What’s Vulnerable › Vulnerabilities

CVE-2026-64350: usb: cdnsp: fix stream context array leak in cdnsp_alloc_stream_info()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-25 · updated 2026-09-03
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: usb: cdnsp: fix stream context array leak in cdnsp_alloc_stream_info() cdnsp_alloc_stream_info() allocates stream_info->stream_ctx_array with cdnsp_alloc_stream_ctx(). If a later stream ring allocation or stream mapping update fails, the error path frees the allocated stream rings and stream_rings array, but leaves stream_ctx_array allocated. Free the stream context array before falling through to the stream_rings cleanup path.

Affected products

• Linux kernel: from 5.12 before 5.15.212; from 5.16 before 6.1.178; from 6.2 before 6.6.145; from 6.7 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4 — fixed in 5.15.212, 6.1.178, 6.12.96, 6.18.39, 6.6.145, 7.1.4

How to fix

Upgrade to a fixed version: Linux kernel 5.15.212, 6.1.178, 6.12.96, 6.18.39. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3348f444a4ce43dd5c2d1aa41634cb6eff33aa64
• https://git.kernel.org/stable/c/37283f5a47127fbdea567749a2110766af53d18d
• https://git.kernel.org/stable/c/963075c4da0cd43b3d17b107c355e1eb0ee64a58
• https://git.kernel.org/stable/c/c00826e87bb75e14e0381b05da5f18ffd0241ab6
• https://git.kernel.org/stable/c/cb8e9391b7f4f77d112c51910cd7c355a337ef76
• https://git.kernel.org/stable/c/d9643bbe93a6aee24edee1a86e0303aa74bcd320
• https://git.kernel.org/stable/c/fde3c095e1d48e0ac3ab8bc32905da42fe58a36a

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