CVE-2026-68369

UnknownEPSS 0.20%

Last modified

CVE-2026-68369 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.20%

10.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= b185f01a9ab7af586133be2555298e960237359b, < 3f81197364b57e5318620c75f3bd63f405f60552; >= b185f01a9ab7af586133be2555298e960237359b, < e225e2998e5a9b83c838dbbe4511fb0d63f88daf; >= b185f01a9ab7af586133be2555298e960237359b, < 3081b0e187065c3b9577e393ad664b12854aeaf3; >= b185f01a9ab7af586133be2555298e960237359b, < 994afccfdcceb73be33f69a8a8ea71e260c9eca5; >= b185f01a9ab7af586133be2555298e960237359b, < e03597ad9494b500344076589aeaa6c6d2d381d3; >= b185f01a9ab7af586133be2555298e960237359b, < 4cde0b38cc0cb8b7dc17295801015148de37d1d2; >= b185f01a9ab7af586133be2555298e960237359b, < e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e; >= b185f01a9ab7af586133be2555298e960237359b, < c2e819be6a5c7f34344926b4bd7e3dfca58cf48a
LinuxLinux4.1

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-68369?
Severity scoring for CVE-2026-68369 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-68369?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST