CVE-2026-90031

Description

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.

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EPSS — Exploit Prediction

0.0020

Probability of exploitation

0.09%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/1c67f2ba9c5f7c5ab3670671c0d51c6504bcaf74 https://git.kernel.org/stable/c/445fc368c6bc73eff0aeb3818cf5f355facfbb16 https://git.kernel.org/stable/c/5082546702c32a2700894d2c0ace784e038ef6a3 https://git.kernel.org/stable/c/8936d95dd04d34db96d4d1e3899eee52605bbedc https://git.kernel.org/stable/c/9481bc04a8c351ed883a7f0e10939bbe9120ead7 https://git.kernel.org/stable/c/996c319b8bd5ada1f62daae0d331d0b23e0f2117 https://git.kernel.org/stable/c/9c261a83131e241d67cb73ab578d0265bc19cfb5 https://git.kernel.org/stable/c/9cd335f4f41e84d1ab88d80150ffee8dee9650d7

Frequently Asked Questions

What is CVE-2026-90031? +

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.

How do I check if I'm vulnerable to CVE-2026-90031? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.