CVE-2022-48786

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-48786
In the Linux kernel, the following vulnerability has been resolved: vsock: remove vsock from connected table when connect is interrupted by a signal vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list. Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add. Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.

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/0bb88f3f7e8d506f3efe46d694964117e20efbfc Patch
https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 Patch
https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 Patch
https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 Patch
https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 Patch
https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 Patch
https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c Patch
https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 Patch
https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc Patch
https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 Patch
https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 Patch
https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 Patch
https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 Patch
https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 Patch
https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c Patch
https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 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:5.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*
History

03 Oct 2025, 14:47

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc - () https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc - Patch
References () https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 - () https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 - Patch
References () https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 - () https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 - Patch
References () https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 - () https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 - Patch
References () https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 - () https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 - Patch
References () https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 - () https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 - Patch
References () https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c - () https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c - Patch
References () https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 - () https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CWE NVD-CWE-Other

21 Nov 2024, 07:34

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: elimina vsock de la tabla conectada cuando la conexión es interrumpida por una señal vsock_connect() espera que el socket ya esté en el estado TCP_ESTABLISHED cuando la tarea de conexión se activa con una señal pendiente. Si esto sucede, el socket estará en la tabla conectada y no se eliminará cuando se restablezca el estado del socket. En esta situación, es común que el proceso vuelva a intentar conectar() y, si la conexión es exitosa, el socket se agregará a la tabla conectada por segunda vez, corrompiendo la lista. Evite esto llamando a vsock_remove_connected() si se recibe una señal mientras se espera una conexión. Esto es inofensivo si el socket no está en la tabla conectada, y si está en la tabla, eliminarlo evitará la corrupción de la lista debido a una doble adición. Nota para la compatibilidad: este parche requiere d5afa82c977e ("vsock: eliminación correcta del socket de la lista"), que se encuentra en todos los árboles estables actuales excepto 4.9.y.
References () https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc - () https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc -
References () https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 - () https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 -
References () https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 - () https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 -
References () https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 - () https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 -
References () https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 - () https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 -
References () https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 - () https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 -
References () https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c - () https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c -
References () https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 - () https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 -

16 Jul 2024, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-07-16 12:15

Updated : 2025-10-03 14:47

NVD link : CVE-2022-48786

Mitre link : CVE-2022-48786

CVE.ORG link : CVE-2022-48786

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other