Executive Summary

Informations
Name CVE-2022-49931 First vendor Publication 2025-05-01
Vendor Cve Last vendor Modification 2025-05-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

In the Linux kernel, the following vulnerability has been resolved:

IB/hfi1: Correctly move list in sc_disable()

Commit 13bac861952a ("IB/hfi1: Fix abba locking issue with sc_disable()") incorrectly tries to move a list from one list head to another. The result is a kernel crash.

The crash is triggered when a link goes down and there are waiters for a send to complete. The following signature is seen:

BUG: kernel NULL pointer dereference, address: 0000000000000030
[...]
Call Trace:
sc_disable+0x1ba/0x240 [hfi1]
pio_freeze+0x3d/0x60 [hfi1]
handle_freeze+0x27/0x1b0 [hfi1]
process_one_work+0x1b0/0x380
? process_one_work+0x380/0x380
worker_thread+0x30/0x360
? process_one_work+0x380/0x380
kthread+0xd7/0x100
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x1f/0x30

The fix is to use the correct call to move the list.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49931

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3562

Sources (Detail)

https://git.kernel.org/stable/c/1afac08b39d85437187bb2a92d89a741b1078f55
https://git.kernel.org/stable/c/25760a41e3802f54aadcc31385543665ab349b8e
https://git.kernel.org/stable/c/7c4260f8f188df32414a5ecad63e8b934c2aa3f0
https://git.kernel.org/stable/c/b8bcff99b07cc175a6ee12a52db51cdd2229586c
https://git.kernel.org/stable/c/ba95409d6b580501ff6d78efd00064f7df669926
Source Url

Alert History

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0
1
2
Date Informations
2025-06-24 02:15:09
  • Multiple Updates
2025-05-27 13:24:10
  • Multiple Updates
2025-05-27 02:13:29
  • First insertion