CVE-2025-40301— Bluetooth: hci_event: validate skb length for unknown CC opcode
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client ExecutionAffected Version Matrix 12
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | afcb3369f46ed5dc883a7b92f2dd1e264d79d388< fea895de78d3bb2f0c09db9f10b18f8121b15759 | affected |
afcb3369f46ed5dc883a7b92f2dd1e264d79d388< 779f83a91d4f1bf5ddfeaf528420cbb6dbf03fa8 | affected | ||
afcb3369f46ed5dc883a7b92f2dd1e264d79d388< cf2c2acec1cf456c3d11c11a7589e886a0f963a9 | affected | ||
afcb3369f46ed5dc883a7b92f2dd1e264d79d388< 1a0ddaaf97405dbd11d4cb5a961a3f82400e8a50 | affected | ||
afcb3369f46ed5dc883a7b92f2dd1e264d79d388< 5c5f1f64681cc889d9b13e4a61285e9e029d6ab5 | affected | ||
6.1 | affected | ||
< 6.1 | unaffected | ||
6.1.159≤ 6.1.* | unaffected | ||
| … +4 more rows | |||
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I. Basic Information for CVE-2025-40301
Vulnerability Information
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Vulnerability Title
Bluetooth: hci_event: validate skb length for unknown CC opcode
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate skb length for unknown CC opcode In hci_cmd_complete_evt(), if the command complete event has an unknown opcode, we assume the first byte of the remaining skb->data contains the return status. However, parameter data has previously been pulled in hci_event_func(), which may leave the skb empty. If so, using skb->data[0] for the return status uses un-init memory. The fix is to check skb->len before using skb->data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
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，该漏洞源于未验证skb长度，可能导致使用未初始化内存。
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-2025-40301
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · Linux · 2025-12-08 · 82 CVEs total
| CVE-2023-53751 | 9.8 CRITICAL | cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname |
| CVE-2025-40320 | 9.8 CRITICAL | smb: client: fix potential cfid UAF in smb2_query_info_compound |
| CVE-2023-53769 | 9.3 CRITICAL | virt/coco/sev-guest: Double-buffer messages |
| CVE-2023-53764 | 8.8 HIGH | wifi: ath12k: Handle lock during peer_id find |
| CVE-2023-53762 | 8.8 HIGH | Bluetooth: hci_sync: Fix UAF in hci_disconnect_all_sync |
| CVE-2025-40318 | 8.8 HIGH | Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once |
| CVE-2025-40292 | 8.4 HIGH | virtio-net: fix received length check in big packets |
| CVE-2025-40309 | 8.0 HIGH | Bluetooth: SCO: Fix UAF on sco_conn_free |
| CVE-2025-40304 | 7.8 HIGH | fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds |
| CVE-2025-40291 | 7.8 HIGH | io_uring: fix regbuf vector size truncation |
| CVE-2025-40290 | 7.8 HIGH | xsk: avoid data corruption on cq descriptor number |
| CVE-2023-53759 | 7.8 HIGH | HID: hidraw: fix data race on device refcount |
| CVE-2025-40317 | 7.8 HIGH | regmap: slimbus: fix bus_context pointer in regmap init calls |
| CVE-2025-40319 | 7.8 HIGH | bpf: Sync pending IRQ work before freeing ring buffer |
| CVE-2025-40323 | 7.8 HIGH | fbcon: Set fb_display[i]->mode to NULL when the mode is released |
| CVE-2023-53753 | 7.8 HIGH | drm/amd/display: fix mapping to non-allocated address |
| CVE-2023-53752 | 7.8 HIGH | net: deal with integer overflows in kmalloc_reserve() |
| CVE-2023-53747 | 7.8 HIGH | vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF |
| CVE-2022-50623 | 7.8 HIGH | fpga: prevent integer overflow in dfl_feature_ioctl_set_irq() |
| CVE-2022-50630 | 7.8 HIGH | mm: hugetlb: fix UAF in hugetlb_handle_userfault |
Showing top 20 of 82 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-68450
btrfs: free mapping node on duplicate reloc root insert - CVE-2026-68449
ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion - CVE-2026-68448
ovl: check access to copy_file_range source with src mounter - CVE-2026-68447
drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to B - CVE-2026-68446
drm/vmwgfx: Validate vmw_surface_metadata::array_size
Same vendor: Linux
- CVE-2026-68450
btrfs: free mapping node on duplicate reloc root insert - CVE-2026-68449
ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion - CVE-2026-68448
ovl: check access to copy_file_range source with src mounter - CVE-2026-68447
drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to B - CVE-2026-68446
drm/vmwgfx: Validate vmw_surface_metadata::array_size
V. Comments for CVE-2025-40301
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