{
  "affected": [
    {
      "ecosystem_specific": {
        "urgency": "not yet assigned"
      },
      "package": {
        "ecosystem": "Debian:12",
        "name": "linux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "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"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "In the Linux kernel, the following vulnerability has been resolved:  smb/client: validate new EOF for zero range  When FALLOC_FL_ZERO_RANGE is used without FALLOC_FL_KEEP_SIZE, smb3_zero_range() may extend EOF without checking RLIMIT_FSIZE, allowing the file to grow beyond the caller's file-size limit.  Fix this by calling inode_newsize_ok() before sending the zero-range request when the operation would extend EOF.  Reproducer, using a file on a CIFS mount:  \tbash -c ' \t        FILE=/mnt/cifs/repro  \t        trap \"\" SIGXFSZ \t        ulimit -f 3072  \t        truncate -s 2M \"$FILE\" \t        fallocate --zero-range -o 0 -l 4M \"$FILE\" \t        echo \"fallocate rc=$?\" \t        stat -c \"file size=%s\" \"$FILE\" \t'  Before this change, the operation succeeds despite the 3 MiB limit:  \tfallocate rc=0 \tfile size=4194304  After this change, fallocate fails and leaves the file at 2 MiB.",
  "id": "DEBIAN-CVE-2026-98126",
  "modified": "2026-09-26T04:47:40.523625715Z",
  "published": "2026-09-25T11:17:43.940Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://security-tracker.debian.org/tracker/CVE-2026-98126"
    }
  ],
  "upstream": [
    "CVE-2026-98126"
  ]
}