CVE-2026-43245

high

Description

In the Linux kernel, the following vulnerability has been resolved: ntfs: ->d_compare() must not block ... so don't use __getname() there. Switch it (and ntfs_d_hash(), while we are at it) to kmalloc(PATH_MAX, GFP_NOWAIT). Yes, ntfs_d_hash() almost certainly can do with smaller allocations, but let ntfs folks deal with that - keep the allocation size as-is for now. Stop abusing names_cachep in ntfs, period - various uses of that thing in there have nothing to do with pathnames; just use k[mz]alloc() and be done with that. For now let's keep sizes as-in, but AFAICS none of the users actually want PATH_MAX.

References

https://git.kernel.org/stable/c/fb4b1f969ba01fa1d4088467a02fc1e5f0806710

https://git.kernel.org/stable/c/ca2a04e84af79596e5cd9cfe697d5122ec39c8ce

https://git.kernel.org/stable/c/1be7ca86ce1794d966fda5d82181bc978b150fbc

https://git.kernel.org/stable/c/142c444a395f4d26055c8a4473e228bb86283f1e

https://git.kernel.org/stable/c/02ecc0978c459fd90bb24b2a946dd16d43e68fe5

Details

Source: Mitre, NVD

Published: 2026-05-06

Updated: 2026-05-11

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00017