CVE-2022-49972

MEDIUM EPSS 7.7%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: xsk: Fix corrupted packets for XDP_SHARED_UMEM Fix an issue in XDP_SHARED_UMEM mode together with aligned mode where packets are corrupted for the second and any further sockets bound to the same umem. In other words, this does not affect the first socket bound to the umem. The culprit for this bug is that the initialization of the DMA addresses for the pre-populated xsk buffer pool entries was not performed for any socket but the first one bound to the umem. Only the linear array of DMA addresses was populated. Fix this by populating the DMA addresses in the xsk buffer pool for every socket bound to the same umem.

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
7.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.16  –  <5.19.8
linuxlinux_kernel6.0any
linuxlinux_kernel6.0any
linuxlinux_kernel6.0any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2c75891d56ab6fe5ba0d415bfad91d514a4027cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/58ca14ed98c87cfe0d1408cc65a9745d9e9b7a56
    Patch