Answer in brief
CVE-2026-68154 records a Unknown severity vulnerability in libceph: reject zero bucket types in crush_decode. 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 | >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <b8a9fb6bf806f9c4891e71ae1beab0c07c23a877 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <826cd1de5802fd392922785f9b64d76e65d2a100 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <70998f91030ee083ecb336a1dff0701c20a38081 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <05f90284223381005d6bcddab3fda4a97f9c3401 | b8a9fb6bf806f9c4891e71ae1beab0c07c23a877, 826cd1de5802fd392922785f9b64d76e65d2a100, 3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56, 70998f91030ee083ecb336a1dff0701c20a38081, 05f90284223381005d6bcddab3fda4a97f9c3401 |
| Linux/Linuxgeneric | 2.6.34 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: libceph: reject zero bucket types in crush_decode CRUSH bucket type 0 is reserved for devices. The mapper relies on that invariant and uses type 0 to identify leaf devices. If crush_decode() accepts a bucket with type 0, a malformed CRUSH map can make the mapper treat a negative bucket ID as a device and pass it to is_out(), which then indexes the OSD weight array with a negative value. Reject zero bucket types while decoding the CRUSH map so the invalid state never reaches the mapper.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-68154 records a Unknown severity vulnerability in libceph: reject zero bucket types in crush_decode. 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 | >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <b8a9fb6bf806f9c4891e71ae1beab0c07c23a877 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <826cd1de5802fd392922785f9b64d76e65d2a100 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <70998f91030ee083ecb336a1dff0701c20a38081 || >=f24e9980eb860d8600cbe5ef3d2fd9295320d229 <05f90284223381005d6bcddab3fda4a97f9c3401 | b8a9fb6bf806f9c4891e71ae1beab0c07c23a877, 826cd1de5802fd392922785f9b64d76e65d2a100, 3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56, 70998f91030ee083ecb336a1dff0701c20a38081, 05f90284223381005d6bcddab3fda4a97f9c3401 |
| Linux/Linuxgeneric | 2.6.34 | Not reported |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: libceph: reject zero bucket types in crush_decode CRUSH bucket type 0 is reserved for devices. The mapper relies on that invariant and uses type 0 to identify leaf devices. If crush_decode() accepts a bucket with type 0, a malformed CRUSH map can make the mapper treat a negative bucket ID as a device and pass it to is_out(), which then indexes the OSD weight array with a negative value. Reject zero bucket types while decoding the CRUSH map so the invalid state never reaches the mapper.
Quoted source text, attributed separately from HOL analysis.