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CVE-2025-40283— Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF

EPSS 0.06% · P17
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I. Basic Information for CVE-2025-40283

Vulnerability Information
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Vulnerability Title
Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF There is a KASAN: slab-use-after-free read in btusb_disconnect(). Calling "usb_driver_release_interface(&btusb_driver, data->intf)" will free the btusb data associated with the interface. The same data is then used later in the function, hence the UAF. Fix by moving the accesses to btusb data to before the data is free'd.
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Bluetooth btusb未正确清理资源顺序，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

VendorProductAffected VersionsCPESubscribe
LinuxLinux fd913ef7ce619467c6b0644af48ba1fec499c623 ~ 297dbf87989e09af98f81f2bcb938041785557e8 -
LinuxLinux 4.11 -

II. Public POCs for CVE-2025-40283

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III. Intelligence Information for CVE-2025-40283

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Same Patch Batch · Linux · 2025-12-06 · 23 CVEs total

CVE-2025-40277drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE
CVE-2025-40267io_uring/rw: ensure allocated iovec gets cleared for early failure
CVE-2025-40268cifs: client: fix memory leak in smb3_fs_context_parse_param
CVE-2025-40269ALSA: usb-audio: Fix potential overflow of PCM transfer buffer
CVE-2025-40270mm, swap: fix potential UAF issue for VMA readahead
CVE-2025-40271fs/proc: fix uaf in proc_readdir_de()
CVE-2025-40272mm/secretmem: fix use-after-free race in fault handler
CVE-2025-40273NFSD: free copynotify stateid in nfs4_free_ol_stateid()
CVE-2025-40274KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying
CVE-2025-40275ALSA: usb-audio: Fix NULL pointer dereference in snd_usb_mixer_controls_badd
CVE-2025-40276drm/panthor: Flush shmem writes before mapping buffers CPU-uncached
CVE-2025-40289drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM
CVE-2025-40278net: sched: act_ife: initialize struct tc_ife to fix KMSAN kernel-infoleak
CVE-2025-40279net: sched: act_connmark: initialize struct tc_ife to fix kernel leak
CVE-2025-40280tipc: Fix use-after-free in tipc_mon_reinit_self().
CVE-2025-40281sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto
CVE-2025-40282Bluetooth: 6lowpan: reset link-local header on ipv6 recv path
CVE-2025-40284Bluetooth: MGMT: cancel mesh send timer when hdev removed
CVE-2025-40285smb/server: fix possible refcount leak in smb2_sess_setup()
CVE-2025-40286smb/server: fix possible memory leak in smb2_read()

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-40283

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