CVE-2025-40318— Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once
Possible ATT&CK Techniques 1AI
T1211 · Exploitation for StealthAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f00f36db76eb8fd10d13e80e2590f23b5beaa54d< 0a94f7e017438935c09ef833a1aa908ad9875213 | affected |
1499f79995c7ee58e3bfeeff75f6d1b37dcda881< 932c0a4f77ac13e526fdd5b42914d29c9821d389 | affected | ||
505ea2b295929e7be2b4e1bc86ee31cb7862fb01< ae76cf6c2c842944c6514c57df54d728f1916553 | affected | ||
505ea2b295929e7be2b4e1bc86ee31cb7862fb01< 9cd536970192b72257afcdfba0bfc09993e6f19c | affected | ||
505ea2b295929e7be2b4e1bc86ee31cb7862fb01< 09b0cd1297b4dbfe736aeaa0ceeab2265f47f772 | affected | ||
357603f4d396d85fbf0045512efaf1d7f7394ed7 | affected | ||
6.1.120< 6.1.159 | affected | ||
6.6.51< 6.6.117 | affected | ||
| … +8 more rows | |||
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I. Basic Information for CVE-2025-40318
Vulnerability Information
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Vulnerability Title
Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix race in hci_cmd_sync_dequeue_once hci_cmd_sync_dequeue_once() does lookup and then cancel the entry under two separate lock sections. Meanwhile, hci_cmd_sync_work() can also delete the same entry, leading to double list_del() and "UAF". Fix this by holding cmd_sync_work_lock across both lookup and cancel, so that the entry cannot be removed concurrently.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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，该漏洞源于竞态条件，可能导致释放后重用。
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-2025-40318
| # | 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-2025-40292 | 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-2025-40302 | 7.8 HIGH | media: videobuf2: forbid remove_bufs when legacy fileio is active |
| CVE-2023-53763 | 7.8 HIGH | Revert "f2fs: fix to do sanity check on extent cache correctly" |
| CVE-2023-53768 | 7.8 HIGH | regmap-irq: Fix out-of-bounds access when allocating config buffers |
| CVE-2025-40297 | 7.8 HIGH | net: bridge: fix use-after-free due to MST port state bypass |
| CVE-2022-50630 | 7.8 HIGH | mm: hugetlb: fix UAF in hugetlb_handle_userfault |
| CVE-2022-50623 | 7.8 HIGH | fpga: prevent integer overflow in dfl_feature_ioctl_set_irq() |
| 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-2023-53747 | 7.8 HIGH | vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF |
| 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() |
Showing top 20 of 82 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
Same vendor: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
V. Comments for CVE-2025-40318
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