CVE-2026-68369

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: printer: fix infinite loop in printer_read() printer_read() uses the same variable for the requested copy size and the number of bytes actually copied to user space. copy_to_user() returns the number of bytes not copied, so when it fails to copy anything, the computed copied length becomes zero. In that case len, buf, current_rx_bytes and current_rx_buf are left unchanged. If RX data is available and the user buffer remains unwritable, the read loop can repeat indefinitely. Track the copied length separately and return -EFAULT, or the number of bytes already copied, if an iteration makes no progress.
CVSS

No CVSS.

Configurations

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History

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Information

Published : 2026-08-10 13:20

Updated : 2026-08-19 17:20


NVD link : CVE-2026-68369

Mitre link : CVE-2026-68369

CVE.ORG link : CVE-2026-68369


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Products Affected

No product.

CWE

No CWE.