Answer in brief
CVE-2022-50756 records a High severity (CVSS 7.8) vulnerability in nvme-pci: fix mempool alloc size. 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.
CVSS is 7.8. 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 | >=943e942e6266f22babee5efeb00f8f672fbff5bd <dfb6d54893d544151e7f480bc44cfe7823f5ad23 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <9141144b37f30e3e7fa024bcfa0a13011e546ba9 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <e1777b4286e526c58b4ee699344b0ad85aaf83a0 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <b1814724e0d7162bdf4799f2d565381bc2251c63 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <c89a529e823d51dd23c7ec0c047c7a454a428541 | dfb6d54893d544151e7f480bc44cfe7823f5ad23, 9141144b37f30e3e7fa024bcfa0a13011e546ba9, e1777b4286e526c58b4ee699344b0ad85aaf83a0, b1814724e0d7162bdf4799f2d565381bc2251c63, c89a529e823d51dd23c7ec0c047c7a454a428541 |
| Linux/Linuxgeneric | 4.18 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix mempool alloc size Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries. The result is used to determine how many PRP Lists are required. The code was previously rounding this to 1 list, but we can require 2 in the worst case. In that scenario, the driver would corrupt memory beyond the size provided by the mempool. While unlikely to occur (you'd need a 4MB in exactly 127 phys segments on a queue that doesn't support SGLs), this memory corruption has been observed by kfence.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2022-50756 records a High severity (CVSS 7.8) vulnerability in nvme-pci: fix mempool alloc size. 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.
CVSS is 7.8. 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 | >=943e942e6266f22babee5efeb00f8f672fbff5bd <dfb6d54893d544151e7f480bc44cfe7823f5ad23 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <9141144b37f30e3e7fa024bcfa0a13011e546ba9 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <e1777b4286e526c58b4ee699344b0ad85aaf83a0 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <b1814724e0d7162bdf4799f2d565381bc2251c63 || >=943e942e6266f22babee5efeb00f8f672fbff5bd <c89a529e823d51dd23c7ec0c047c7a454a428541 | dfb6d54893d544151e7f480bc44cfe7823f5ad23, 9141144b37f30e3e7fa024bcfa0a13011e546ba9, e1777b4286e526c58b4ee699344b0ad85aaf83a0, b1814724e0d7162bdf4799f2d565381bc2251c63, c89a529e823d51dd23c7ec0c047c7a454a428541 |
| Linux/Linuxgeneric | 4.18 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix mempool alloc size Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries. The result is used to determine how many PRP Lists are required. The code was previously rounding this to 1 list, but we can require 2 in the worst case. In that scenario, the driver would corrupt memory beyond the size provided by the mempool. While unlikely to occur (you'd need a 4MB in exactly 127 phys segments on a queue that doesn't support SGLs), this memory corruption has been observed by kfence.
Quoted source text, attributed separately from HOL analysis.