CVE-2026-68365
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
USB: serial: io_edgeport: cap received transmit credits
The interrupt-status packet reports transmit credits returned by the
device. edge_interrupt_callback() adds the 16-bit value to txCredits
without checking maxTxCredits.
edge_write() uses txCredits minus the software FIFO count as the amount
of data that fits. Since the FIFO is allocated with maxTxCredits bytes,
txCredits exceeding maxTxCredits can cause OOB write in ring buffer.
Cap accumulated credits at maxTxCredits. Conforming devices should never
hit the cap.
https://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d
https://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da
https://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7
https://git.kernel.org/stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a
https://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f