CVE-2026-46153

MEDIUM EPSS 1.6%
Published May 28, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 28, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: 8021q: delete cleared egress QoS mappings vlan_dev_set_egress_priority() currently keeps cleared egress priority mappings in the hash as tombstones. Repeated set/clear cycles with distinct skb priorities therefore accumulate mapping nodes until device teardown and leak memory. Delete mappings when vlan_prio is cleared instead of keeping tombstones. Now that the egress mapping lists are RCU protected, the node can be unlinked safely and freed after a grace period.

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

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥2.6.12.1  –  <7.0.7
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any
linuxlinux_kernel2.6.12any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/7dddc74af369478ba7f9bc136d0fc1dc4570cb66
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a52e122c9e4d56ad9a03b32c915a199276d989c3
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/7dddc74af369478ba7f9bc136d0fc1dc4570cb66
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a52e122c9e4d56ad9a03b32c915a199276d989c3
    Patch