CVE-2026-43481

HIGH EPSS 2.1%
Published May 13, 20261mo ago · Modified Jun 26, 20263d ago
7.8 CVSS 3.1
High
Find Similar
Published May 13, 2026 1mo ago
Last Modified Jun 26, 2026 3d ago

Description

In the Linux kernel, the following vulnerability has been resolved: net-shapers: don't free reply skb after genlmsg_reply() genlmsg_reply() hands the reply skb to netlink, and netlink_unicast() consumes it on all return paths, whether the skb is queued successfully or freed on an error path. net_shaper_nl_get_doit() and net_shaper_nl_cap_get_doit() currently jump to free_msg after genlmsg_reply() fails and call nlmsg_free(msg), which can hit the same skb twice. Return the genlmsg_reply() error directly and keep free_msg only for pre-reply failures.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥6.13  –  <6.18.19
linuxlinux_kernel*≥6.19  –  <6.19.9
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/57885276cc16a2e2b76282c808a4e84cbecb3aae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/83f7b54242d0abbfce35a55c01322f50962ed3ee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8738dcc844fff7d0157ee775230e95df3b1884d7
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/57885276cc16a2e2b76282c808a4e84cbecb3aae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/83f7b54242d0abbfce35a55c01322f50962ed3ee
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8738dcc844fff7d0157ee775230e95df3b1884d7
    Patch