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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80996

net: l2tp: do not propagate multicast notification errors

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net: l2tp: do not propagate multicast notification errors The tunnel create, tunnel modify, session create, and session modify netlink handlers send multicast notifications through helpers that can fail while allocating or encoding a message, or while multicasting it. For tunnel and session create/modify, a notification is sent after the live operation has completed. Returning a best-effort notification error as the command result can therefore report failure for an operation that already committed and can cause callers to retry and accumulate live objects. Keep sending notifications for listener visibility, but do not propagate their best-effort status as the command result. This also keeps the tunnel modify command consistent with the other notification-only paths.

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

  • 33f72e6f0c67f673fd0c63a8182dbd9ffb8cf50b to < 7efe1c31e0903a5aa796feb96d3adab574b7ff41affected
  • 33f72e6f0c67f673fd0c63a8182dbd9ffb8cf50b to < 0fe037d5eaad938aa3e9143ee071aa237750b42baffected
  • 33f72e6f0c67f673fd0c63a8182dbd9ffb8cf50b to < 9c340473f4822bb31b151c19afd17448eda5acd1affected
  • 33f72e6f0c67f673fd0c63a8182dbd9ffb8cf50b to < 50c4038f1670bf9a80c6a58ae83d1602decd8481affected
  • 33f72e6f0c67f673fd0c63a8182dbd9ffb8cf50b to < af20e269f7459d2ce69887fdf2fad7caf986c865affected

Linux Linux

Default version status: affected

  • 4.0affected
  • 0 to < 4.0unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.2.4 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References