Answer in brief
CVE-2026-74281 records a High severity (CVSS 7.5) vulnerability in tipc: reject inverted service ranges from peer bindings. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=37922ea4a3105176357c8d565a9d982c4a08714a <cd1955f81bd8ebeef51b324989ac871ad1947fb6 || >=37922ea4a3105176357c8d565a9d982c4a08714a <f683200b83a0085d4e11abea8c1fdd9fdfb95b0b || >=37922ea4a3105176357c8d565a9d982c4a08714a <f1715d92ee3095d9215b493a8603a81f646fcf61 || >=37922ea4a3105176357c8d565a9d982c4a08714a <581ef56e5c34d475056ce086dc2ba0e872ba6857 || >=37922ea4a3105176357c8d565a9d982c4a08714a <7e401233f9bb74a626e70698d0d62f3a94ac0676 || >=37922ea4a3105176357c8d565a9d982c4a08714a <973bf0ed896b9898668dbadb82ed849d7d573010 || >=37922ea4a3105176357c8d565a9d982c4a08714a <2afb648f7b99216c687db1f89739c995e1144153 | cd1955f81bd8ebeef51b324989ac871ad1947fb6, f683200b83a0085d4e11abea8c1fdd9fdfb95b0b, f1715d92ee3095d9215b493a8603a81f646fcf61, 581ef56e5c34d475056ce086dc2ba0e872ba6857, 7e401233f9bb74a626e70698d0d62f3a94ac0676, 973bf0ed896b9898668dbadb82ed849d7d573010, 2afb648f7b99216c687db1f89739c995e1144153 |
| Linux/Linuxgeneric | 4.17 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.