- —Not scoredno CVSS score yet
- 0.20%Exploitation in 30 daysEPSS · top 90% 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: cxl/mbox: Break poison list loop on an empty payload A device that returns count == 0 with CXL_POISON_FLAG_MORE set on every iteration never advances nr_records, so the max_errors guard never trips and the do/while loops forever while holding poison.mutex. That hangs the sysfs-triggered scan thread and blocks all subsequent poison operations on the device. The existing "Protect against an uncleared _FLAG_MORE" guard was intended to bound a misbehaving device but does not cover the count == 0 case. Stop the loop on an empty payload so a malfunctioning or malicious device cannot wedge the poison scan.
Timeline
ID reserved
By Linux
Published
- 32 days later
· 32 days 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)
- 0.20% · top 90% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected ed83f7ca398b3798b82c1d5d1113011c0e5a2198 – < 86771c105293ca26bfcc320b4f60d32c137b54aa
- affected ed83f7ca398b3798b82c1d5d1113011c0e5a2198 – < 42eab80981f4d2ac820e253e80ecf92f8cd91f69
- affected ed83f7ca398b3798b82c1d5d1113011c0e5a2198 – < 6ad491cef1a812cf7b53aa769cd8869516c47362
- affected ed83f7ca398b3798b82c1d5d1113011c0e5a2198 – < e77594e0cea67ab1c2317a27aa77a744e26ad6a6
- affected ed83f7ca398b3798b82c1d5d1113011c0e5a2198 – < 8b301c4afbce4bc3f94528441d8d5ce1366504ad
- affected 6.4
- unaffected < 6.4
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/86771c105293ca26bfcc320b4f60d32c137b54aa (opens in a new tab)
- https://git.kernel.org/stable/c/42eab80981f4d2ac820e253e80ecf92f8cd91f69 (opens in a new tab)
- https://git.kernel.org/stable/c/6ad491cef1a812cf7b53aa769cd8869516c47362 (opens in a new tab)
- https://git.kernel.org/stable/c/e77594e0cea67ab1c2317a27aa77a744e26ad6a6 (opens in a new tab)
- https://git.kernel.org/stable/c/8b301c4afbce4bc3f94528441d8d5ce1366504ad (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-2026-82205 (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-2026-93097)Record last updated .