CVE-2026-68365USB: serial: io_edgeport: cap received transmit credits
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d9dd87bc1d7e8476d29d68883542ec6198d385c6; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 5b39d3da15344b87ef54a0a04f65b52622747e99; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 63c4e55d0741cfaf00515e807cad9293445cd348; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before ee57992c053a6d395e98ced2d4c9cc3b42d8c27a; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 64b687f9694777754285d489abbefa3784bc78da; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cbe00048b69d67c8a78293cb7681b4c9963b26c7; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1e47d8228b8767c8ac722aedb388f70adeeda43d; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before faaddd811c5099f11a5f52e68a6b31a5898cda4f | CNA record |
References
- https://git.kernel.org/stable/c/d9dd87bc1d7e8476d29d68883542ec6198d385c6
- https://git.kernel.org/stable/c/5b39d3da15344b87ef54a0a04f65b52622747e99
- https://git.kernel.org/stable/c/63c4e55d0741cfaf00515e807cad9293445cd348
- https://git.kernel.org/stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a
- https://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da
- https://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7
- https://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d
- https://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.