CVE-2026-68369
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/994afccfdcceb73be33f69a8a8ea71e260c9eca5
- https://git.kernel.org/stable/c/e03597ad9494b500344076589aeaa6c6d2d381d3
- https://git.kernel.org/stable/c/4cde0b38cc0cb8b7dc17295801015148de37d1d2
- https://git.kernel.org/stable/c/e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e
- https://git.kernel.org/stable/c/c2e819be6a5c7f34344926b4bd7e3dfca58cf48a
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.