smb/server: fix tree connection leak in smb2_tree_connect() (CVE-2026-98162) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-98162

smb/server: fix tree connection leak in smb2_tree_connect()

Answer in brief

CVE-2026-98162 records a Unknown severity vulnerability in smb/server: fix tree connection leak in smb2_tree_connect(). 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.

Published Sep 25, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

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.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d <a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc \|\| >=e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d <39f2032096715daae5f6fd0f587ca7a474b019df \|\| f2283680a80571ca82d710bc6ecd8f8beac67d63 \|\| 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 \|\| >=5.15.145 <5.16 \|\| >=6.1.71 <6.2	a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc, 39f2032096715daae5f6fd0f587ca7a474b019df, 5.16, 6.2
Linux/Linuxgeneric	6.6	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix tree connection leak in smb2_tree_connect() See the procedure below: smb2_tree_connect ksmbd_tree_conn_connect xa_store(&sess->tree_conns, tree_conn->id, tree_conn) ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS) ksmbd_share_tree_conn_inc(sc) ksmbd_iov_pin_rsp // fail status.ret = KSMBD_TREE_CONN_STATUS_NOMEM // do not disconnect tree_conn Disconnect the new tree connection if ksmbd_iov_pin_rsp() fails.

Quoted source text, attributed separately from HOL analysis.