- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 93% 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: xen-netback: Fix XenBus connection failure cleanup xenvif_get_stats and xenvif_get_ethtool_stats capture vif->num_queues under rcu_read_lock. We need to unpublish vif->num_queues before synchronize_net to ensure that readers that come afterwards will not read a non-zero vif->num_queues and attempt to access invalid queues. This is the same cleanup algorithm as used in backend_disconnect and added in commit b17075d5c198 ("xen-netback: fix race condition on XenBus disconnect"). This is XSA-531
Timeline
ID reserved
By Linux
- 46 days later
· 46 days later
Published
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)
- 0.17% · top 93% 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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < ade3082dcdee17c5767069883936d64ff83f6c9f
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a97aa838903d15f865d80809f5198ff459c6634a
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 07aca7d25ce8578fedde49855983a01c537a782b
- affected < 6.12.117
- affected < 6.18.63
- affected < 7.3.4
- unaffected 6.12.117 – ≤ 6.12.*
- unaffected 6.18.63 – ≤ 6.18.*
- unaffected 7.3.4 – ≤ 7.3.*
References
References5
- https://git.kernel.org/stable/c/ade3082dcdee17c5767069883936d64ff83f6c9f (opens in a new tab)
- https://git.kernel.org/stable/c/a97aa838903d15f865d80809f5198ff459c6634a (opens in a new tab)
- https://git.kernel.org/stable/c/07aca7d25ce8578fedde49855983a01c537a782b (opens in a new tab)
- http://www.openwall.com/lists/oss-security/2026/11/10/25 (opens in a new tab)
- http://xenbits.xen.org/xsa/advisory-531.html (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-2026-121530 (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-2026-99286)Record last updated .