{"id":"CVE-2026-72194","revision":"4657a9f996a44c8f8d829aa67df8ad04","records":[{"revision":"4657a9f996a44c8f8d829aa67df8ad04","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72194","aliases":[],"title":"fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow\n\nindx_find_buffer() recursively descends the B+ tree index with no depth\nlimit.  A crafted NTFS image with circular index node references causes\nunbounded recursion, overflowing the kernel stack and panicking the\nsystem.\n\nThis is reachable by mounting a malicious NTFS filesystem (e.g. from a\nUSB drive via desktop automount) and deleting a file whose index entry\ntriggers the rebalancing fallback path in indx_delete_entry().\n\nAdd a depth parameter and bail out with -EINVAL when it reaches the\nfnd->nodes array bound, matching the constraint already enforced by\nfnd_push() in indx_find().\n\nThe related function indx_find() was previously patched for a similar\ninfinite-loop issue (commit 1732053c8a6b), but indx_find_buffer() was\nmissed.","state":0,"publishedAt":"2026-08-15T05:53:54.125+00:00","modifiedAt":"2026-10-16T18:45:01.099+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/ntfs3/index.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"99031d4f63c785d2a985b6a4c64c4256f7117052\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"65357a81f64cb3fbe13b4b937586755e4b3a072f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"96fb64f9da86fd2dbd78fbe9d9e41ae27e12ce34\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"78612f478f9fadcec4f9b3b089970da67ffb47e9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"908c9243ba309997b73cbda3e4c563d0fb345ee9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"fdf50c788e0991e42a187ff75479a0df7fb752f1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"82cae269cfa953032fbb8980a7d554d60fb00b17\",\n                            \"lessThan\": \"1ebd684b8f627f75bc3e03f8b2ad8400fd1f02cd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/ntfs3/index.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/99031d4f63c785d2a985b6a4c64c4256f7117052","https://git.kernel.org/stable/c/65357a81f64cb3fbe13b4b937586755e4b3a072f","https://git.kernel.org/stable/c/96fb64f9da86fd2dbd78fbe9d9e41ae27e12ce34","https://git.kernel.org/stable/c/78612f478f9fadcec4f9b3b089970da67ffb47e9","https://git.kernel.org/stable/c/908c9243ba309997b73cbda3e4c563d0fb345ee9","https://git.kernel.org/stable/c/fdf50c788e0991e42a187ff75479a0df7fb752f1","https://git.kernel.org/stable/c/1ebd684b8f627f75bc3e03f8b2ad8400fd1f02cd"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72194","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72194","identifiers":["CVE-2026-72194"]},"retained":false,"historicalAffected":[]}],"coverage":[]}