{"cve":"CVE-2023-54077","nvd":{"published":"2025-12-24T13:16:09.543","modified":"2026-08-04T10:19:27.853","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix memory leak if ntfs_read_mft failed\n\nLabel ATTR_ROOT in ntfs_read_mft() sets is_root = true and\nni->ni_flags |= NI_FLAG_DIR, then next attr will goto label ATTR_ALLOC\nand alloc ni->dir.alloc_run. However two states are not always\nconsistent and can make memory leak.\n\n 1) attr_name in ATTR_ROOT does not fit the condition it will set\n is_root = true but NI_FLAG_DIR is not set.\n 2) next attr_name in ATTR_ALLOC fits the condition and alloc\n ni->dir.alloc_run\n 3) in cleanup function ni_clear(), when NI_FLAG_DIR is set, it frees\n ni->dir.alloc_run, otherwise it frees ni->file.run\n 4) because NI_FLAG_DIR is not set in this case, ni->dir.alloc_run is\n leaked as kmemleak reported:\n\nunreferenced object 0xffff888003bc5480 (size 64):\n  backtrace:\n    [<000000003d42e6b0>] __kmalloc_node+0x4e/0x1c0\n    [<00000000d8e19b8a>] kvmalloc_node+0x39/0x1f0\n    [<00000000fc3eb5b8>] run_add_entry+0x18a/0xa40 [ntfs3]\n    [<0000000011c9f978>] run_unpack+0x75d/0x8e0 [ntfs3]\n    [<00000000e7cf1819>] run_unpack_ex+0xbc/0x500 [ntfs3]\n    [<00000000bbf0a43d>] ntfs_iget5+0xb25/0x2dd0 [ntfs3]\n    [<00000000a6e50693>] ntfs_fill_super+0x218d/0x3580 [ntfs3]\n    [<00000000b9170608>] get_tree_bdev+0x3fb/0x710\n    [<000000004833798a>] vfs_get_tree+0x8e/0x280\n    [<000000006e20b8e6>] path_mount+0xf3c/0x1930\n    [<000000007bf15a5f>] do_mount+0xf3/0x110\n    ...\n\nFix this by always setting is_root and NI_FLAG_DIR together.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/1bc6bb657dfb0ab3b94ef6d477ca241bf7b6ec06","https://git.kernel.org/stable/c/3030f2b9b3329db3948c1a145a5493ca6f617d50","https://git.kernel.org/stable/c/3bb0d3eb475f01744ce6d6e998dfbd80220852a1","https://git.kernel.org/stable/c/93bf79f989688852deade1550fb478b0a4d8daa8","https://git.kernel.org/stable/c/bfa434c60157c9793e9b12c9b68ade02aff9f803"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54077","score":0.00178,"percentile":0.0736,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}