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

What is CVE-2026-64350?

CVE-2026-64350 is a medium-severity memory corruption vulnerability in Linux kernel, published on 25 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-401

Which versions are affected by CVE-2026-64350?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-64350?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-64350 being exploited?

There is no known exploitation of CVE-2026-64350 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-93743, BELL-CVE-2026-64350, DEBIAN-CVE-2026-64350, GHSA-73mh-7h7w-22q3, ROOT-OS-UBUNTU-2204-CVE-2026-64350, UBUNTU-CVE-2026-64350.