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CVE-2023-53384— wifi: mwifiex: avoid possible NULL skb pointer dereference

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于未检查skb_copy返回值，可能导致空指针取消引用。

AI Predicted 4.3 Difficulty: Theoretical EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 838e4f44929782a2163c7bc95a7cd2da5d8b47f9< d155c5f64cefacdc6a9a26d40be53ee2903c28ff affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< 139d285e7695279f030dbb172e2d0245425c86c6 affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< 231086e6a36316b823654f4535653f22d6344420 affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< bef85d58f7709896ed8426560ad117a73a37762f affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< d7fd24b8d1bb54c5bcf583139e11a5e651e0263c affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< 7e7197e4d6a1bc72a774590d8765909f898be1dc affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< 0c57f9ad2c3ed43abb764b0247d610ff7fdb7a00 affected
838e4f44929782a2163c7bc95a7cd2da5d8b47f9< c2509f7c37355e1f0bd5b7087815b845fd383723 affected
… +12 more rows
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I. Basic Information for CVE-2023-53384

Vulnerability Information
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Vulnerability Title
wifi: mwifiex: avoid possible NULL skb pointer dereference
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiex_handle_uap_rx_forward()', always check the value returned by 'skb_copy()' to avoid potential NULL pointer dereference in 'mwifiex_uap_queue_bridged_pkt()', and drop original skb in case of copying failure. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于未检查skb_copy返回值，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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 838e4f44929782a2163c7bc95a7cd2da5d8b47f9 ~ d155c5f64cefacdc6a9a26d40be53ee2903c28ff -
Linux Linux 3.7 -

II. Public POCs for CVE-2023-53384

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III. Intelligence Information for CVE-2023-53384

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Same Patch Batch · Linux · 2025-09-18 · 121 CVEs total

CVE-2022-50401 9.8 CRITICAL nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure
CVE-2023-53382 9.8 CRITICAL net/smc: Reset connection when trying to use SMCRv2 fails.
CVE-2022-50410 9.8 CRITICAL NFSD: Protect against send buffer overflow in NFSv2 READ
CVE-2022-50419 8.8 HIGH Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
CVE-2023-53431 8.8 HIGH scsi: ses: Handle enclosure with just a primary component gracefully
CVE-2023-53432 8.8 HIGH firewire: net: fix use after free in fwnet_finish_incoming_packet()
CVE-2022-50413 8.8 HIGH wifi: mac80211: fix use-after-free
CVE-2022-50386 8.8 HIGH Bluetooth: L2CAP: Fix user-after-free
CVE-2023-53374 8.8 HIGH Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early
CVE-2023-53372 8.2 HIGH sctp: fix a potential overflow in sctp_ifwdtsn_skip
CVE-2022-50399 7.8 HIGH media: atomisp: prevent integer overflow in sh_css_set_black_frame()
CVE-2023-53394 7.8 HIGH net/mlx5e: xsk: Fix crash on regular rq reactivation
CVE-2023-53429 7.8 HIGH btrfs: don't check PageError in __extent_writepage
CVE-2023-53373 7.8 HIGH crypto: seqiv - Handle EBUSY correctly
CVE-2023-53398 7.8 HIGH mlx5: fix possible ptp queue fifo use-after-free
CVE-2022-50417 7.8 HIGH drm/panfrost: Fix GEM handle creation ref-counting
CVE-2023-53387 7.8 HIGH scsi: ufs: core: Fix device management cmd timeout flow
CVE-2023-53388 7.8 HIGH drm/mediatek: Clean dangling pointer on bind error path
CVE-2023-53386 7.8 HIGH Bluetooth: Fix potential use-after-free when clear keys
CVE-2023-53378 7.8 HIGH drm/i915/dpt: Treat the DPT BO as a framebuffer

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53384

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