In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8712: fix a potential memory leak in r871xu_drv_init()
In r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory
allocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not
properly released as there is no action will be performed by
r8712_usb_dvobj_deinit().
To properly release it, we should call r8712_free_io_queue() in
r8712_usb_dvobj_deinit().
Besides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called
by r871x_dev_unload() under condition `padapter->bup` and
r8712_free_io_queue() is called by r8712_free_drv_sw().
However, r8712_usb_dvobj_deinit() does not rely on `padapter->bup` and
calling r8712_free_io_queue() in r8712_free_drv_sw() is negative for
better understading the code.
So I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove
r8712_free_io_queue() from r8712_free_drv_sw().
                
            Metrics
Affected Vendors & Products
References
        History
                    Wed, 01 Oct 2025 20:15:00 +0000
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| Metrics | ssvc 
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Thu, 08 May 2025 15:00:00 +0000
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| Metrics | threat_severity 
 | threat_severity 
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Mon, 21 Apr 2025 02:45:00 +0000
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| Metrics | threat_severity 
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Mon, 17 Mar 2025 20:15:00 +0000
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| First Time appeared | Linux Linux linux Kernel | |
| Weaknesses | CWE-401 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products | Linux Linux linux Kernel | 
Fri, 28 Feb 2025 01:30:00 +0000
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| References |  | |
| Metrics | threat_severity 
 | cvssV3_1 
 
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Wed, 26 Feb 2025 02:45:00 +0000
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| Description | In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix a potential memory leak in r871xu_drv_init() In r871xu_drv_init(), if r8712_init_drv_sw() fails, then the memory allocated by r8712_alloc_io_queue() in r8712_usb_dvobj_init() is not properly released as there is no action will be performed by r8712_usb_dvobj_deinit(). To properly release it, we should call r8712_free_io_queue() in r8712_usb_dvobj_deinit(). Besides, in r871xu_dev_remove(), r8712_usb_dvobj_deinit() will be called by r871x_dev_unload() under condition `padapter->bup` and r8712_free_io_queue() is called by r8712_free_drv_sw(). However, r8712_usb_dvobj_deinit() does not rely on `padapter->bup` and calling r8712_free_io_queue() in r8712_free_drv_sw() is negative for better understading the code. So I move r8712_usb_dvobj_deinit() into r871xu_dev_remove(), and remove r8712_free_io_queue() from r8712_free_drv_sw(). | |
| Title | staging: rtl8712: fix a potential memory leak in r871xu_drv_init() | |
| References |  | 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: Linux
Published: 2025-02-26T02:10:41.627Z
Updated: 2025-10-01T19:46:57.896Z
Reserved: 2025-02-26T02:08:31.536Z
Link: CVE-2022-49312
 Vulnrichment
                        Vulnrichment
                    Updated: 2025-10-01T16:14:15.914Z
 NVD
                        NVD
                    Status : Modified
Published: 2025-02-26T07:01:07.997
Modified: 2025-10-01T20:16:05.137
Link: CVE-2022-49312
 Redhat
                        Redhat
                     ReportizFlow
ReportizFlow