CVE-2024-38633

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-38633

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

I

n the Linux kernel, the following vulnerability has been resolved: serial: max3100: Update uart_driver_registered on driver removal The removal of the last MAX3100 device triggers the removal of the driver. However, code doesn't update the respective global variable and after insmod — rmmod — insmod cycle the kernel oopses: max3100 spi-PRP0001:01: max3100_probe: adding port 0 BUG: kernel NULL pointer dereference, address: 0000000000000408 ... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Update the actual state so next time UART driver will be registered again. Hugo also noticed, that the error path in the probe also affected by having the variable set, and not cleared. Instead of clearing it move the assignment after the successfull uart_register_driver() call.

References
Link Resource
https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b Patch
https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 Patch
https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec Patch
https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 Patch
https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 Patch
https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 Patch
https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 Patch
https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 Patch
https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b Patch
https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 Patch
https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec Patch
https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 Patch
https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 Patch
https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 Patch
https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 Patch
https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
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:*:*:*:*:*:*:*:*
History

04 Nov 2025, 18:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -

21 Nov 2024, 09:26

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b - Patch () https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b - Patch
References () https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 - Patch () https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 - Patch
References () https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec - Patch () https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec - Patch
References () https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 - Patch () https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 - Patch
References () https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 - Patch () https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 - Patch
References () https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 - Patch () https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 - Patch
References () https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 - Patch () https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 - Patch
References () https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 - Patch () https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 - Patch

09 Sep 2024, 13:53

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b - () https://git.kernel.org/stable/c/21a61a7fbcfdd3493cede43ebc7c4dfae2147a8b - Patch
References () https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 - () https://git.kernel.org/stable/c/361a92c9038e8c8c3996f8eeaa14522a8ad90752 - Patch
References () https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec - () https://git.kernel.org/stable/c/712a1fcb38dc7cac6da63ee79a88708fbf9c45ec - Patch
References () https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 - () https://git.kernel.org/stable/c/9db4222ed8cd3e50b81c8b910ae74c26427a4003 - Patch
References () https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 - () https://git.kernel.org/stable/c/b6eb7aff23e05f362e8c9b560f6ac5e727b70e00 - Patch
References () https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 - () https://git.kernel.org/stable/c/e8a10089eddba40d4b2080c9d3fc2d2b2488f762 - Patch
References () https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 - () https://git.kernel.org/stable/c/e8e2a4339decad7e59425b594a98613402652d72 - Patch
References () https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 - () https://git.kernel.org/stable/c/fa84ca78b048dfb00df0ef446f5c35e0a98ca6a0 - Patch
CWE CWE-476
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

15 Jul 2024, 07:15

Type Values Removed Values Added
References
  • {'url': 'https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

27 Jun 2024, 12:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: serial: max3100: actualización uart_driver_registered al eliminar el controlador La eliminación del último dispositivo MAX3100 desencadena la eliminación del controlador. Sin embargo, el código no actualiza la variable global respectiva y después del ciclo insmod — rmmod — insmod, el kernel falla: max3100 spi-PRP0001:01: max3100_probe: agregando el puerto 0 ERROR: desreferencia del puntero NULL del kernel, dirección: 0000000000000408... RIP: 0010:serial_core_register_port+0xa0/0x840 ... max3100_probe+0x1b6/0x280 [max3100] spi_probe+0x8d/0xb0 Actualice el estado actual para que la próxima vez el controlador UART se registre nuevamente. Hugo también notó que la ruta de error en la sonda también se veía afectada por tener la variable configurada y no borrada. En lugar de borrarlo, mueva la asignación después de la llamada exitosa a uart_register_driver().

21 Jun 2024, 11:22

Type Values Removed Values Added
New CVE
Information

Published : 2024-06-21 11:15

Updated : 2025-11-04 18:16

NVD link : CVE-2024-38633

Mitre link : CVE-2024-38633

CVE.ORG link : CVE-2024-38633

JSON object : View

Products Affected

linux

CWE
CWE-476

NULL Pointer Dereference