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CVE-2022-50374— Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure

EPSS 0.02% · P4
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I. Basic Information for CVE-2022-50374

Vulnerability Information
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Vulnerability Title
Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1], for rcu_sync_enter() is called without rcu_sync_init() due to hci_uart_tty_open() ignoring percpu_init_rwsem() failure. While we are at it, fix that hci_uart_register_device() ignores percpu_init_rwsem() failure and hci_uart_unregister_device() does not call percpu_free_rwsem().
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，该漏洞源于未正确处理percpu_init_rwsem失败情况，可能导致空指针取消引用。
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 67d2f8781b9f00d1089aafcfa3dc09fcd0f343e2 ~ d7cc0d51ffcbfd1caaa809fcf9cff05c46d0fb4d -
LinuxLinux 4.15 -

II. Public POCs for CVE-2022-50374

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III. Intelligence Information for CVE-2022-50374

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Same Patch Batch · Linux · 2025-09-17 · 56 CVEs total

CVE-2022-50370i2c: designware: Fix handling of real but unexpected device interrupts
CVE-2022-50355staging: vt6655: fix some erroneous memory clean-up loops
CVE-2022-50358brcmfmac: return error when getting invalid max_flowrings from dongle
CVE-2022-50356net: sched: sfb: fix null pointer access issue when sfb_init() fails
CVE-2022-50357usb: dwc3: core: fix some leaks in probe
CVE-2022-50359media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
CVE-2022-50354drm/amdkfd: Fix kfd_process_device_init_vm error handling
CVE-2022-50367fs: fix UAF/GPF bug in nilfs_mdt_destroy
CVE-2022-50368drm/msm/dsi: fix memory corruption with too many bridges
CVE-2022-50369drm/vkms: Fix null-ptr-deref in vkms_release()
CVE-2022-50366powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue
CVE-2022-50371led: qcom-lpg: Fix sleeping in atomic
CVE-2022-50372cifs: Fix memory leak when build ntlmssp negotiate blob failed
CVE-2022-50373fs: dlm: fix race in lowcomms
CVE-2023-53335RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
CVE-2023-53336media: ipu-bridge: Fix null pointer deref on SSDB/PLD parsing warnings
CVE-2023-53337nilfs2: do not write dirty data after degenerating to read-only
CVE-2023-53338lwt: Fix return values of BPF xmit ops
CVE-2023-53339btrfs: fix BUG_ON condition in btrfs_cancel_balance
CVE-2023-53340net/mlx5: Collect command failures data only for known commands

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50374

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