Answer in brief
CVE-2026-64018 records a Unknown severity vulnerability in net: mana: validate rx_req_idx to prevent out-of-bounds array access. 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.
Answer in brief
CVE-2026-64018 records a Unknown severity vulnerability in net: mana: validate rx_req_idx to prevent out-of-bounds array access. 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 | >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <5ddc715324badd7f2641bc177db1d027b402adae || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <ff1d5af207bcea857d45fe81505f1bc4b29eaef0 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <763a372d344fb12fae566d36ddb46e92454ad58c || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <fa627a5eaa83fc0261f44ef3769693b886ca6e27 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <355e9f2b2a7887ca38100127989af3e422ba71d0 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <b809d0409991b75a6cff846a5ac27c3062953f84 | 5ddc715324badd7f2641bc177db1d027b402adae, ff1d5af207bcea857d45fe81505f1bc4b29eaef0, 01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01, 763a372d344fb12fae566d36ddb46e92454ad58c, fa627a5eaa83fc0261f44ef3769693b886ca6e27, 355e9f2b2a7887ca38100127989af3e422ba71d0, b809d0409991b75a6cff846a5ac27c3062953f84 |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rx_req_idx to prevent out-of-bounds array access In mana_hwc_rx_event_handler(), rx_req_idx is derived from sge->address in DMA-coherent memory. In Confidential VMs (SEV-SNP/TDX), this memory is shared unencrypted and HW can modify WQE contents at any time. No bounds check exists on rx_req_idx, which can lead to an out-of-bounds access into reqs[]. Add bounds check on rx_req_idx in mana_hwc_rx_event_handler() before using it to index the reqs[] array.
Quoted source text, attributed separately from HOL analysis.
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 | >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <5ddc715324badd7f2641bc177db1d027b402adae || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <ff1d5af207bcea857d45fe81505f1bc4b29eaef0 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <763a372d344fb12fae566d36ddb46e92454ad58c || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <fa627a5eaa83fc0261f44ef3769693b886ca6e27 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <355e9f2b2a7887ca38100127989af3e422ba71d0 || >=ca9c54d2d6a5ab2430c4eda364c77125d62e5e0f <b809d0409991b75a6cff846a5ac27c3062953f84 | 5ddc715324badd7f2641bc177db1d027b402adae, ff1d5af207bcea857d45fe81505f1bc4b29eaef0, 01f7f893d5e1baae995beeb86cd0f3e6bb2a3b01, 763a372d344fb12fae566d36ddb46e92454ad58c, fa627a5eaa83fc0261f44ef3769693b886ca6e27, 355e9f2b2a7887ca38100127989af3e422ba71d0, b809d0409991b75a6cff846a5ac27c3062953f84 |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: net: mana: validate rx_req_idx to prevent out-of-bounds array access In mana_hwc_rx_event_handler(), rx_req_idx is derived from sge->address in DMA-coherent memory. In Confidential VMs (SEV-SNP/TDX), this memory is shared unencrypted and HW can modify WQE contents at any time. No bounds check exists on rx_req_idx, which can lead to an out-of-bounds access into reqs[]. Add bounds check on rx_req_idx in mana_hwc_rx_event_handler() before using it to index the reqs[] array.
Quoted source text, attributed separately from HOL analysis.