{"apiVersion":"1.0","identifier":"CVE-2026-72471","description":"In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent potential lcn remains uninitialized The target VCN being sought was not found within runs[0], causing run_lookup() to return false. This causes run_lookup_entry() to return false, which in turn results in a len value of 0, and the new parameter passed to attr_data_get_block() is NULL. Collectively, these factors ultimately cause attr_data_get_block_locked() to exit prematurely without initializing lcn, thereby triggering [1]. To prevent [1], the clen check within ni_seek_data_or_hole() has been moved to occur before the lcn check. [1] BUG: KMSAN: uninit-value in ni_seek_data_or_hole+0x24f/0x5f0 fs/ntfs3/frecord.c:2862 ni_seek_data_or_hole+0x24f/0x5f0 fs/ntfs3/frecord.c:2862 ntfs_llseek+0x22a/0x4a0 fs/ntfs3/file.c:1530 vfs_llseek fs/read_write.c:391 [inline]","publishedAt":"2026-08-15T06:22:21","lastModifiedAt":"2026-08-17T06:19:15","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-72471","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","epssProbability":0.00315,"riskScore":0.73,"affectedProduct":"linux","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-72471","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-72471","en":"https://www.redsauce.net/en/cves/CVE-2026-72471","fr":"https://www.redsauce.net/fr/cves/CVE-2026-72471","pt":"https://www.redsauce.net/pt/cves/CVE-2026-72471","de":"https://www.redsauce.net/de/cves/CVE-2026-72471","sk":"https://www.redsauce.net/sk/cves/CVE-2026-72471","el":"https://www.redsauce.net/el/cves/CVE-2026-72471"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-72471"}}