Answer in brief
CVE-2026-98726 records a Unknown severity vulnerability in nvme-multipath: fix underflow in ANA log bounds checks. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <03a0c21f0fd7a872953aae5714303d8f38d1e567 || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <49e8a3224c91fd5fbf22f4adcca6c8209cfdd6fe || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <e5cdb0c0a51e8ff49914ae16ef5360010c40cc85 || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <63fa2d9c9c37020bd2703fe2a6a38027b5abeb15 | 03a0c21f0fd7a872953aae5714303d8f38d1e567, 49e8a3224c91fd5fbf22f4adcca6c8209cfdd6fe, e5cdb0c0a51e8ff49914ae16ef5360010c40cc85, 63fa2d9c9c37020bd2703fe2a6a38027b5abeb15 |
| Linux/Linuxgeneric | 4.19 | Not reported |
| Linux/Linuxgeneric | >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <3045128294d347fd38542ad6e174b1b34d9c0751 || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <03a0c21f0fd7a872953aae5714303d8f38d1e567 || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <49e8a3224c91fd5fbf22f4adcca6c8209cfdd6fe || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <e5cdb0c0a51e8ff49914ae16ef5360010c40cc85 || >=0d0b660f214dc4905db7b6bc998bad0c16dfb1ba <63fa2d9c9c37020bd2703fe2a6a38027b5abeb15 | 3045128294d347fd38542ad6e174b1b34d9c0751, 03a0c21f0fd7a872953aae5714303d8f38d1e567, 49e8a3224c91fd5fbf22f4adcca6c8209cfdd6fe, e5cdb0c0a51e8ff49914ae16ef5360010c40cc85, 63fa2d9c9c37020bd2703fe2a6a38027b5abeb15 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: nvme-multipath: fix underflow in ANA log bounds checks The number of ANA groups advertised through Identify Controller sizes the ANA log buffer. The ANA log header and group descriptors independently supply the number of groups and namespace IDs to parse. Both bounds checks subtract an untrusted object size from ana_log_size before comparing the current offset. If the object is larger than the buffer, the size_t subtraction underflows and lets the parser read beyond ana_log_buf. Check the current offset before the first subtraction and compare each object size with the remaining buffer instead. This rejects inconsistent ANA data before dereferencing a truncated group descriptor or walking an oversized namespace ID array.
Quoted source text, attributed separately from HOL analysis.