Cloudanix VulnDB

CVE-2025-40067

None

CVSS

—

EPSS

0.2%

Published

Oct 28, 2025

CISA due date

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The record

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 packages

Ecosystem Package Introduced Fixed
Linux Kernel 0 6.6.112
Mageia:9 kernel 0 6.6.116-1.mga9
Mageia:9 kernel-linus 0 6.6.116-1.mga9
Mageia:9 kmod-virtualbox 0 7.1.14-13.mga9
Mageia:9 kmod-xtables-addons 0 3.24-87.mga9
openSUSE:Tumbleweed kernel-source 0 6.17.7-1.1
openSUSE:Tumbleweed kernel-source-longterm 0 6.18.16-1.1

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