Answer in brief
CVE-2026-98492 records a Unknown severity vulnerability in net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths. 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 | >=78d901897b3cae06b38f54e48a2378cf9da21175 <bda487567d0b7b15dfa876511085c0666b9efad5 || >=78d901897b3cae06b38f54e48a2378cf9da21175 <259e6cbb6a097da8ced544ee92a6fbde35aa1338 || >=78d901897b3cae06b38f54e48a2378cf9da21175 <23d42b9a3bcd55b17d3b371544fedc708c2397e9 || 982a4d9a2e12b693f684eff943043a607628d871 || >=6.17.3 <6.18 | bda487567d0b7b15dfa876511085c0666b9efad5, 259e6cbb6a097da8ced544ee92a6fbde35aa1338, 23d42b9a3bcd55b17d3b371544fedc708c2397e9, 6.18 |
| Linux/Linuxgeneric | 6.18 | Not reported |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths Fix 3 leaks in macb_alloc() error paths: - Tx buffer allocated but crossing a 4G boundary: Tx leaked. - Rx buffer allocation fails: Tx leaked. - Rx buffer allocated but crossing a 4G boundary: Tx & Rx leaked. This is because our error handling calls macb_free(bp) which in turn frees the buffers stored in bp->queues[0], but nothing has been stored in there. Fix by storing allocated buffers into bp->queues[0] ASAP.
Quoted source text, attributed separately from HOL analysis.