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

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 5.12版本存在安全漏洞，该漏洞源于cdnsp_alloc_stream_info()函数中未正确释放stream context array，可能导致内存泄漏。

AI Predicted 4.0 Difficulty: Trivial EPSS 0.12% · P2

Possible ATT&CK Techniques 2 AI

T1530 · Data from Cloud Storage T1562

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 3d82904559f4f5a2622db1b21de3edf2eded7664< 37283f5a47127fbdea567749a2110766af53d18d affected
3d82904559f4f5a2622db1b21de3edf2eded7664< cb8e9391b7f4f77d112c51910cd7c355a337ef76 affected
3d82904559f4f5a2622db1b21de3edf2eded7664< fde3c095e1d48e0ac3ab8bc32905da42fe58a36a affected
3d82904559f4f5a2622db1b21de3edf2eded7664< d9643bbe93a6aee24edee1a86e0303aa74bcd320 affected
3d82904559f4f5a2622db1b21de3edf2eded7664< c00826e87bb75e14e0381b05da5f18ffd0241ab6 affected
3d82904559f4f5a2622db1b21de3edf2eded7664< 963075c4da0cd43b3d17b107c355e1eb0ee64a58 affected
3d82904559f4f5a2622db1b21de3edf2eded7664< 3348f444a4ce43dd5c2d1aa41634cb6eff33aa64 affected
5.12 affected
… +8 more rows
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I. Basic Information for CVE-2026-64350

Vulnerability Information
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Vulnerability Title
usb: cdnsp: fix stream context array leak in cdnsp_alloc_stream_info()
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel 5.12版本存在安全漏洞，该漏洞源于cdnsp_alloc_stream_info()函数中未正确释放stream context array，可能导致内存泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 3d82904559f4f5a2622db1b21de3edf2eded7664 ~ 37283f5a47127fbdea567749a2110766af53d18d -
Linux Linux 5.12 -

II. Public POCs for CVE-2026-64350

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III. Intelligence Information for CVE-2026-64350

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Patches & Fixes for CVE-2026-64350 (6)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-64355 9.8 CRITICAL bpf: Reject fragmented frames in devmap
CVE-2026-64459 9.8 CRITICAL tcp: restore RCU grace period in tcp_ao_destroy_sock
CVE-2026-64303 9.8 CRITICAL spi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVE-2026-64439 9.8 CRITICAL crypto: krb5 - filter out async aead implementations at alloc
CVE-2026-64410 9.8 CRITICAL netfilter: flowtable: IPIP tunnel hardware offload is not yet support
CVE-2026-64399 9.8 CRITICAL ksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE
CVE-2026-64397 9.8 CRITICAL ksmbd: serialize QUERY_DIRECTORY requests per file
CVE-2026-64391 9.8 CRITICAL ksmbd: use opener credentials for ADS I/O
CVE-2026-64387 9.8 CRITICAL smb: client: fix query directory replay double-free
CVE-2026-64386 9.8 CRITICAL smb: client: fix query_info() replay double-free
CVE-2026-64385 9.8 CRITICAL smb: client: fix double-free in SMB2_ioctl() replay
CVE-2026-64383 9.8 CRITICAL smb: client: fix double-free in SMB2_flush() replay
CVE-2026-64384 9.8 CRITICAL smb: client: fix change notify replay double-free
CVE-2026-64268 9.8 CRITICAL RDMA/siw: bound Read Response placement to the RREAD length
CVE-2026-64523 9.8 CRITICAL net/handshake: Take a long-lived file reference at submit
CVE-2026-64269 9.1 CRITICAL RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CVE-2026-64257 9.1 CRITICAL smb: client: reject overlapping data areas in SMB2 responses
CVE-2026-64319 9.1 CRITICAL nvmet-auth: validate reply message payload bounds against transfer length
CVE-2026-64320 9.1 CRITICAL nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page
CVE-2026-64393 9.1 CRITICAL ksmbd: run set info with opener credentials

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64350

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