CVE-2026-43245
ntfs: ->d_compare() must not block
CVSS Score
7.5
EPSS Score
0.1%
EPSS Percentile
16th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
| Last Updated | May 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
a3a956c78efaa202b1d75190136671cf6e87bfbe < 02ecc0978c459fd90bb24b2a946dd16d43e68fe5 a3a956c78efaa202b1d75190136671cf6e87bfbe < 1be7ca86ce1794d966fda5d82181bc978b150fbc a3a956c78efaa202b1d75190136671cf6e87bfbe < 142c444a395f4d26055c8a4473e228bb86283f1e a3a956c78efaa202b1d75190136671cf6e87bfbe < fb4b1f969ba01fa1d4088467a02fc1e5f0806710 a3a956c78efaa202b1d75190136671cf6e87bfbe < ca2a04e84af79596e5cd9cfe697d5122ec39c8ce
Linux / Linux
6.2
References
git.kernel.org: https://git.kernel.org/stable/c/02ecc0978c459fd90bb24b2a946dd16d43e68fe5 git.kernel.org: https://git.kernel.org/stable/c/1be7ca86ce1794d966fda5d82181bc978b150fbc git.kernel.org: https://git.kernel.org/stable/c/142c444a395f4d26055c8a4473e228bb86283f1e git.kernel.org: https://git.kernel.org/stable/c/fb4b1f969ba01fa1d4088467a02fc1e5f0806710 git.kernel.org: https://git.kernel.org/stable/c/ca2a04e84af79596e5cd9cfe697d5122ec39c8ce