Skip to content
CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-46027

net/smc: avoid early lgr access in smc_clc_wait_msg

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < 257cdf0c5ced9c0fba8aba501d94b0a5fcef2086affected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < 22546729b96fc873b23065dc49e3d73c45cfb874affected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < 5eedbfd82c2884e0010fdfb3c9446a6ebcadb691affected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < f0858e1d5624bb120b198f2a8528f97a9b0ae069affected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < 6180a296ca65b08a81914805cbc0f78da5f10a1faffected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < ea0b5d0fe96356dce38f98375a57c52a04e13712affected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < 83bcf9228b0501694fb2589ed1d142855a2887f2affected
  • 0cfdd8f92cac01afbb12e4500514036a2b78756b to < 5a8db80f721deee8e916c2cfdee78decda02ce4faffected

Linux Linux

Default version status: affected

  • 4.11affected
  • 0 to < 4.11unaffected
  • 5.10.258 to ≤ 5.10.*unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.6.140 to ≤ 6.6.*unaffected
  • 6.12.86 to ≤ 6.12.*unaffected
  • 6.18.27 to ≤ 6.18.*unaffected
  • 7.0.4 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References