{"id":"CVE-2026-72187","summary":"ntfs: avoid self-deadlock during inode eviction","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: avoid self-deadlock during inode eviction\n\nAn attribute-list update performed while allocating clusters can drop the\nlast reference to the temporary attribute inode. Evicting that inode\ndrops its reference to the base inode and can invoke ntfs_drop_big_inode()\nfor the base inode from within the base inode's own writeback path.\n\nIf the base inode is unlinked, ntfs_drop_big_inode() calls\ntruncate_setsize(), which waits for the inode's folio writeback to\ncomplete. The same writeback worker is responsible for completing that\nwriteback, so it waits for itself indefinitely.\n\nPrevent this self-deadlock by grabbing a reference to the base inode at the\nbeginning of ntfs_writepages() and releasing it at the end of the function.\nThis defers eviction until all bios have been submitted, allowing the wait\nfor folio writeback to complete safely.","modified":"2026-08-16T03:48:33.885916161Z","published":"2026-08-15T05:53:48.866Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72187.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/5a5f877c5df7605e9bae524a25ec0df9b9cb8ea8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/77dc384207d5fa63ba97c3bf3285fe1215a1cbf6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72187.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72187"},{"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":"b041ca562526b3c4a71b41b80ba5e520eac636ad"},{"fixed":"5a5f877c5df7605e9bae524a25ec0df9b9cb8ea8"},{"fixed":"77dc384207d5fa63ba97c3bf3285fe1215a1cbf6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72187.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72187.json"}}],"schema_version":"1.9.0"}