{"id":"CVE-2026-93211","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: initialize DRC hash table before registering shrinker\n\nshrinker_register() precedes the INIT_LIST_HEAD loop and the\ndrc_hashsize store","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: initialize DRC hash table before registering shrinker\n\nshrinker_register() precedes the INIT_LIST_HEAD loop and the\ndrc_hashsize store. On weakly-ordered architec…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 < f060f43a67635dbb393bf5dcbfc3e8b9a44942cb","Linux >= 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 < b57bd8cb739cb3cf88bdb1a5903a42a707a5c282","Linux >= 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 < 431c70ca5163c98c746f22f16cd58ca5aefec6dc","Linux >= 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 < b0c58934f5cc4f05b63ef6605dd10c1d0d489e88","Linux 6.7"],"published":"2026-09-24","updated":"2026-09-24","sourceUpdated":"2026-09-24T16:17:16.007","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-93211","references":[{"url":"https://git.kernel.org/stable/c/431c70ca5163c98c746f22f16cd58ca5aefec6dc","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b0c58934f5cc4f05b63ef6605dd10c1d0d489e88","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b57bd8cb739cb3cf88bdb1a5903a42a707a5c282","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f060f43a67635dbb393bf5dcbfc3e8b9a44942cb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-24T15:45:56.671Z","slug":"CVE-2026-93211","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: initialize DRC hash table before registering shrinker\n\nshrinker_register() precedes the INIT_LIST_HEAD loop and the\ndrc_hashsize store. On weakly-ordered architectures (arm64, ppc),\na shrinker scan can observe drc_hashsize before the bucket list\nheads are initialized, causing a NULL deref in the DRC shrinker\ncallback.\n\nMove bucket initialization and the drc_hashsize store before\nshrinker_register() so the hash table is fully initialized before\nit becomes visible to the shrinker.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}