CVE-2026-63897
Not scored
USB: serial: mct_u232: fix missing interrupt-in transfer sanity check
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix missing interrupt-in transfer sanity check Add the missing sanity check on the size of interrupt-in transfers to avoid parsing stale or uninitialised slab data (and leaking it to user space).
Exploit probability
0.2%
Published
July 19, 2026
Required by
Not available
Last source change
August 15, 2026
02 / AFFECTED SOFTWARE
Affected packages
1832 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-63897
View original source
In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix missing interrupt-in transfer sanity check Add the missing sanity check on the size of interrupt-in transfers to avoid parsing stale or uninitialised slab data (and leaking it to user space).
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/245aba83e3c288e176ed037a1f6b618b09e92ed8
- https://git.kernel.org/stable/c/631b8b7c456567f7a8d26f6fc354c8dd9cc9f832
- https://git.kernel.org/stable/c/70bb9a2661d34b93a9b83cf83e2b76289a712ef0
- https://git.kernel.org/stable/c/82b48d70bced1ec8e5f676d1fd5eccc7a44dc418
- https://git.kernel.org/stable/c/8b93ee5baeef6efabee2c3381907733ad2dbc883
- https://git.kernel.org/stable/c/a093f3e0c03d25a86d747a655d4b9322ffb2ed87
- https://git.kernel.org/stable/c/ed260b56bc9fc878e5dcbb866eab8af0688e0e67
- https://git.kernel.org/stable/c/f06bcaba29707f060706483b2020d3cafbe98f9f
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63897.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-63897