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CVE-2026-93211

nfsd: initialize DRC hash table before registering shrinker

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7
Version < f060f43a67635dbb393bf5dcbfc3e8b9a44942cb
Status affected
Version 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7
Version < b57bd8cb739cb3cf88bdb1a5903a42a707a5c282
Status affected
Version 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7
Version < 431c70ca5163c98c746f22f16cd58ca5aefec6dc
Status affected
Version 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7
Version < b0c58934f5cc4f05b63ef6605dd10c1d0d489e88
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 6.7
Status affected
Version 0
Version < 6.7
Status unaffected
Version <= 6.12.*
Version 6.12.109
Status unaffected
Version <= 6.18.*
Version 6.18.50
Status unaffected
Version <= 7.2.*
Version 7.2.4
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.054
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/f060f43a67635dbb393bf5dcbfc3e8b9a44942cb
https://git.kernel.org/stable/c/b57bd8cb739cb3cf88bdb1a5903a42a707a5c282
https://git.kernel.org/stable/c/431c70ca5163c98c746f22f16cd58ca5aefec6dc
https://git.kernel.org/stable/c/b0c58934f5cc4f05b63ef6605dd10c1d0d489e88