CVE-2024-42244

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42244
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mos7840: fix crash on resume Since commit c49cfa917025 ("USB: serial: use generic method if no alternative is provided in usb serial layer"), USB serial core calls the generic resume implementation when the driver has not provided one. This can trigger a crash on resume with mos7840 since support for multiple read URBs was added back in 2011. Specifically, both port read URBs are now submitted on resume for open ports, but the context pointer of the second URB is left set to the core rather than mos7840 port structure. Fix this by implementing dedicated suspend and resume functions for mos7840. Tested with Delock 87414 USB 2.0 to 4x serial adapter. [ johan: analyse crash and rewrite commit message; set busy flag on resume; drop bulk-in check; drop unnecessary usb_kill_urb() ]

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

References
Link Resource
https://git.kernel.org/stable/c/1094ed500987e67a9d18b0f95e1812f1cc720856 Patch
https://git.kernel.org/stable/c/553e67dec846323b5575e78a776cf594c13f98c4 Patch
https://git.kernel.org/stable/c/5ae6a64f18211851c8df6b4221381c438b9a7348 Patch
https://git.kernel.org/stable/c/932a86a711c722b45ed47ba2103adca34d225b33 Patch
https://git.kernel.org/stable/c/b14aa5673e0a8077ff4b74f0bb260735e7d5e6a4 Patch
https://git.kernel.org/stable/c/c15a688e49987385baa8804bf65d570e362f8576 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:*:*:*:*:*:*:*:*
History

08 Aug 2024, 14:53

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: USB: serial: mos7840: corrige el fallo al reanudar desde el commit c49cfa917025 ("USB: serial: use un método genérico si no se proporciona ninguna alternativa en la capa serial USB"), llamadas al núcleo serial USB la implementación del currículum genérico cuando el conductor no lo haya proporcionado. Esto puede provocar una falla en el currículum con mos7840 desde que se agregó soporte para múltiples URB de lectura en 2011. Específicamente, ambos URB de lectura de puerto ahora se envían en el currículum para puertos abiertos, pero el puntero de contexto del segundo URB se deja configurado en el núcleo en lugar de la estructura del puerto mos7840. Solucione este problema implementando funciones dedicadas de suspensión y reanudación para mos7840. Probado con el adaptador serie Delock 87414 USB 2.0 a 4x. [ johan: analiza el fallo y reescribe el mensaje de confirmación; establecer una bandera de ocupado en el currículum; dejar caer el cheque a granel; soltar usb_kill_urb() innecesario]
CWE NVD-CWE-noinfo
References () https://git.kernel.org/stable/c/1094ed500987e67a9d18b0f95e1812f1cc720856 - () https://git.kernel.org/stable/c/1094ed500987e67a9d18b0f95e1812f1cc720856 - Patch
References () https://git.kernel.org/stable/c/553e67dec846323b5575e78a776cf594c13f98c4 - () https://git.kernel.org/stable/c/553e67dec846323b5575e78a776cf594c13f98c4 - Patch
References () https://git.kernel.org/stable/c/5ae6a64f18211851c8df6b4221381c438b9a7348 - () https://git.kernel.org/stable/c/5ae6a64f18211851c8df6b4221381c438b9a7348 - Patch
References () https://git.kernel.org/stable/c/932a86a711c722b45ed47ba2103adca34d225b33 - () https://git.kernel.org/stable/c/932a86a711c722b45ed47ba2103adca34d225b33 - Patch
References () https://git.kernel.org/stable/c/b14aa5673e0a8077ff4b74f0bb260735e7d5e6a4 - () https://git.kernel.org/stable/c/b14aa5673e0a8077ff4b74f0bb260735e7d5e6a4 - Patch
References () https://git.kernel.org/stable/c/c15a688e49987385baa8804bf65d570e362f8576 - () https://git.kernel.org/stable/c/c15a688e49987385baa8804bf65d570e362f8576 - Patch
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux

07 Aug 2024, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-07 16:15

Updated : 2024-08-08 14:53

NVD link : CVE-2024-42244

Mitre link : CVE-2024-42244

CVE.ORG link : CVE-2024-42244

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo