CVE-2026-46100
HIGH EPSS 2.7%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: fs: afs: revert mmap_prepare() change Partially reverts commit 9d5403b1036c ("fs: convert most other generic_file_*mmap() users to .mmap_prepare()"). This is because the .mmap invocation establishes a refcount, but .mmap_prepare is called at a point where a merge or an allocation failure might happen after the call, which would leak the refcount increment. Functionality is being added to permit the use of .mmap_prepare in this case, but in the interim, we need to fix this.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
References 3
- git.kernel.org https://git.kernel.org/stable/c/48c7a0eaeea41da17d1d84d2d7a4c40be122b246
- git.kernel.org https://git.kernel.org/stable/c/f51f85c044809fbd39ac8ae07ac99bc43ce32bd5
- git.kernel.org https://git.kernel.org/stable/c/fbfc6578eaca12daa0c09df1e9ba7f2c657b49da
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.