5.5
MEDIUM
CVE-2022-48775
Azure HV Linux Driver Memory Leak
Description

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add(): If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().

INFO

Published Date :

July 16, 2024, 12:15 p.m.

Last Modified :

Sept. 11, 2024, 6:15 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2022-48775 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
References to Advisories, Solutions, and Tools

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-48775 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-48775 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 11, 2024

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()? If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put(). In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add(): If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().
  • Initial Analysis by [email protected]

    Aug. 21, 2024

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()? If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put(). In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()? If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.kernel.org/stable/c/417947891bd5ae327f15efed1a0da2b12ef24962 No Types Assigned https://git.kernel.org/stable/c/417947891bd5ae327f15efed1a0da2b12ef24962 Mailing List, Patch
    Changed Reference Type https://git.kernel.org/stable/c/8bc69f86328e87a0ffa79438430cc82f3aa6a194 No Types Assigned https://git.kernel.org/stable/c/8bc69f86328e87a0ffa79438430cc82f3aa6a194 Mailing List, Patch
    Changed Reference Type https://git.kernel.org/stable/c/91d8866ca55232d21995a3d54fac96de33c9e20c No Types Assigned https://git.kernel.org/stable/c/91d8866ca55232d21995a3d54fac96de33c9e20c Mailing List, Patch
    Changed Reference Type https://git.kernel.org/stable/c/92e25b637cd4e010f776c86e4810300e773eac5c No Types Assigned https://git.kernel.org/stable/c/92e25b637cd4e010f776c86e4810300e773eac5c Mailing List, Patch
    Changed Reference Type https://git.kernel.org/stable/c/c377e2ba78d3fe9a1f0b4ec424e75f81da7e81e9 No Types Assigned https://git.kernel.org/stable/c/c377e2ba78d3fe9a1f0b4ec424e75f81da7e81e9 Mailing List, Patch
    Changed Reference Type https://git.kernel.org/stable/c/fe595759c2a4a5bb41c438474f15947d8ae32f5c No Types Assigned https://git.kernel.org/stable/c/fe595759c2a4a5bb41c438474f15947d8ae32f5c Mailing List, Patch
    Added CWE NIST CWE-401
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.231 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.181 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.102 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.25 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.11
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Aug. 03, 2024

    Action Type Old Value New Value
    Changed Description In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()? If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put(). In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add(): If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 16, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add(): If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().
    Added Reference kernel.org https://git.kernel.org/stable/c/417947891bd5ae327f15efed1a0da2b12ef24962 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/fe595759c2a4a5bb41c438474f15947d8ae32f5c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/91d8866ca55232d21995a3d54fac96de33c9e20c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/c377e2ba78d3fe9a1f0b4ec424e75f81da7e81e9 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/92e25b637cd4e010f776c86e4810300e773eac5c [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/8bc69f86328e87a0ffa79438430cc82f3aa6a194 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-48775 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-48775 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability