CVE-2024-53213

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-53213
In the Linux kernel, the following vulnerability has been resolved: net: usb: lan78xx: Fix double free issue with interrupt buffer allocation In lan78xx_probe(), the buffer `buf` was being freed twice: once implicitly through `usb_free_urb(dev->urb_intr)` with the `URB_FREE_BUFFER` flag and again explicitly by `kfree(buf)`. This caused a double free issue. To resolve this, reordered `kmalloc()` and `usb_alloc_urb()` calls to simplify the initialization sequence and removed the redundant `kfree(buf)`. Now, `buf` is allocated after `usb_alloc_urb()`, ensuring it is correctly managed by `usb_fill_int_urb()` and freed by `usb_free_urb()` as intended.

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/03819abbeb11117dcbba40bfe322b88c0c88a6b6 Patch
https://git.kernel.org/stable/c/7ac9f3c981eeceee2ec4d30d850f4a6f50a1ec40 Patch
https://git.kernel.org/stable/c/977128343fc2a30737399b58df8ea77e94f164bd Patch
https://git.kernel.org/stable/c/a422ebec863d99d5607fb41bb7af3347fcb436d3 Patch
https://git.kernel.org/stable/c/b09512aea6223eec756f52aa584fc29eeab57480 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:*:*:*:*:*:*:*:*
History

10 Jan 2025, 18:04

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/03819abbeb11117dcbba40bfe322b88c0c88a6b6 - () https://git.kernel.org/stable/c/03819abbeb11117dcbba40bfe322b88c0c88a6b6 - Patch
References () https://git.kernel.org/stable/c/7ac9f3c981eeceee2ec4d30d850f4a6f50a1ec40 - () https://git.kernel.org/stable/c/7ac9f3c981eeceee2ec4d30d850f4a6f50a1ec40 - Patch
References () https://git.kernel.org/stable/c/977128343fc2a30737399b58df8ea77e94f164bd - () https://git.kernel.org/stable/c/977128343fc2a30737399b58df8ea77e94f164bd - Patch
References () https://git.kernel.org/stable/c/a422ebec863d99d5607fb41bb7af3347fcb436d3 - () https://git.kernel.org/stable/c/a422ebec863d99d5607fb41bb7af3347fcb436d3 - Patch
References () https://git.kernel.org/stable/c/b09512aea6223eec756f52aa584fc29eeab57480 - () https://git.kernel.org/stable/c/b09512aea6223eec756f52aa584fc29eeab57480 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: usb: lan78xx: Se soluciona el problema de doble liberación con la asignación de búfer de interrupción En lan78xx_probe(), el búfer `buf` se liberaba dos veces: una vez implícitamente a través de `usb_free_urb(dev->urb_intr)` con el indicador `URB_FREE_BUFFER` y otra vez explícitamente por `kfree(buf)`. Esto causaba un problema de doble liberación. Para resolver esto, reordenamos las llamadas `kmalloc()` y `usb_alloc_urb()` para simplificar la secuencia de inicialización y eliminamos el `kfree(buf)` redundante. Ahora, `buf` se asigna después de `usb_alloc_urb()`, lo que garantiza que `usb_fill_int_urb()` lo administre correctamente y que `usb_free_urb()` lo libere como estaba previsto.
First Time Linux
Linux linux Kernel
CWE CWE-415
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

27 Dec 2024, 14:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-27 14:15

Updated : 2025-01-10 18:04

NVD link : CVE-2024-53213

Mitre link : CVE-2024-53213

CVE.ORG link : CVE-2024-53213

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-415

Double Free