CVE-2025-21917— usb: renesas_usbhs: Flush the notify_hotplug_work
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | bc57381e634782009b1cb2e86b18013699ada576< 4cd847a7b630a85493d0294ad9542c21aafaa246 | affected |
bc57381e634782009b1cb2e86b18013699ada576< 394965f90454d6f00fe11879142b720c6c1a872e | affected | ||
bc57381e634782009b1cb2e86b18013699ada576< 3248c1f833f924246cb98ce7da4569133c1b2292 | affected | ||
bc57381e634782009b1cb2e86b18013699ada576< 4ca078084cdd5f32d533311d6a0b63a60dcadd41 | affected | ||
bc57381e634782009b1cb2e86b18013699ada576< d50f5c0cd949593eb9a3d822b34d7b50046a06b7 | affected | ||
bc57381e634782009b1cb2e86b18013699ada576< e5aac1c9b2974636db7ce796ffa6de88fa08335e | affected | ||
bc57381e634782009b1cb2e86b18013699ada576< 830818c8e70c0364e377f0c243b28061ef7967eb | affected | ||
bc57381e634782009b1cb2e86b18013699ada576< 552ca6b87e3778f3dd5b87842f95138162e16c82 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-21917
Vulnerability Information
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Vulnerability Title
usb: renesas_usbhs: Flush the notify_hotplug_work
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: Flush the notify_hotplug_work When performing continuous unbind/bind operations on the USB drivers available on the Renesas RZ/G2L SoC, a kernel crash with the message "Unable to handle kernel NULL pointer dereference at virtual address" may occur. This issue points to the usbhsc_notify_hotplug() function. Flush the delayed work to avoid its execution when driver resources are unavailable.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于未刷新notify_hotplug_work。
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
II. Public POCs for CVE-2025-21917
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-21917 (1)
Same Patch Batch · Linux · 2025-04-01 · 93 CVEs total
| CVE-2025-21947 | 8.1 HIGH | ksmbd: fix type confusion via race condition when using ipc_msg_send_request |
| CVE-2025-21926 | net: gso: fix ownership in __udp_gso_segment | |
| CVE-2025-21932 | mm: abort vma_modify() on merge out of memory failure | |
| CVE-2025-21935 | rapidio: add check for rio_add_net() in rio_scan_alloc_net() | |
| CVE-2025-21937 | Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name() | |
| CVE-2025-21936 | Bluetooth: Add check for mgmt_alloc_skb() in mgmt_device_connected() | |
| CVE-2025-21939 | drm/xe/hmm: Don't dereference struct page pointers without notifier lock | |
| CVE-2025-21938 | mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr | |
| CVE-2025-21934 | rapidio: fix an API misues when rio_add_net() fails | |
| CVE-2025-21928 | HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() | |
| CVE-2025-21927 | nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu() | |
| CVE-2025-21929 | HID: intel-ish-hid: Fix use-after-free issue in hid_ishtp_cl_remove() | |
| CVE-2025-21925 | llc: do not use skb_get() before dev_queue_xmit() | |
| CVE-2025-21924 | net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an e | |
| CVE-2025-21922 | ppp: Fix KMSAN uninit-value warning with bpf | |
| CVE-2025-21923 | HID: hid-steam: Fix use-after-free when detaching device | |
| CVE-2025-21920 | vlan: enforce underlying device type | |
| CVE-2025-21921 | net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device | |
| CVE-2025-21919 | sched/fair: Fix potential memory corruption in child_cfs_rq_on_list | |
| CVE-2025-21918 | usb: typec: ucsi: Fix NULL pointer access |
Showing top 20 of 93 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64186
iommu/amd: Remove latent out-of-bounds access in IOMMU debug - CVE-2026-64184
mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() - CVE-2026-64185
sysfs: don't remove existing directory on update failure - CVE-2026-64183
efi: Allocate runtime workqueue before ACPI init - CVE-2026-64182
drivers/base/memory: fix memory block reference leak in pois
Same vendor: Linux
- CVE-2026-64186
iommu/amd: Remove latent out-of-bounds access in IOMMU debug - CVE-2026-64184
mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() - CVE-2026-64185
sysfs: don't remove existing directory on update failure - CVE-2026-64183
efi: Allocate runtime workqueue before ACPI init - CVE-2026-64182
drivers/base/memory: fix memory block reference leak in pois
V. Comments for CVE-2025-21917
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