Answer in brief
CVE-2026-72017 records a Unknown severity vulnerability in net: macb: drop in-flight Tx SKBs on close. 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.
A CVSS score is not reported in the current record. 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 | >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <6124bd785073659c99385094657b77382ebce11b || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4 || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <26b131b2d5b55a81ef6182769d28105a870c0eb2 || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <109241d9880488aafd8e104832b4d4859ad57244 || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <27f575836cfebbf872dec020428742b10650a955 | 6124bd785073659c99385094657b77382ebce11b, 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4, 26b131b2d5b55a81ef6182769d28105a870c0eb2, 109241d9880488aafd8e104832b4d4859ad57244, 27f575836cfebbf872dec020428742b10650a955 |
| Linux/Linuxgeneric | 2.6.20 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72017 records a Unknown severity vulnerability in net: macb: drop in-flight Tx SKBs on close. 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.
A CVSS score is not reported in the current record. 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 | >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <6124bd785073659c99385094657b77382ebce11b || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4 || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <26b131b2d5b55a81ef6182769d28105a870c0eb2 || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <109241d9880488aafd8e104832b4d4859ad57244 || >=89e5785fc8a6b9eafd37f2318a9a76d479c796be <27f575836cfebbf872dec020428742b10650a955 | 6124bd785073659c99385094657b77382ebce11b, 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4, 26b131b2d5b55a81ef6182769d28105a870c0eb2, 109241d9880488aafd8e104832b4d4859ad57244, 27f575836cfebbf872dec020428742b10650a955 |
| Linux/Linuxgeneric | 2.6.20 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 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: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.
Quoted source text, attributed separately from HOL analysis.