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In the Linux kernel, the following vulnerability has been resolved: tipc: reject inverted service ranges from peer bindings tipc_update_nametbl()… (CVE-2026-74281)

0
Unknown
Published: 08/15/2026 (08/15/2026, 06:32:27 UTC)
Source: GCVE Database

Description

In the Linux kernel, the following vulnerability has been resolved: tipc: reject inverted service ranges from peer bindings tipc_update_nametbl() inserts a binding advertised by a peer node using the lower and upper service-range bounds taken directly from the wire, without checking that lower <= upper. The local bind path validates the ordering (tipc_uaddr_valid()), but the name-distribution path does not. A binding with lower > upper is inserted at the far end of the service-range rbtree (keyed on lower) where no lookup or withdrawal can ever match it (service_range_foreach_match() requires sr->lower <= end). The publication, its service_range node and the augmented rbtree entry are then leaked for the lifetime of the namespace, and there is no per-peer cap equivalent to TIPC_MAX_PUBL on locally created bindings. Reject inverted ranges in the network path as well. A peer node can otherwise leak unbounded binding-table memory by sending PUBLICATION items with lower > upper.

Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-x4hp-m4vp-wc59
Osv Schema Version
1.4.0
Aliases
["CVE-2026-74281"]
Ecosystems
[]
Database Specific Severity
null
Cvss Version
null

Threat ID: 6a808b6bbf8831d5394f75b5

Added to database: 08/15/2026, 15:53:15 UTC

Last updated: 08/15/2026, 15:54:49 UTC

Views: 1

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