CVE-2026-68374
In the Linux kernel, the following vulnerability has been resolved:
usb: core: sysfs: add lock to bos_descriptors_read()
Add a lock to the function bos_descriptors_read().
This function accesses udev->bos, which could be simultaneously freed in
usb_reset_and_verify_device(), a function that is commonly called in
drivers all over the kernel.
CSIRTS triage
- What
- A race condition exists in usb/core/sysfs bos_descriptors_read() when reading USB BOS descriptors without proper locking.
- Who is affected
- Linux systems with USB devices connected, reading BOS descriptors via sysfs concurrently.
- Urgency
- Medium priority; CVSS 5.5 indicates potential information disclosure via race condition.
- Action
- Apply kernel patch adding lock protection to bos_descriptors_read() function.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Advisory coverage (2)
External references
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