CVE-2026-68365
USB: serial: io_edgeport: cap received transmit credits
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
2.6.12
References 8
git.kernel.org
- stable/c/d9dd87bc1d7e8476d29d68883542ec6198d385c6
- stable/c/5b39d3da15344b87ef54a0a04f65b52622747e99
- stable/c/63c4e55d0741cfaf00515e807cad9293445cd348
- stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a
- stable/c/64b687f9694777754285d489abbefa3784bc78da
- stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7
- stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d
- stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f