CVE-2022-49844

HIGH EPSS 4.8%
Published May 1, 20251y ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published May 1, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: can: dev: fix skb drop check In commit a6d190f8c767 ("can: skb: drop tx skb if in listen only mode") the priv->ctrlmode element is read even on virtual CAN interfaces that do not create the struct can_priv at startup. This out-of-bounds read may lead to CAN frame drops for virtual CAN interfaces like vcan and vxcan. This patch mainly reverts the original commit and adds a new helper for CAN interface drivers that provide the required information in struct can_priv. [mkl: patch pch_can, too]

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥6.0  –  <6.0.9
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/386c49fe31ee748e053860b3bac7794a933ac9ac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ae64438be1923e3c1102d90fd41db7afcfaf54cc
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/386c49fe31ee748e053860b3bac7794a933ac9ac
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ae64438be1923e3c1102d90fd41db7afcfaf54cc
    Patch