{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:13",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:14",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.1.9-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  xfs: handle NULL b_addr in xfs_buf_free  When xfs_buf_alloc_backing_mem() fails, xfs_buf_free() is called with bp-\u003eb_addr still NULL.  The code falls through to the folio_put path which calls virt_to_folio(NULL), dereferencing an invalid address and causing a kernel crash.   Call Trace:   xfs_buf_free+0x25f/0x510   xfs_buf_alloc+0xc98/0x19b0   xfs_buf_find_insert+0x55/0x14d0   xfs_buf_get_map+0x122b/0x17c0   xfbtree_init_leaf_block+0x11c/0x4a0   xfbtree_init+0x1bb/0x460   xrep_rmap_setup_scan+0x100/0x1f0   xrep_rmapbt+0x41/0xc0  Fix this by skipping folio_put() when bp-\u003eb_addr is NULL.",
  "id": "DEBIAN-CVE-2026-74728",
  "modified": "2026-09-14T16:47:47.415488094Z",
  "published": "2026-08-22T16:16:47.930Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-74728"
    }
  ],
  "upstream": [
    "CVE-2026-74728"
  ]
}