Answer in brief
CVE-2026-93095 records a Unknown severity vulnerability in hfsplus: validate thread record before delete key rebuild. 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 | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <33cda0036bc683fc888c20b04a5fc030e3e8413b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b9729c51a8b67f8b20b8a8cf395da4be63a0c15b || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <af48abc1b00d865c3f4c4d76b901c44115cb7162 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e20f3b749ad241df77ec1c3e13a9c22209aa1eb3 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7898beee166c1145c0bca364d687b8437435bf1a || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e31985c67ba00a59d9b1340af473c1dbe6c87856 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <473ea7aa35615829f0de7a71e8691d69dc24e328 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e2ea5cac61acfc11dad22f1d2d4bc71d56c52a20 | 33cda0036bc683fc888c20b04a5fc030e3e8413b, b9729c51a8b67f8b20b8a8cf395da4be63a0c15b, af48abc1b00d865c3f4c4d76b901c44115cb7162, e20f3b749ad241df77ec1c3e13a9c22209aa1eb3, 7898beee166c1145c0bca364d687b8437435bf1a, e31985c67ba00a59d9b1340af473c1dbe6c87856, 473ea7aa35615829f0de7a71e8691d69dc24e328, e2ea5cac61acfc11dad22f1d2d4bc71d56c52a20 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
In the Linux kernel, the following vulnerability has been resolved: hfsplus: validate thread record before delete key rebuild hfsplus_delete_cat() is called with str == NULL when the last open reference to an unlinked HFS+ hardlink backing inode is closed. In that case, the function finds the catalog thread by CNID and rebuilds the catalog key from thread.nodeName. That reconstruction path reads thread.nodeName.length directly from the catalog B-tree into fd.search_key and then copies length * 2 bytes into fd.search_key->cat.name.unicode. It does not first check that the found record is a thread record or that its size matches the thread name. A corrupted image can therefore provide an oversized thread name length and make hfs_bnode_read() write past the catalog search-key allocation. Read the CNID record through hfsplus_brec_read_cat(), which bounds the record read to sizeof(hfsplus_cat_entry) and verifies that a thread record's size exactly matches nodeName.length. Together, these checks ensure an accepted thread name fits HFSPLUS_MAX_STRLEN. Reject non-thread records before building the delete key from the validated thread name. Share the thread-record-type helper between hfsplus_find_cat() and hfsplus_delete_cat().
Quoted source text, attributed separately from HOL analysis.