Answer in brief
CVE-2026-90318 records a Unknown severity vulnerability in fat: release buffer head after rebuilding parent. 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 | >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <5e44b6944e11fd6647f028219ad0be4e85e9acee || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <d2a86329152c69a6200c15b2bf618755f8563826 || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <0f18d712ba9c980e05b7e33a27cde4fe3ed2d393 || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <e38587d98d1ceac608420052c0cdd901d25878f3 || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <c6a67aa438179cad40f8ae45469e304338d65c0a || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <571ea4263d69df1b48578e4314a828ecd0604755 || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <7565e44507634514e3e1899d3acad3de43f7a2c1 || >=f1e6fb0ab451dae8523fbb8c119a653b2730e938 <83e98dbf19ab64e8528e101e20f8d50e1aaa68a8 | 5e44b6944e11fd6647f028219ad0be4e85e9acee, d2a86329152c69a6200c15b2bf618755f8563826, 0f18d712ba9c980e05b7e33a27cde4fe3ed2d393, e38587d98d1ceac608420052c0cdd901d25878f3, c6a67aa438179cad40f8ae45469e304338d65c0a, 571ea4263d69df1b48578e4314a828ecd0604755, 7565e44507634514e3e1899d3acad3de43f7a2c1, 83e98dbf19ab64e8528e101e20f8d50e1aaa68a8 |
| Linux/Linuxgeneric | 3.10 | 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: fat: release buffer head after rebuilding parent fat_scan_logstart() leaves the matching directory entry's buffer head in sinfo.bh for the caller to release, just like fat_scan(). fat_rebuild_parent() uses the directory entry to rebuild the parent inode for the nostale_ro NFS export path, but does not release sinfo.bh after a successful scan. Release it once fat_build_inode() has consumed the directory entry data.
Quoted source text, attributed separately from HOL analysis.