{"id":"CVE-2026-93211","published":"2026-09-24T16:17:16.007","lastModified":"2026-09-24T16:17:16.007","description":"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 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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/431c70ca5163c98c746f22f16cd58ca5aefec6dc","tags":[]},{"url":"https://git.kernel.org/stable/c/b0c58934f5cc4f05b63ef6605dd10c1d0d489e88","tags":[]},{"url":"https://git.kernel.org/stable/c/b57bd8cb739cb3cf88bdb1a5903a42a707a5c282","tags":[]},{"url":"https://git.kernel.org/stable/c/f060f43a67635dbb393bf5dcbfc3e8b9a44942cb","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}