CVE-2026-63899
USB: serial: mxuport: fix memory corruption with small endpoint
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mxuport: fix memory corruption with small endpoint Make sure that the bulk-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption should a malicious device report a smaller size.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 19, 2026 |
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Affected Versions
Linux / Linux
ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < 086b858b5f5125bc9d967ea2bd825f83d9f8f29d ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < 2f3661eb2446e1ef593da45e01a3b21a906768ec ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < ccbec56f2f9af008f1574335cc6a668f16603e47 ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < be3a1ed4ae51fa8dde57383277d336ce834f2cd9 ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < e906545641d34fb1a09a65b4b5cfdff40eb09681 ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < 6c0cf56f00f280d72180bb6ce79741bc787a6269 ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < b40166b4ef96067620a0f248e74ad9658c8f680c ee467a1f2066d2bfa293f7c2c7f1ff7000b0a39e < 4085f0dbb1ce2251c9a5938d693de6593f0ab2bd
Linux / Linux
3.14
References
git.kernel.org: https://git.kernel.org/stable/c/086b858b5f5125bc9d967ea2bd825f83d9f8f29d git.kernel.org: https://git.kernel.org/stable/c/2f3661eb2446e1ef593da45e01a3b21a906768ec git.kernel.org: https://git.kernel.org/stable/c/ccbec56f2f9af008f1574335cc6a668f16603e47 git.kernel.org: https://git.kernel.org/stable/c/be3a1ed4ae51fa8dde57383277d336ce834f2cd9 git.kernel.org: https://git.kernel.org/stable/c/e906545641d34fb1a09a65b4b5cfdff40eb09681 git.kernel.org: https://git.kernel.org/stable/c/6c0cf56f00f280d72180bb6ce79741bc787a6269 git.kernel.org: https://git.kernel.org/stable/c/b40166b4ef96067620a0f248e74ad9658c8f680c git.kernel.org: https://git.kernel.org/stable/c/4085f0dbb1ce2251c9a5938d693de6593f0ab2bd