Answer in brief
CVE-2026-98879 records a Unknown severity vulnerability in isofs: handle set_blocksize failures. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6db7f0ba365786304558db6a3d52013ae176e03e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <61f277bf35f533b602984f0e55900111fe52f31a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cebde6d88e34396c29f2f001d90e921677cc17d6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <28d1f6aa14f5924e36602b7a31c9141d34de0b9c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9c97e3b1152d3092581745189f5d2f04c6404ef9 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9584ab6283721e5aab485c79bd06c2f78d89e55c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32 || >=0 <5.10.271 || >=0 <5.15.222 || >=0 <6.1.189 || >=0 <6.6.158 || >=0 <6.12.111 || >=0 <6.18.53 | 6db7f0ba365786304558db6a3d52013ae176e03e, 61f277bf35f533b602984f0e55900111fe52f31a, cebde6d88e34396c29f2f001d90e921677cc17d6, 28d1f6aa14f5924e36602b7a31c9141d34de0b9c, 9c97e3b1152d3092581745189f5d2f04c6404ef9, 9584ab6283721e5aab485c79bd06c2f78d89e55c, 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32, 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53 |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: isofs: handle set_blocksize failures isofs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.
Quoted source text, attributed separately from HOL analysis.