usb-storage: ene_ub6250: fix race between scan work and probe
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
- Partial Red Hat: 6 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: usb-storage: ene_ub6250: fix race between scan work and probe ene_ub6250_probe() calls usb_stor_probe2(), which starts the usb-storage infrastructure and schedules the delayed scan work. The driver then calls ene_get_card_type(), which sends an ENE command through ene_send_scsi_cmd() and the usb-storage bulk transfer helpers. Both the delayed scan work, through usb_stor_Bulk_max_lun(), and ene_get_card_type() use us->current_urb. The scan work serializes this access with us->dev_mutex, but the ENE card-type probe does not. If the scan work runs while ene_get_card_type() is still using us->current_urb, usb_submit_urb() warns that the URB is already active. Serialize ene_get_card_type() with us->dev_mutex, matching the locking used by the scan path.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.39 and later | 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.39 and later Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5, 7.3
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90031
- 2026-10-03 Alias added: GHSA-5fv5-xjmm-vvx9
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Affected versions changed · Red Hat
- 2026-10-21 CVSS score added · Red Hat
- 2026-11-07 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/9cd335f4f41e84d1ab88d80150ffee8dee9650d7
- https://git.kernel.org/stable/c/8936d95dd04d34db96d4d1e3899eee52605bbedc
- https://git.kernel.org/stable/c/9c261a83131e241d67cb73ab578d0265bc19cfb5
- https://git.kernel.org/stable/c/9481bc04a8c351ed883a7f0e10939bbe9120ead7
- https://git.kernel.org/stable/c/5082546702c32a2700894d2c0ace784e038ef6a3
- https://git.kernel.org/stable/c/1c67f2ba9c5f7c5ab3670671c0d51c6504bcaf74
- https://git.kernel.org/stable/c/996c319b8bd5ada1f62daae0d331d0b23e0f2117
- https://git.kernel.org/stable/c/445fc368c6bc73eff0aeb3818cf5f355facfbb16
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Sources
- CVE-2026-90031 · CVE Program
- CVE-2026-90031 · NVD
- FIRST EPSS
- GHSA-5fv5-xjmm-vvx9 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90031 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences