smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger() (CVE-2026-90165) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90165

smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()

Answer in brief

CVE-2026-90165 records a Unknown severity vulnerability in smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger(). 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 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=7f0cb478703cbeaddfe5c9101c5c73cd975d1073 <3f8651f6bb52159c9e23993c77a2b51b9505ad64 \|\| >=d484d621d40f4a8b8959008802d79bef3609641b <af9cb997d13a17029a0d3863e33f4c837e27a8ae \|\| >=d484d621d40f4a8b8959008802d79bef3609641b <b2d78c199dfd983638662ace0612d4fade3dbea1 \|\| >=d484d621d40f4a8b8959008802d79bef3609641b <a2eb72b4d53bb9d8d6c00f3f794eaccb4b1ce5ed \|\| >=d484d621d40f4a8b8959008802d79bef3609641b <bef46b604732d83f8da29f782868de4d25bf972c \|\| >=6.6.142 <6.6.157	3f8651f6bb52159c9e23993c77a2b51b9505ad64, af9cb997d13a17029a0d3863e33f4c837e27a8ae, b2d78c199dfd983638662ace0612d4fade3dbea1, a2eb72b4d53bb9d8d6c00f3f794eaccb4b1ce5ed, bef46b604732d83f8da29f782868de4d25bf972c, 6.6.157
Linux/Linuxgeneric	6.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 3f8651f6bb52159c9e23993c77a2b51b9505ad64 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger() See the procedure below: ksmbd_launch_ksmbd_durable_scavenger durable_scavenger_running = true server_conf.dh_task = kthread_run() // fail, dh_task is an ERR_PTR() server_ctrl_handle_reset ksmbd_stop_durable_scavenger kthread_stop(server_conf.dh_task) // invalid pointer

Quoted source text, attributed separately from HOL analysis.