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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49076 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix use-after-free bug for mm struct Under certain conditions, such as MPI_Abort, the hfi1 cleanup code may represent the last reference held on the task mm. hfi1_mmu_rb_unregister() then drops the last reference and the mm is freed before the final use in hfi1_release_user_pages(). A new task may allocate the mm structure while it is still being used, resulting in problems. One manifestation is corruption of the mmap_sem counter leading to a hang in down_write(). Another is corruption of an mm struct that is in use by another task.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/0b7186d657ee55e2cdefae498f07d5c1961e8023 Patch 
https://git.kernel.org/stable/c/2bbac98d0930e8161b1957dc0ec99de39ade1b3c Patch 
https://git.kernel.org/stable/c/5a9a1b24ddb510715f8f621263938186579a965c Patch 
https://git.kernel.org/stable/c/5f54364ff6cfcd14cddf5441c4a490bb28dd69f7 Patch 
https://git.kernel.org/stable/c/9ca11bd8222a612de0d2f54d050bfcf61ae2883f Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49076
NVD Published Date:
02/26/2025
NVD Last Modified:
03/24/2025
Source:
kernel.org