CVE-2026-46027

HIGH EPSS 39.1%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: net/smc: avoid early lgr access in smc_clc_wait_msg A CLC decline can be received while the handshake is still in an early stage, before the connection has been associated with a link group. The decline handling in smc_clc_wait_msg() updates link-group level sync state for first-contact declines, but that state only exists after link group setup has completed. Guard the link-group update accordingly and keep the per-socket peer diagnosis handling unchanged. This preserves the existing sync_err handling for established link-group contexts and avoids touching link-group state before it is available.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
39.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥4.11  –  <5.10.258
linuxlinux_kernel*≥5.11  –  <5.15.209
linuxlinux_kernel*≥5.16  –  <6.1.175
linuxlinux_kernel*≥6.2  –  <6.6.140
linuxlinux_kernel*≥6.7  –  <6.12.86
linuxlinux_kernel*≥6.13  –  <6.18.27
linuxlinux_kernel*≥6.19  –  <7.0.4

References 8

  • git.kernel.org https://git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5eedbfd82c2884e0010fdfb3c9446a6ebcadb691
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6180a296ca65b08a81914805cbc0f78da5f10a1f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/83bcf9228b0501694fb2589ed1d142855a2887f2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea0b5d0fe96356dce38f98375a57c52a04e13712
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5eedbfd82c2884e0010fdfb3c9446a6ebcadb691
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6180a296ca65b08a81914805cbc0f78da5f10a1f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/83bcf9228b0501694fb2589ed1d142855a2887f2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ea0b5d0fe96356dce38f98375a57c52a04e13712
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069
    Patch