVE state, formalize this in the code and elevate the PM usage count to maintain the state while polling the subordinate device. This resolves a regression reported in the bugzilla below where a Thunderbolt/USB4 hierarchy fails to scan for an attached NVMe endpoint downstream of a bridge in a D3hot power state.
Timeline
ID reserved
By Linux
- 58 days later
· 58 days later
Published
- 2 years later
· 2 years 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.23% · top 86% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.2.
Affected products
- affected d3fcd7360338358aa0036bec6d2cf0e37a0ca624 – < 63b1a3d9dd3b3f6d67f524e76270e66767090583
- affected d3fcd7360338358aa0036bec6d2cf0e37a0ca624 – < a4f12e5cbac2865c151d1e97e36eb24205afb23b
- affected d3fcd7360338358aa0036bec6d2cf0e37a0ca624 – < 41044d5360685e78a869d40a168491a70cdb7e73
- affected 6.6
- unaffected < 6.6
- unaffected 6.6.18 – ≤ 6.6.*
- unaffected 6.7.6 – ≤ 6.7.*
- unaffected 6.8 – ≤ *
References
References3
- https://git.kernel.org/stable/c/63b1a3d9dd3b3f6d67f524e76270e66767090583 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/a4f12e5cbac2865c151d1e97e36eb24205afb23b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/41044d5360685e78a869d40a168491a70cdb7e73 (opens in a new tab)x_transferred
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-2024-24180 (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-2024-26918)Record last updated .