Publish GHSA-7x5p-5275-mmvg

Author: advisory-database[bot]

advisories/unreviewed/2025/01/GHSA-7x5p-5275-mmvg/GHSA-7x5p-5275-mmvg.json

@@ -0,0 +1,33 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-7x5p-5275-mmvg",
+  "modified": "2025-01-11T18:30:33Z",
+  "published": "2025-01-11T18:30:33Z",
+  "aliases": [
+    "CVE-2024-57881"
+  ],
+  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_alloc: don't call pfn_to_page() on possibly non-existent PFN in split_large_buddy()\n\nIn split_large_buddy(), we might call pfn_to_page() on a PFN that might\nnot exist.  In corner cases, such as when freeing the highest pageblock in\nthe last memory section, this could result with CONFIG_SPARSEMEM &&\n!CONFIG_SPARSEMEM_EXTREME in __pfn_to_section() returning NULL and and\n__section_mem_map_addr() dereferencing that NULL pointer.\n\nLet's fix it, and avoid doing a pfn_to_page() call for the first\niteration, where we already have the page.\n\nSo far this was found by code inspection, but let's just CC stable as the\nfix is easy.",
+  "severity": [],
+  "affected": [],
+  "references": [
+    {
+      "type": "ADVISORY",
+      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57881"
+    },
+    {
+      "type": "WEB",
+      "url": "https://git.kernel.org/stable/c/4234ca9884bcae9e48ed38652d91696ad5cd591d"
+    },
+    {
+      "type": "WEB",
+      "url": "https://git.kernel.org/stable/c/faeec8e23c10bd30e8aa759a2eb3018dae00f924"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [],
+    "severity": null,
+    "github_reviewed": false,
+    "github_reviewed_at": null,
+    "nvd_published_at": "2025-01-11T16:15:24Z"
+  }
+}