Answer in brief
CVE-2026-45899 records a Medium severity (CVSS 5.5) vulnerability in ext4: drop extent cache when splitting extent fails. 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-2026-45899 records a Medium severity (CVSS 5.5) vulnerability in ext4: drop extent cache when splitting extent fails. 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 5.5. 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 | >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <6e54f8dfee359bbd58086c883ea8cffd5312999d || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <337506dc652383c80839edb8d8dcdd8ff2129b4f || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <dc7c9b9d03a59a7fe483574531327e650a4b4adc || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <120c6bd7ca9d3e80a968b758cbb3fbd67570f132 || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <808f3191498f300174523c54cab101e18795ae4e || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <31bf37cf53ede8145e2bc62da803d4506da92975 || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <79b592e8f1b435796cbc2722190368e3e8ffd7a1 | 6e54f8dfee359bbd58086c883ea8cffd5312999d, 337506dc652383c80839edb8d8dcdd8ff2129b4f, dc7c9b9d03a59a7fe483574531327e650a4b4adc, 120c6bd7ca9d3e80a968b758cbb3fbd67570f132, 808f3191498f300174523c54cab101e18795ae4e, 31bf37cf53ede8145e2bc62da803d4506da92975, 79b592e8f1b435796cbc2722190368e3e8ffd7a1 |
| Linux/Linuxgeneric | 3.12 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache when splitting extent fails When the split extent fails, we might leave some extents still being processed and return an error directly, which will result in stale extent entries remaining in the extent status tree. So drop all of the remaining potentially stale extents if the splitting fails.
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. 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 | >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <6e54f8dfee359bbd58086c883ea8cffd5312999d || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <337506dc652383c80839edb8d8dcdd8ff2129b4f || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <dc7c9b9d03a59a7fe483574531327e650a4b4adc || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <120c6bd7ca9d3e80a968b758cbb3fbd67570f132 || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <808f3191498f300174523c54cab101e18795ae4e || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <31bf37cf53ede8145e2bc62da803d4506da92975 || >=107a7bd31ac003e42c0f966aa8e5b26947de6024 <79b592e8f1b435796cbc2722190368e3e8ffd7a1 | 6e54f8dfee359bbd58086c883ea8cffd5312999d, 337506dc652383c80839edb8d8dcdd8ff2129b4f, dc7c9b9d03a59a7fe483574531327e650a4b4adc, 120c6bd7ca9d3e80a968b758cbb3fbd67570f132, 808f3191498f300174523c54cab101e18795ae4e, 31bf37cf53ede8145e2bc62da803d4506da92975, 79b592e8f1b435796cbc2722190368e3e8ffd7a1 |
| Linux/Linuxgeneric | 3.12 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 25, 2026
In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache when splitting extent fails When the split extent fails, we might leave some extents still being processed and return an error directly, which will result in stale extent entries remaining in the extent status tree. So drop all of the remaining potentially stale extents if the splitting fails.
Quoted source text, attributed separately from HOL analysis.