CVE-2026-93211nfsd: initialize DRC hash table before registering shrinker
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% 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: nfsd: initialize DRC hash table before registering shrinker shrinker_register() precedes the INIT_LIST_HEAD loop and the drc_hashsize store. On weakly-ordered architectures (arm64, ppc), a shrinker scan can observe drc_hashsize before the bucket list heads are initialized, causing a NULL deref in the DRC shrinker callback. Move bucket initialization and the drc_hashsize store before shrinker_register() so the hash table is fully initialized before it becomes visible to the shrinker.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 25 days later
· 25 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)
- 0.17% · top 94% 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 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 – < f060f43a67635dbb393bf5dcbfc3e8b9a44942cb
- affected 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 – < b57bd8cb739cb3cf88bdb1a5903a42a707a5c282
- affected 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 – < 431c70ca5163c98c746f22f16cd58ca5aefec6dc
- affected 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 – < b0c58934f5cc4f05b63ef6605dd10c1d0d489e88
- affected 6.7
- unaffected < 6.7
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/f060f43a67635dbb393bf5dcbfc3e8b9a44942cb (opens in a new tab)
- https://git.kernel.org/stable/c/b57bd8cb739cb3cf88bdb1a5903a42a707a5c282 (opens in a new tab)
- https://git.kernel.org/stable/c/431c70ca5163c98c746f22f16cd58ca5aefec6dc (opens in a new tab)
- https://git.kernel.org/stable/c/b0c58934f5cc4f05b63ef6605dd10c1d0d489e88 (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-2026-85940 (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-2026-93211)Record last updated .