CVE-2022-49208

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49208
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Prevent some integer underflows My static checker complains that: drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init() warn: can subtract underflow 'info->dev->hmc_fpm_misc.max_ceqs'? It appears that "info->dev->hmc_fpm_misc.max_ceqs" comes from the firmware in irdma_sc_parse_fpm_query_buf() so, yes, there is a chance that it could be zero. Even if we trust the firmware, it's easy enough to change the condition just as a hardenning measure.

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/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75 Patch
https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4c Patch
https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4 Patch
https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1 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:*:*:*:*:*:*:*:*
History

18 Mar 2025, 20:11

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-191
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Linux linux Kernel
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/irdma: Evitar algunos desbordamientos de enteros Mi verificador estático se queja de que: drivers/infiniband/hw/irdma/ctrl.c:3605 irdma_sc_ceq_init() warn: can subtract underflow 'info->dev->hmc_fpm_misc.max_ceqs'? Parece que "info->dev->hmc_fpm_misc.max_ceqs" proviene del firmware en irdma_sc_parse_fpm_query_buf() así que, sí, existe la posibilidad de que sea cero. Incluso si confiamos en el firmware, es bastante fácil cambiar la condición como una medida de endurecimiento.
References () https://git.kernel.org/stable/c/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75 - () https://git.kernel.org/stable/c/6f6dbb819dfc1a35bcb8b709b5c83a3ea8beff75 - Patch
References () https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4c - () https://git.kernel.org/stable/c/7340c3675d7ac946f4019b84cd7c64ed542dfe4c - Patch
References () https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4 - () https://git.kernel.org/stable/c/d52dab6e03550f9c97121b0c11c0a3ed78ee76a4 - Patch
References () https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1 - () https://git.kernel.org/stable/c/f21056f15bbeacab7b4b87af232f5599d1f2bff1 - Patch

26 Feb 2025, 07:00

Type Values Removed Values Added
New CVE
Information

Published : 2025-02-26 07:00

Updated : 2025-03-18 20:11

NVD link : CVE-2022-49208

Mitre link : CVE-2022-49208

CVE.ORG link : CVE-2022-49208

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-191

Integer Underflow (Wrap or Wraparound)