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.
Affected products
linux: linux kernel
References8
- git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874 Patch
- git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086 Patch
- git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4f Patch
- git.kernel.org/stable/c/5eedbfd82c2884e0010fdfb3c9446a6ebcadb691 Patch
- git.kernel.org/stable/c/6180a296ca65b08a81914805cbc0f78da5f10a1f Patch
- git.kernel.org/stable/c/83bcf9228b0501694fb2589ed1d142855a2887f2 Patch
- git.kernel.org/stable/c/ea0b5d0fe96356dce38f98375a57c52a04e13712 Patch
- git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069 Patch
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 44 · as of 14 November 2026
- CWE
- CWE-617
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