CVE-2024-50192

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-50192
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE Kunkun Jiang reported that there is a small window of opportunity for userspace to force a change of affinity for a VPE while the VPE has already been unmapped, but the corresponding doorbell interrupt still visible in /proc/irq/. Plug the race by checking the value of vmapp_count, which tracks whether the VPE is mapped ot not, and returning an error in this case. This involves making vmapp_count common to both GICv4.1 and its v4.0 ancestor.

4.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

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/01282ab5182f85e42234df2ff42f0ce790f465ff Patch
https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a Patch
https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe Patch
https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb Patch
https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196 Patch
https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6 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:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
History

29 Nov 2024, 19:00

Type Values Removed Values Added
CWE NVD-CWE-noinfo
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.7
References () https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff - () https://git.kernel.org/stable/c/01282ab5182f85e42234df2ff42f0ce790f465ff - Patch
References () https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a - () https://git.kernel.org/stable/c/1442ee0011983f0c5c4b92380e6853afb513841a - Patch
References () https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe - () https://git.kernel.org/stable/c/64b12b061c5488e2d69e67c4eaae5da64fd30bfe - Patch
References () https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb - () https://git.kernel.org/stable/c/755b9532c885b8761fb135fedcd705e21e61cccb - Patch
References () https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196 - () https://git.kernel.org/stable/c/b7d7b7fc876f836f40bf48a87e07ea18756ba196 - Patch
References () https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6 - () https://git.kernel.org/stable/c/d960505a869e66184fff97fb334980a5b797c7c6 - Patch

08 Nov 2024, 19:01

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: irqchip/gic-v4: No permitir un VMOVP en un VPE moribundo Kunkun Jiang informó que hay una pequeña ventana de oportunidad para que el espacio de usuario fuerce un cambio de afinidad para un VPE mientras el VPE ya ha sido desasignado, pero la interrupción del timbre correspondiente aún es visible en /proc/irq/. Conecte la ejecución verificando el valor de vmapp_count, que rastrea si el VPE está asignado o no, y devuelve un error en este caso. Esto implica hacer que vmapp_count sea común tanto para GICv4.1 como para su antecesor v4.0.

08 Nov 2024, 06:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-11-08 06:15

Updated : 2024-11-29 19:00

NVD link : CVE-2024-50192

Mitre link : CVE-2024-50192

CVE.ORG link : CVE-2024-50192

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo