Executive Summary

Informations
Name CVE-2024-56621 First vendor Publication 2024-12-27
Vendor Cve Last vendor Modification 2025-01-08

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:

scsi: ufs: core: Cancel RTC work during ufshcd_remove()

Currently, RTC work is only cancelled during __ufshcd_wl_suspend(). When ufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to this, any further trigger of the RTC work after ufshcd_remove() would result in a NULL pointer dereference as below:

Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a4 Workqueue: events ufshcd_rtc_work Call trace:
_raw_spin_lock_irqsave+0x34/0x8c
pm_runtime_get_if_active+0x24/0xb4
ufshcd_rtc_work+0x124/0x19c
process_scheduled_works+0x18c/0x2d8
worker_thread+0x144/0x280
kthread+0x11c/0x128
ret_from_fork+0x10/0x20

Since RTC work accesses the ufshcd internal structures, it should be cancelled when ufshcd is removed. So do that in ufshcd_remove(), as per the order in ufshcd_init().

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56621

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3668

Sources (Detail)

https://git.kernel.org/stable/c/1695c4361d35b7bdadd7b34f99c9c07741e181e5
https://git.kernel.org/stable/c/2e7a3bb0331efb292e0fb022c36bc592137f0520
Source Url

Alert History

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0
1
Date Informations
2025-01-08 21:20:43
  • Multiple Updates
2024-12-27 21:20:28
  • First insertion