CVE-2025-40067
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
41/100
Published: 2025-10-28
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Auth
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: reject index allocation if $BITMAP is empty but blocks exist Index allocation requires at least one bit in the $BITMAP attribute to track usage of index entries. If the bitmap is empty while index blocks are already present, this reflects on-disk corruption. syzbot triggered this condition using a malformed NTFS image. During a rename() operation involving a long filename (which spans multiple index entries), the empty bitmap allowed the name to be added without valid tracking. Subsequent deletion of the original entry failed with -ENOENT, due to unexpected index state. Reject such cases by verifying that the bitmap is not empty when index blocks exist.
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 47856e10f8d5e066aa26b1f9c02d933fe0620399 < aab2e34b139f6df71ab2b1adeec9927c206adc79 |
| Linux | Linux | b35a50d639ca5259466ef5fea85529bb4fb17d5b < 978aac54e93ea35aab20b32ae393d3d33964e7ae |
| Linux | Linux | 3ed2cc6a6e93fbeb8c0cafce1e7fb1f64a331dcc < be66551da203862c689c12e1d35ce87217c017c1 |
| Linux | Linux | d99208b91933fd2a58ed9ed321af07dacd06ddc3 < 039ddf353cc33f6546a87ec1ac3210637d714bec |
| Linux | Linux | d99208b91933fd2a58ed9ed321af07dacd06ddc3 < 0dc7117da8f92dd5fe077d712a756eccbe377d40 |
| Linux | Linux | 358d4f821c03add421a4c49290538a705852ccf1 |
| Linux | Linux | a285395020780adac1ffbc844069c3d700bf007a |
| Linux | Linux | 6.6.102 < 6.6.112 |
| Linux | Linux | 6.12.42 < 6.12.53 |
| Linux | Linux | 6.15.10 < 6.16 |
| Linux | Linux | 6.16.1 < 6.17 |
| Linux | Linux | 6.17 |