CVE-2022-50331

MEDIUM EPSS 4.0%
Published Sep 15, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 15, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: wwan_hwsim: fix possible memory leak in wwan_hwsim_dev_new() Inject fault while probing module, if device_register() fails, but the refcount of kobject is not decreased to 0, the name allocated in dev_set_name() is leaked. Fix this by calling put_device(), so that name can be freed in callback function kobject_cleanup(). unreferenced object 0xffff88810152ad20 (size 8): comm "modprobe", pid 252, jiffies 4294849206 (age 22.713s) hex dump (first 8 bytes): 68 77 73 69 6d 30 00 ff hwsim0.. backtrace: [<000000009c3504ed>] __kmalloc_node_track_caller+0x44/0x1b0 [<00000000c0228a5e>] kvasprintf+0xb5/0x140 [<00000000cff8c21f>] kvasprintf_const+0x55/0x180 [<0000000055a1e073>] kobject_set_name_vargs+0x56/0x150 [<000000000a80b139>] dev_set_name+0xab/0xe0

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.14  –  <5.15.76
linuxlinux_kernel*≥5.16  –  <6.0.6
linuxlinux_kernel6.1any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/258ad2fe5ede773625adfda88b173f4123e59f45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/50c31fa952309536c6e4461ff815ddccc8dff9d5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d87973314aba6de80a49f4271dd9be4ddc08e729
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/258ad2fe5ede773625adfda88b173f4123e59f45
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/50c31fa952309536c6e4461ff815ddccc8dff9d5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d87973314aba6de80a49f4271dd9be4ddc08e729
    Patch