CVE-2026-97484— usbip: vhci_hcd: fix NULL deref in status_show_vhci
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.
在 Linux 内核中，已修复以下漏洞： usbip: vhci_hcd: 修复 status_show_vhci 中的空指针解引用问题 当 VHCI 主机控制器的探测（probe）失败时（例如，由于 USB 总线编号耗尽）， 可能返回 NULL。 函数仅检查了 是否为 NULL，但未检查由 返回的 是否为 NULL。将 NULL 传递给 不会返回 NULL，而是返回一个偏移量为 0x260 的指针，当后续对该值进行解引用时，会导致空指针解引用。 在对 进行调用之前，添加对 的空指针检查。将 移至 之前，以便在新的
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0775a9cbc694e8c7276688be3bbd2f386167ab54< 2b477ee5cc9c2670185ffd82911a20e1760008c2 |
affected |
0775a9cbc694e8c7276688be3bbd2f386167ab54< 671d2687a790f63110c3c4213230209f5c3e0e8e |
affected | ||
0775a9cbc694e8c7276688be3bbd2f386167ab54< fd7d938ab4759a45eb107e658c199a2c47cc1ace |
affected | ||
0775a9cbc694e8c7276688be3bbd2f386167ab54< 517c353e5358b2123cbf620a1798fe632fb7bdce |
affected | ||
0775a9cbc694e8c7276688be3bbd2f386167ab54< 046a94fdb02eb1df86c8fa4614104ff801ba3ab7 |
affected | ||
0775a9cbc694e8c7276688be3bbd2f386167ab54< dacd7c317ba12e035653c28a0eaaf23d91abc073 |
affected | ||
0775a9cbc694e8c7276688be3bbd2f386167ab54< bc150783542ba2e7c1257d1299c6f3269bdba270 |
affected | ||
4.9 |
affected | ||
| … +8 more rows | |||
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I. Basic Information for CVE-2026-97484
Vulnerability Information
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Vulnerability Title
usbip: vhci_hcd: fix NULL deref in status_show_vhci
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
usbip: vhci_hcd: fix NULL deref in status_show_vhci
platform_get_drvdata() can return NULL if a VHCI host controller's
probe failed (e.g. due to USB bus number exhaustion). status_show_vhci()
checked for a NULL pdev but not for a NULL hcd returned by
platform_get_drvdata(). Passing NULL to hcd_to_vhci_hcd() does not
return NULL - it returns a pointer offset of 0x260, causing a NULL
pointer dereference when that value is subsequently dereferenced.
Add a NULL check on hcd before calling hcd_to_vhci_hcd(). Move
status_show_not_ready() above status_show_vhci() to make it callable
from the new error path without a forward declaration.
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
Affected Products
II. Public POCs for CVE-2026-97484
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-97484 (7)
Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total
| CVE-2026-93207 | 9.8 CRITICAL | SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry |
| CVE-2026-97413 | 9.8 CRITICAL | RDMA/rtrs-srv: Fix integer underflow in process_read and process_write |
| CVE-2026-93228 | 9.1 CRITICAL | svcrdma: Reject Write/Reply chunks with segcount 0 |
| CVE-2026-93799 | 8.8 HIGH | wifi: iwlwifi: mvm: validate sta_id in BA window status notif |
| CVE-2026-97442 | 8.8 HIGH | wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi |
| CVE-2026-97409 | 8.8 HIGH | nvme-fc: Do not cancel requests in io target before it is initialized |
| CVE-2026-93806 | 8.8 HIGH | wifi: cfg80211: validate assoc response length before status and IE access |
| CVE-2026-93793 | 8.8 HIGH | wifi: iwlwifi: mvm: validate TX_CMD response layout |
| CVE-2026-93790 | 8.8 HIGH | wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif |
| CVE-2026-93284 | 8.8 HIGH | drm/pagemap: dma-unmap pages before handling migration errors |
| CVE-2026-93280 | 8.8 HIGH | greybus: audio: bound the topology section sizes against the fetched size |
| CVE-2026-97509 | 8.8 HIGH | thunderbolt: Keep XDomain reference during the lifetime of a service |
| CVE-2026-93827 | 8.4 HIGH | virtio-fs: avoid double-free on failed queue setup |
| CVE-2026-97450 | 8.4 HIGH | ACPICA: validate handler object type in two places |
| CVE-2026-97451 | 8.4 HIGH | ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op) |
| CVE-2026-97452 | 8.4 HIGH | ACPICA: Prevent adding invalid references |
| CVE-2026-97455 | 8.4 HIGH | ACPICA: Fix use-after-free in acpi_ds_terminate_control_method() |
| CVE-2026-97433 | 8.2 HIGH | nvme: validate FDP configuration descriptor sizes |
| CVE-2026-93221 | 8.1 HIGH | nfsd: convert nfsd_net boolean flags to unsigned long flags word |
| CVE-2026-93786 | 8.1 HIGH | ksmbd: preserve VFS inherited POSIX ACL mask |
Showing top 20 of 234 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
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bpf: Reject dev-bound-only programs on other devices -
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veth: manage XDP program pointers during channel resize -
CVE-2026-98380
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V. Comments for CVE-2026-97484
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