Answer in brief
CVE-2026-74334 records a Unknown severity vulnerability in RDMA/nldev: Fix locking when accessing mr->pd. 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 | >=da5c8507821573b8ed6e3f47e009f273493ffaf7 <1a132ee4e655288d9a0937ea5109a0d038431ae9 || >=da5c8507821573b8ed6e3f47e009f273493ffaf7 <50d5c02ab8e62325548bd3a6e6b758a9dcd6e7c3 | 1a132ee4e655288d9a0937ea5109a0d038431ae9, 50d5c02ab8e62325548bd3a6e6b758a9dcd6e7c3 |
| Linux/Linuxgeneric | 4.18 | 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: RDMA/nldev: Fix locking when accessing mr->pd Sashiko points out that, due to rereg_mr, the PD is actually variable and all the touches in nldev are racy. Use mr->device instead of mr->pd->device. Getting the PD restrack ID is more tricky. To avoid disturbing all the happy paths, add an rdma_restrack_sync() operation which is sort of like flush_workqueue() or synchronize_irq(): after it returns, all the old nldev touches to the mr are gone and everything sees the new PD. This makes it safe to reach into the PD pointer.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-74334 records a Unknown severity vulnerability in RDMA/nldev: Fix locking when accessing mr->pd. 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 | >=da5c8507821573b8ed6e3f47e009f273493ffaf7 <1a132ee4e655288d9a0937ea5109a0d038431ae9 || >=da5c8507821573b8ed6e3f47e009f273493ffaf7 <50d5c02ab8e62325548bd3a6e6b758a9dcd6e7c3 | 1a132ee4e655288d9a0937ea5109a0d038431ae9, 50d5c02ab8e62325548bd3a6e6b758a9dcd6e7c3 |
| Linux/Linuxgeneric | 4.18 | 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: RDMA/nldev: Fix locking when accessing mr->pd Sashiko points out that, due to rereg_mr, the PD is actually variable and all the touches in nldev are racy. Use mr->device instead of mr->pd->device. Getting the PD restrack ID is more tricky. To avoid disturbing all the happy paths, add an rdma_restrack_sync() operation which is sort of like flush_workqueue() or synchronize_irq(): after it returns, all the old nldev touches to the mr are gone and everything sees the new PD. This makes it safe to reach into the PD pointer.
Quoted source text, attributed separately from HOL analysis.