Answer in brief
CVE-2026-43445 records a Unknown severity vulnerability in e1000/e1000e: Fix leak in 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 | 2.6.33 | Not reported |
| Linux/Linuxgeneric | >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <7eaeb778bfaa3b2a804f89321c234d59c74569db || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <0606c24a745bafd1be5d66c48361638cd9cad74b || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <519051c711dfd239ef6e4b28878efee400a035f9 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <0a1fc25deabab4efce64610e3c449485c4fa8f5f || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <fa5ba9867a55e640df0dc79bf0199770fb043f03 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <30e87ade8d678c25a8546cf38c0b498fa5cb27d3 || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <10b5e65959e955a1c8894e0a5413944b5a70204a || >=c1fa347f20f17f14a4a1575727fa24340e8a9117 <e94eaef11142b01f77bf8ba4d0b59720b7858109 | 7eaeb778bfaa3b2a804f89321c234d59c74569db, 0606c24a745bafd1be5d66c48361638cd9cad74b, 519051c711dfd239ef6e4b28878efee400a035f9, 0a1fc25deabab4efce64610e3c449485c4fa8f5f, fa5ba9867a55e640df0dc79bf0199770fb043f03, 30e87ade8d678c25a8546cf38c0b498fa5cb27d3, 10b5e65959e955a1c8894e0a5413944b5a70204a, e94eaef11142b01f77bf8ba4d0b59720b7858109 |
Published upstream
May 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
In the Linux kernel, the following vulnerability has been resolved: e1000/e1000e: Fix leak in 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 after a successful 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 would leak. In these commits, a faulty while condition caused an infinite loop in dma_error: Commit 03b1320dfcee ("e1000e: remove use of skb_dma_map from e1000e driver") Commit 602c0554d7b0 ("e1000: remove use of skb_dma_map from e1000 driver") Commit c1fa347f20f1 ("e1000/e1000e/igb/igbvf/ixgb/ixgbe: Fix tests of unsigned in *_tx_map()") fixed the infinite loop, but introduced the off-by-one error. This issue may still exist in the igbvf driver, but I did not address it in this patch.
Quoted source text, attributed separately from HOL analysis.