Answer in brief
CVE-2026-43330 records a Unknown severity vulnerability in crypto: caam - fix overflow on long hmac keys. 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 | >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <31022cfde5235c45fa765f0aabeff5f0652852f2 || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <c2fb4984fe09fc176fe4c12d5e3edf626df6511d || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <aa545df011338df13f0833fc1fabcb15c0521959 || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <cebc5ebd958346195b77f42d0cd5141b4e448fae || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <80688afb9c35b3934ce2d6be9973758915e2e0ef | 31022cfde5235c45fa765f0aabeff5f0652852f2, c2fb4984fe09fc176fe4c12d5e3edf626df6511d, aa545df011338df13f0833fc1fabcb15c0521959, cebc5ebd958346195b77f42d0cd5141b4e448fae, 80688afb9c35b3934ce2d6be9973758915e2e0ef |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
May 8, 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: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-43330 records a Unknown severity vulnerability in crypto: caam - fix overflow on long hmac keys. 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 | >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <31022cfde5235c45fa765f0aabeff5f0652852f2 || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <c2fb4984fe09fc176fe4c12d5e3edf626df6511d || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <aa545df011338df13f0833fc1fabcb15c0521959 || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <cebc5ebd958346195b77f42d0cd5141b4e448fae || >=199354d7fb6eaa2cc5bb650af0bca624baffee35 <80688afb9c35b3934ce2d6be9973758915e2e0ef | 31022cfde5235c45fa765f0aabeff5f0652852f2, c2fb4984fe09fc176fe4c12d5e3edf626df6511d, aa545df011338df13f0833fc1fabcb15c0521959, cebc5ebd958346195b77f42d0cd5141b4e448fae, 80688afb9c35b3934ce2d6be9973758915e2e0ef |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
May 8, 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: crypto: caam - fix overflow on long hmac keys When a key longer than block size is supplied, it is copied and then hashed into the real key. The memory allocated for the copy needs to be rounded to DMA cache alignment, as otherwise the hashed key may corrupt neighbouring memory. The copying is performed using kmemdup, however this leads to an overflow: reading more bytes (aligned_len - keylen) from the keylen source buffer. Fix this by replacing kmemdup with kmalloc, followed by memcpy.
Quoted source text, attributed separately from HOL analysis.