{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72477","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-09T03:40:39.934Z","datePublished":"2026-08-15T05:57:17.035Z","dateUpdated":"2026-08-17T05:44:41.716Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T05:44:41.716Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: call _ntfs_bad_inode() when failing to rename\n\nIt is safe to call _ntfs_bad_inode on live inodes since:\n  commit 519b078998ce (\"fs/ntfs3: Exclude call make_bad_inode for live nodes.\")\n\nThe WARN_ON was added when it wasn't safe by:\n  commit d99208b91933 (\"fs/ntfs3: cancle set bad inode after removing name fails\")\n\nReplace the WARN_ON with a call to _ntfs_bad_inode() to prevent further\noperations on the inconsistent inode."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"},"scenarios":[{"lang":"en","value":"AV:N - ntfs3 registers export_operations and rename on an NFS- or SMB-exported NTFS volume reaches ni_rename() through nfsd/ksmbd vfs_rename without any local syscall; hybrid NAS and Windows/Linux file-server deployments are a reasonable high-impact reach path for this VFS rename flaw.\nAC:L - An attacker controls the on-disk NTFS layout and rename arguments so ni_add_name succeeds and both ni_remove_name steps fail deterministically; syzkaller reproduces this with a crafted loop image and no races or victim-specific timing outside attacker influence.\nPR:N - Exploitation needs only permission to rename on an exported NTFS share (including guest/anonymous NFS or SMB write access) or to supply removable media later mounted by the host; no init-namespace root, CAP_SYS_ADMIN, or other elevated host credentials are required.\nUI:N - Once an administrator has mounted and exported the NTFS volume (or automounted dual-boot/shared storage), the attacker triggers the flawed rename directly; no further victim clicks, file opens, or cooperative actions are needed beyond that standing configuration.\nS:U - Impact is kernel heap/metadata corruption and denial of service within the same kernel security authority; this is standard local or network filesystem exploitation, not a VM escape, IOMMU bypass, or cross-scope sandbox breakout.\nC:H - Leaving the inode operable after a failed rename rollback preserves inconsistent MFT/directory index state; subsequent lookups and index walks parse attacker-influenced corrupt metadata, matching ntfs3 guidance to score metadata corruption that can yield kernel memory disclosure as High.\nI:H - Without ni_bad set, further writes, unlinks, and renames continue against mismatched $FILE_NAME and $I30 state, propagating attacker-steerable directory/MFT corruption and heap metadata damage that can be leveraged for arbitrary kernel writes or control-flow hijack.\nA:H - The vulnerable path emits WARN_ON in ni_rename (kernel panic on panic_on_warn) and syzbot also hit a kernel paging fault in folio_wait_bit_common after follow-on operations on the inconsistent inode; any kernel oops, hang, or panic from continued use scores Availability High."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ntfs3/frecord.c"],"versions":[{"version":"519b078998ce6e729f98dccf35505b4756985d11","lessThan":"ff825bf0521f6da2f30878cbad18ab7b341bc31b","status":"affected","versionType":"git"},{"version":"519b078998ce6e729f98dccf35505b4756985d11","lessThan":"e8ed78f40eecd0176fda71d673f6957c98e7ffbe","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ntfs3/frecord.c"],"versions":[{"version":"6.17","status":"affected"},{"version":"0","lessThan":"6.17","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ff825bf0521f6da2f30878cbad18ab7b341bc31b"},{"url":"https://git.kernel.org/stable/c/e8ed78f40eecd0176fda71d673f6957c98e7ffbe"}],"title":"fs/ntfs3: call _ntfs_bad_inode() when failing to rename","x_generator":{"engine":"bippy-1.2.0"}}}}