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.
Affected versions
Linux kernel versions
4.1
and later are affected. Fixed in
5.10.265,
5.15.216,
6.1.183,
6.6.148,
6.12.101,
6.18.42,
7.1.6,
7.2
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-68369?
CVE-2026-68369 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.1 onward and has been patched in 5.10.265, 5.15.216, 6.1.183 and others. CVE-2026-68369 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-68369?
Yes. CVE-2026-68369 has been patched. Fixed versions include 5.10.265, 5.15.216, 6.1.183 and others. If you are running Linux kernel 4.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-68369 actively exploited?
No. CVE-2026-68369 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.