Answer in brief
CVE-2026-53110 records a High severity (CVSS 7.8) vulnerability in s390/bpf: Zero-extend bpf prog return values and kfunc arguments. 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 | >=528eb2cb87bc1353235a6384696b4849bde8b0ba <edc90a12073b9a530064a99945c183dde120cb99 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <44c4f999b03f55debb1a0c5ab5c1796895a1adf8 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <366b0e05ee24f5ba62bdc7ec1346038258b9a797 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <834918a77be51419383bf1dda9f02b81ecf26b34 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <202e42e4aa890172366354b233c42c73107a3f59 | edc90a12073b9a530064a99945c183dde120cb99, 44c4f999b03f55debb1a0c5ab5c1796895a1adf8, 366b0e05ee24f5ba62bdc7ec1346038258b9a797, 834918a77be51419383bf1dda9f02b81ecf26b34, 202e42e4aa890172366354b233c42c73107a3f59 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend signed return values. s390 BPF JIT currently implements only sign extension. Fix this omission and implement zero extension too.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-53110 records a High severity (CVSS 7.8) vulnerability in s390/bpf: Zero-extend bpf prog return values and kfunc arguments. 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 | >=528eb2cb87bc1353235a6384696b4849bde8b0ba <edc90a12073b9a530064a99945c183dde120cb99 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <44c4f999b03f55debb1a0c5ab5c1796895a1adf8 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <366b0e05ee24f5ba62bdc7ec1346038258b9a797 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <834918a77be51419383bf1dda9f02b81ecf26b34 || >=528eb2cb87bc1353235a6384696b4849bde8b0ba <202e42e4aa890172366354b233c42c73107a3f59 | edc90a12073b9a530064a99945c183dde120cb99, 44c4f999b03f55debb1a0c5ab5c1796895a1adf8, 366b0e05ee24f5ba62bdc7ec1346038258b9a797, 834918a77be51419383bf1dda9f02b81ecf26b34, 202e42e4aa890172366354b233c42c73107a3f59 |
| Linux/Linuxgeneric | 6.3 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend signed return values. s390 BPF JIT currently implements only sign extension. Fix this omission and implement zero extension too.
Quoted source text, attributed separately from HOL analysis.