CVE-2025-40179
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ext4: verify orphan file size is not too big
In the Linux kernel, the following vulnerability has been resolved: ext4: verify orphan file size is not too big In principle orphan file can be arbitrarily large. However orphan replay needs to traverse it all and we also pin all its buffers in memory. Thus filesystems with absurdly large orphan files can lead to big amounts of memory consumed. Limit orphan file size to a sane value and also use kvmalloc() for allocating array of block descriptor structures to avoid large order allocations for sane but large orphan files.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 95a21611b14ae0a401720645245a8db16f040995 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 566a1d6084563bd07433025aa23bcea4427de107 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 304fc34ff6fc8261138fd81f119e024ac3a129e9 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | a2d803fab8a6c6a874277cb80156dc114db91921 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 2b9da798ff0f4d026c5f0f815047393ebe7d8859 | Unavailable | None listed |
| 02f310fcf47fa9311d6ba2946a8d19e7d7d11f37 | affected | git | 0a6ce20c156442a4ce2a404747bb0fb05d54eeb3 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.15 | Unavailable | None listed |
| 5.15.195 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.157 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.113 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.54 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.4 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |