{"id":"CVE-2026-46072","summary":"ntfs3: add buffer boundary checks to run_unpack()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs3: add buffer boundary checks to run_unpack()\n\nrun_unpack() checks `run_buf \u003c run_last` at the top of the while loop\nbut then reads size_size and offset_size bytes via run_unpack_s64()\nwithout verifying they fit within the remaining buffer.  A crafted NTFS\nimage with truncated run data in an MFT attribute triggers an OOB heap\nread of up to 15 bytes when the filesystem is mounted.\n\nAdd boundary checks before each run_unpack_s64() call to ensure the\ndeclared field size does not exceed the remaining buffer.\n\nFound by fuzzing with a source-patched harness (LibAFL + QEMU).","modified":"2026-06-26T11:56:56.091217019Z","published":"2026-05-27T12:58:00.299Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46072.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/41aadf5cb482793a24e05aa136224e179a778586"},{"type":"WEB","url":"https://git.kernel.org/stable/c/425de2aba0d061b3e715d51a3b1992c112ed5b99"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b62567bca47408e6739dee75f02a2113548af875"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bbad75336870b51b81979b97613746237fcb02fe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bf7ac4a1d3bfc6e56e54635c3d331a68170d37c9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3012690a7065d9ca86521a525ad11e8af491d45"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e64f7dfcaff79e7dfff9121a382dd77f9b462f62"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46072.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46072"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"82cae269cfa953032fbb8980a7d554d60fb00b17"},{"fixed":"bbad75336870b51b81979b97613746237fcb02fe"},{"fixed":"425de2aba0d061b3e715d51a3b1992c112ed5b99"},{"fixed":"bf7ac4a1d3bfc6e56e54635c3d331a68170d37c9"},{"fixed":"e64f7dfcaff79e7dfff9121a382dd77f9b462f62"},{"fixed":"d3012690a7065d9ca86521a525ad11e8af491d45"},{"fixed":"41aadf5cb482793a24e05aa136224e179a778586"},{"fixed":"b62567bca47408e6739dee75f02a2113548af875"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46072.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.15.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.86"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.27"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46072.json"}}],"schema_version":"1.7.5"}