CVE-2026-93211: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 преди f060f43a67635dbb393bf5dcbfc3e8b9a44942cb; 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 преди b57bd8cb739cb3cf88bdb1a5903a42a707a5c282; 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 преди 431c70ca5163c98c746f22f16cd58ca5aefec6dc; 8eea99a81c6f67c08fedd7db2ccd09aa93db69a7 преди b0c58934f5cc4f05b63ef6605dd10c1d0d489e88
• Linux Linux: 6.7; преди 6.7; 6.12.109 до 6.12.*; 6.18.50 до 6.18.*; 7.2.4 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-93211
• https://nvd.nist.gov/vuln/detail/CVE-2026-93211
• 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