smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
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
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.6.157
- Fix · CNA Linux (Linux) Fixed in 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 7 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90165
- 2026-10-03 Alias added: GHSA-qgqf-cwg2-72jg
- 2026-10-13 Affected versions changed · Red Hat
- 2026-10-13 CVSS score added · Red Hat
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/3f8651f6bb52159c9e23993c77a2b51b9505ad64
- https://git.kernel.org/stable/c/af9cb997d13a17029a0d3863e33f4c837e27a8ae
- https://git.kernel.org/stable/c/b2d78c199dfd983638662ace0612d4fade3dbea1
- https://git.kernel.org/stable/c/a2eb72b4d53bb9d8d6c00f3f794eaccb4b1ce5ed
- https://git.kernel.org/stable/c/bef46b604732d83f8da29f782868de4d25bf972c
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Sources
- CVE-2026-90165 · CVE Program
- CVE-2026-90165 · NVD
- FIRST EPSS
- GHSA-qgqf-cwg2-72jg · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90165 · Red Hat security data · CC BY 4.0
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