CVE-2022-49920

MEDIUM EPSS 1.6%
Published May 1, 20251y ago · Modified Jun 17, 20261w ago
4.7 CVSS 3.1
Medium
Find Similar
Published May 1, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path. Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-362

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥5.12  –  <5.15.78
linuxlinux_kernel*≥5.16  –  <6.0.8
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/1ffe7100411a8b9015115ce124cd6c9c9da6f8e3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d4bc8271db21ea9f1c86a1ca4d64999f184d4aae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1ffe7100411a8b9015115ce124cd6c9c9da6f8e3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d4bc8271db21ea9f1c86a1ca4d64999f184d4aae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0
    Patch