273 lines
14 KiB
JSON
273 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-68369",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-12-16T14:48:05.309Z",
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"datePublished": "2025-12-24T10:32:55.440Z",
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"dateUpdated": "2026-08-05T12:11:05.018Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:11:05.018Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nntfs3: init run lock for extend inode\n\nAfter setting the inode mode of $Extend to a regular file, executing the\ntruncate system call will enter the do_truncate() routine, causing the\nrun_lock uninitialized error reported by syzbot.\n\nPrior to patch 4e8011ffec79, if the inode mode of $Extend was not set to\na regular file, the do_truncate() routine would not be entered.\n\nAdd the run_lock initialization when loading $Extend.\n\nsyzbot reported:\nINFO: trying to register non-static key.\nCall Trace:\n dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120\n assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984\n register_lock_class+0x105/0x320 kernel/locking/lockdep.c:1299\n __lock_acquire+0x99/0xd20 kernel/locking/lockdep.c:5112\n lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5868\n down_write+0x96/0x1f0 kernel/locking/rwsem.c:1590\n ntfs_set_size+0x140/0x200 fs/ntfs3/inode.c:860\n ntfs_extend+0x1d9/0x970 fs/ntfs3/file.c:387\n ntfs_setattr+0x2e8/0xbe0 fs/ntfs3/file.c:808"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - ntfs3 supports NFS export, allowing an RW-exported volume to be reached through NFS LOOKUP and SETATTR. The RPC path reaches nfsd_setattr(), notify_change(), ntfs_setattr(), and ntfs_set_size() without opening the metadata file.\nAC:L - Standard NTFS volumes contain affected $Extend children, and a size-increasing SETATTR directly reaches the bad lock. On PREEMPT_RT the zeroed rwsem deterministically blocks; no race or malformed filesystem is required.\nPR:N - A writable anonymous NFS export can map RPC_AUTH_NULL to the NTFS mount UID, after which nfsd's owner override permits ATTR_SIZE despite mode 000. The remote caller needs no target account or capability.\nUI:N - Once the NTFS volume is mounted and exported, the attacker triggers the flaw directly with network requests; no victim action is required.\nS:U - The flaw compromises availability within the kernel and its NFS service without crossing a VM, IOMMU, or separate security-authority boundary.\nC:N - ntfs_alloc_inode() zeroes the relevant union, so no uninitialized contents are disclosed. The missing initialization creates an invalid synchronization object but no memory-read primitive.\nI:N - There is no use-after-free, out-of-bounds access, type confusion, or attacker-controlled write. The RT path blocks before attr_set_size(), while affected metadata records lack the unnamed data attribute needed for a successful size change.\nA:H - On PREEMPT_RT, a valid rwsem requires READER_BIAS, but the zeroed lock causes down_write() to wait indefinitely after subtracting that bias. Repeated SETATTR requests can occupy the remaining nfsd threads behind the held inode lock, causing complete NFS-service loss."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ntfs3/inode.c"
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],
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"versions": [
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{
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"version": "63eb6730ce0604d3eacf036c2f68ea70b068317c",
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"lessThan": "79c8a77b1782e2ace96d063be3c41ba540d1e20a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "78d46f5276ed3589aaaa435580068c5b62efc921",
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"lessThan": "433d1f7c628c3cbdd7efce064d6c7acd072cf6c4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "17249b2a65274f73ed68bcd1604e08a60fd8a278",
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"lessThan": "907bf69c6b6ce5d038eec7a599d67b45b62624bc",
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"status": "affected",
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},
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{
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"version": "37f65e68ba9852dc51c78dbb54a9881c3f0fe4f7",
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"lessThan": "6e17555728bc469d484c59db4a0abc65c19bc315",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "57534db1bbc4ca772393bb7d92e69d5e7b9051cf",
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"lessThan": "19164d8228317f3f1fe2662a9ba587cfe3b2d29e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e8011ffec79717e5fdac43a7e79faf811a384b7",
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"lessThan": "ab5e8ebeee1caa4fcf8be7d8d62c0a7165469076",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4e8011ffec79717e5fdac43a7e79faf811a384b7",
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"lessThan": "be99c62ac7e7af514e4b13f83c891a3cccefaa48",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "5.15.197",
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"lessThan": "5.15.198",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.1.159",
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"lessThan": "6.1.160",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.6.117",
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"lessThan": "6.6.120",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.12.58",
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"lessThan": "6.12.63",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.17.8",
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"lessThan": "6.17.13",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/ntfs3/inode.c"
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],
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"versions": [
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{
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"version": "6.18",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.18",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.198",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.160",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.120",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.63",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.17.13",
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"lessThanOrEqual": "6.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.2",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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"versionStartIncluding": "5.15.197",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/79c8a77b1782e2ace96d063be3c41ba540d1e20a"
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},
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{
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{
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"url": "https://git.kernel.org/stable/c/907bf69c6b6ce5d038eec7a599d67b45b62624bc"
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},
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{
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"url": "https://git.kernel.org/stable/c/6e17555728bc469d484c59db4a0abc65c19bc315"
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},
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{
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"url": "https://git.kernel.org/stable/c/19164d8228317f3f1fe2662a9ba587cfe3b2d29e"
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},
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{
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"url": "https://git.kernel.org/stable/c/ab5e8ebeee1caa4fcf8be7d8d62c0a7165469076"
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},
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{
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"url": "https://git.kernel.org/stable/c/be99c62ac7e7af514e4b13f83c891a3cccefaa48"
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}
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],
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"title": "ntfs3: init run lock for extend inode",
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