CVE-2022-49190

MEDIUM EPSS 15.4%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: kernel/resource: fix kfree() of bootmem memory again Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.

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
15.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥3.10  –  <5.15.33
linuxlinux_kernel*≥5.16  –  <5.16.19
linuxlinux_kernel*≥5.17  –  <5.17.2

References 6

  • git.kernel.org https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3379a60f6bb4afcd9c456e340ac525ae649d3ce7
  • git.kernel.org https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8
    Patch