CVE-2026-46027
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.
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Affected products
3Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/22546729b96fc873b23065dc49e3d73c45cfb874nvdPatch
- git.kernel.org/stable/c/257cdf0c5ced9c0fba8aba501d94b0a5fcef2086nvdPatch
- git.kernel.org/stable/c/5a8db80f721deee8e916c2cfdee78decda02ce4fnvdPatch
- git.kernel.org/stable/c/5eedbfd82c2884e0010fdfb3c9446a6ebcadb691nvdPatch
- git.kernel.org/stable/c/6180a296ca65b08a81914805cbc0f78da5f10a1fnvdPatch
- git.kernel.org/stable/c/83bcf9228b0501694fb2589ed1d142855a2887f2nvdPatch
- git.kernel.org/stable/c/ea0b5d0fe96356dce38f98375a57c52a04e13712nvdPatch
- git.kernel.org/stable/c/f0858e1d5624bb120b198f2a8528f97a9b0ae069nvdPatch
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