CVE-2023-53219

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-53219
In the Linux kernel, the following vulnerability has been resolved: media: netup_unidvb: fix use-after-free at del_timer() When Universal DVB card is detaching, netup_unidvb_dma_fini() uses del_timer() to stop dma->timeout timer. But when timer handler netup_unidvb_dma_timeout() is running, del_timer() could not stop it. As a result, the use-after-free bug could happen. The process is shown below: (cleanup routine) | (timer routine) | mod_timer(&dev->tx_sim_timer, ..) netup_unidvb_finidev() | (wait a time) netup_unidvb_dma_fini() | netup_unidvb_dma_timeout() del_timer(&dma->timeout); | | ndev->pci_dev->dev //USE Fix by changing del_timer() to del_timer_sync().

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3 Patch
https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e Patch
https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63 Patch
https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523 Patch
https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d Patch
https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc Patch
https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154 Patch
https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:*
History

03 Dec 2025, 15:32

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3 - () https://git.kernel.org/stable/c/051af3f0b7d1cd8ab7f3e2523ad8ae1af44caba3 - Patch
References () https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e - () https://git.kernel.org/stable/c/07821524f67bf920342bc84ae8b3dea2a315a89e - Patch
References () https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63 - () https://git.kernel.org/stable/c/0f5bb36bf9b39a2a96e730bf4455095b50713f63 - Patch
References () https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523 - () https://git.kernel.org/stable/c/1550bcf2983ae1220cc8ab899a39a423fa7cb523 - Patch
References () https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d - () https://git.kernel.org/stable/c/90229e9ee957d4514425e4a4d82c50ab5d57ac4d - Patch
References () https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc - () https://git.kernel.org/stable/c/c8f9c05e1ebcc9c7bc211cc8b74d8fb86a8756fc - Patch
References () https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154 - () https://git.kernel.org/stable/c/dd5c77814f290b353917df329f36de1472d47154 - Patch
References () https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942 - () https://git.kernel.org/stable/c/f9982db735a8495eee14267cf193c806b957e942 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CWE CWE-416
First Time Linux
Linux linux Kernel
Information

Published : 2025-09-15 15:15

Updated : 2025-12-03 15:32

NVD link : CVE-2023-53219

Mitre link : CVE-2023-53219

CVE.ORG link : CVE-2023-53219

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free