Answer in brief
CVE-2026-74495 records a Unknown severity vulnerability in igbvf: Fix leak in TX DMA error cleanup. 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 | >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <31089f4eab42e0fc248ec80c26f9b0bad59ba4cc || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <bc25d56c03e41c10bc4b40e99ca5d7b941675c04 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <845a9cdd9b03b7b6fa8de3ee80579780350a7f65 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <df07003b5a6c6c9fce60d765d6a3da815a74c41c || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <0565052b7e2f436b7f1541f4849da96dc0aa7a0e | 31089f4eab42e0fc248ec80c26f9b0bad59ba4cc, bc25d56c03e41c10bc4b40e99ca5d7b941675c04, 845a9cdd9b03b7b6fa8de3ee80579780350a7f65, df07003b5a6c6c9fce60d765d6a3da815a74c41c, 0565052b7e2f436b7f1541f4849da96dc0aa7a0e |
| Linux/Linuxgeneric | 2.6.33 | 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: igbvf: Fix leak in TX DMA error cleanup If an error is encountered while mapping TX buffers, the driver should unmap any buffers already mapped for that skb. Because count is incremented before each frag mapping, it will always match the correct number of unmappings needed when dma_error is reached. Decrementing count before the while loop in dma_error causes an off-by-one error. If any mapping was successful before an unsuccessful mapping, exactly one DMA mapping (the head) would leak. This bug was introduced by a 2010 fix for an endless loop in dma_error. All other affected drivers have already been fixed.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74495 records a Unknown severity vulnerability in igbvf: Fix leak in TX DMA error cleanup. 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 | >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <31089f4eab42e0fc248ec80c26f9b0bad59ba4cc || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <bc25d56c03e41c10bc4b40e99ca5d7b941675c04 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <845a9cdd9b03b7b6fa8de3ee80579780350a7f65 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <df07003b5a6c6c9fce60d765d6a3da815a74c41c || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <0565052b7e2f436b7f1541f4849da96dc0aa7a0e | 31089f4eab42e0fc248ec80c26f9b0bad59ba4cc, bc25d56c03e41c10bc4b40e99ca5d7b941675c04, 845a9cdd9b03b7b6fa8de3ee80579780350a7f65, df07003b5a6c6c9fce60d765d6a3da815a74c41c, 0565052b7e2f436b7f1541f4849da96dc0aa7a0e |
| Linux/Linuxgeneric | 2.6.33 | 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: igbvf: Fix leak in TX DMA error cleanup If an error is encountered while mapping TX buffers, the driver should unmap any buffers already mapped for that skb. Because count is incremented before each frag mapping, it will always match the correct number of unmappings needed when dma_error is reached. Decrementing count before the while loop in dma_error causes an off-by-one error. If any mapping was successful before an unsuccessful mapping, exactly one DMA mapping (the head) would leak. This bug was introduced by a 2010 fix for an endless loop in dma_error. All other affected drivers have already been fixed.
Quoted source text, attributed separately from HOL analysis.