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CVE-2022-50359— media: cx88: Fix a null-ptr-deref bug in buffer_prepare()

EPSS 0.01% · P2
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I. Basic Information for CVE-2022-50359

Vulnerability Information
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Vulnerability Title
media: cx88: Fix a null-ptr-deref bug in buffer_prepare()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: cx88: Fix a null-ptr-deref bug in buffer_prepare() When the driver calls cx88_risc_buffer() to prepare the buffer, the function call may fail, resulting in a empty buffer and null-ptr-deref later in buffer_queue(). The following log can reveal it: [ 41.822762] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [ 41.824488] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 41.828027] RIP: 0010:buffer_queue+0xc2/0x500 [ 41.836311] Call Trace: [ 41.836945] __enqueue_in_driver+0x141/0x360 [ 41.837262] vb2_start_streaming+0x62/0x4a0 [ 41.838216] vb2_core_streamon+0x1da/0x2c0 [ 41.838516] __vb2_init_fileio+0x981/0xbc0 [ 41.839141] __vb2_perform_fileio+0xbf9/0x1120 [ 41.840072] vb2_fop_read+0x20e/0x400 [ 41.840346] v4l2_read+0x215/0x290 [ 41.840603] vfs_read+0x162/0x4c0 Fix this by checking the return value of cx88_risc_buffer() [hverkuil: fix coding style issues]
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cx88_risc_buffer函数调用失败时未处理空缓冲区，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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1 -
LinuxLinux 2.6.12 -

II. Public POCs for CVE-2022-50359

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III. Intelligence Information for CVE-2022-50359

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

CVE-2022-50371led: qcom-lpg: Fix sleeping in atomic
CVE-2022-50355staging: vt6655: fix some erroneous memory clean-up loops
CVE-2022-50360drm/msm/dp: fix aux-bus EP lifetime
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-2022-50358brcmfmac: return error when getting invalid max_flowrings from dongle
CVE-2022-50354drm/amdkfd: Fix kfd_process_device_init_vm error handling
CVE-2022-50368drm/msm/dsi: fix memory corruption with too many bridges
CVE-2022-50369drm/vkms: Fix null-ptr-deref in vkms_release()
CVE-2022-50370i2c: designware: Fix handling of real but unexpected device interrupts
CVE-2022-50367fs: fix UAF/GPF bug in nilfs_mdt_destroy
CVE-2022-50372cifs: Fix memory leak when build ntlmssp negotiate blob failed
CVE-2022-50373fs: dlm: fix race in lowcomms
CVE-2022-50374Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure
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

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