Answer in brief
CVE-2026-98174 records a Unknown severity vulnerability in smb: client: fix rlist race and missing initialization. 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 <b5f924ffbfa976e4b97f17e8132c595b97482c2d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5a8f82f9c5839389cf4036029dd75a9911049e83 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <04082b1833856cb9ed87e0d3d5f04cbf836cf7da || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5f270f091256da1338c3631083e15d7f83cc05e1 || >=0 <6.6.158 || >=0 <6.12.112 || >=0 <6.18.54 || >=0 <7.2.8 | b5f924ffbfa976e4b97f17e8132c595b97482c2d, 5a8f82f9c5839389cf4036029dd75a9911049e83, 04082b1833856cb9ed87e0d3d5f04cbf836cf7da, c037d6bde3dd5fa00b017b6b98a5389ec0ebc02f, 5f270f091256da1338c3631083e15d7f83cc05e1, 6.6.158, 6.12.112, 6.18.54, 7.2.8 |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix rlist race and missing initialization TCP_Server_Info.rlist is allocated via kzalloc which zeros both ->next and ->prev to NULL instead of pointing to itself, making list_empty() always return false and list_add() dereference a NULL ->prev pointer. Also, cifs_signal_cifsd_for_reconnect() can be called concurrently from multiple cifsd threads, allowing the same server's rlist node to be added twice into the local list, corrupting it.
Quoted source text, attributed separately from HOL analysis.