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CVE-2025-37812— usb: cdns3: Fix deadlock when using NCM gadget

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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于锁机制不当，可能导致死锁。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 7733f6c32e36ff9d7adadf40001039bf219b1cbe< eebfb64c624fc738b669100173344fb441c5e719 affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< 59a760e4796a3cd88d8b9d7706e0a638de677751 affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< b96239582531775f2fdcb14de29bdb6870fd4c8c affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< c27db84ed44e50ff90d9e3a2a25fae2e0a0fa015 affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< 48a62deb857f0694f611949015e70ad194d97159 affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< 74cd6e408a4c010e404832f0e4609d29bf1d0c41 affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< 09e90a9689a4aac7a2f726dc2aa472b0b37937b7 affected
7733f6c32e36ff9d7adadf40001039bf219b1cbe< a1059896f2bfdcebcdc7153c3be2307ea319501f affected
… +10 more rows
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I. Basic Information for CVE-2025-37812

Vulnerability Information
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Vulnerability Title
usb: cdns3: Fix deadlock when using NCM gadget
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: Fix deadlock when using NCM gadget The cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit 58f2fcb3a845 ("usb: cdnsp: Fix deadlock issue during using NCM gadget"). Under PREEMPT_RT the deadlock can be readily triggered by heavy network traffic, for example using "iperf --bidir" over NCM ethernet link. The deadlock occurs because the threaded interrupt handler gets preempted by a softirq, but both are protected by the same spinlock. Prevent deadlock by disabling softirq during threaded irq handler.
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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于锁机制不当，可能导致死锁。
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 7733f6c32e36ff9d7adadf40001039bf219b1cbe ~ eebfb64c624fc738b669100173344fb441c5e719 -
Linux Linux 5.4 -

II. Public POCs for CVE-2025-37812

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III. Intelligence Information for CVE-2025-37812

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Same Patch Batch · Linux · 2025-05-08 · 33 CVEs total

CVE-2025-37801 7.8 HIGH spi: spi-imx: Add check for spi_imx_setupxfer()
CVE-2025-37822 7.8 HIGH riscv: uprobes: Add missing fence.i after building the XOL buffer
CVE-2025-37823 7.8 HIGH net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too
CVE-2025-37814 7.8 HIGH tty: Require CAP_SYS_ADMIN for all usages of TIOCL_SELMOUSEREPORT
CVE-2025-37813 7.8 HIGH usb: xhci: Fix invalid pointer dereference in Etron workaround
CVE-2025-37820 7.5 HIGH xen-netfront: handle NULL returned by xdp_convert_buff_to_frame()
CVE-2025-37802 7.5 HIGH ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"
CVE-2025-37800 7.1 HIGH driver core: fix potential NULL pointer dereference in dev_uevent()
CVE-2025-37830 cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate()
CVE-2025-37829 cpufreq: scpi: Fix null-ptr-deref in scpi_cpufreq_get_rate()
CVE-2025-37828 scsi: ufs: mcq: Add NULL check in ufshcd_mcq_abort()
CVE-2025-37826 scsi: ufs: core: Add NULL check in ufshcd_mcq_compl_pending_transfer()
CVE-2025-37827 btrfs: zoned: return EIO on RAID1 block group write pointer mismatch
CVE-2025-37831 cpufreq: apple-soc: Fix null-ptr-deref in apple_soc_cpufreq_get_rate()
CVE-2025-37834 mm/vmscan: don't try to reclaim hwpoison folio
CVE-2025-37825 nvmet: fix out-of-bounds access in nvmet_enable_port
CVE-2025-37824 tipc: fix NULL pointer dereference in tipc_mon_reinit_self()
CVE-2025-37821 sched/eevdf: Fix se->slice being set to U64_MAX and resulting crash
CVE-2025-37833 net/niu: Niu requires MSIX ENTRY_DATA fields touch before entry reads
CVE-2025-37819 irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode()

Showing top 20 of 33 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-37812

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