CVE-2022-50361
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-17

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: add missing unregister_netdev() in wilc_netdev_ifc_init() Fault injection test reports this issue: kernel BUG at net/core/dev.c:10731! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI Call Trace: <TASK> wilc_netdev_ifc_init+0x19f/0x220 [wilc1000 884bf126e9e98af6a708f266a8dffd53f99e4bf5] wilc_cfg80211_init+0x30c/0x380 [wilc1000 884bf126e9e98af6a708f266a8dffd53f99e4bf5] wilc_bus_probe+0xad/0x2b0 [wilc1000_spi 1520a7539b6589cc6cde2ae826a523a33f8bacff] spi_probe+0xe4/0x140 really_probe+0x17e/0x3f0 __driver_probe_device+0xe3/0x170 driver_probe_device+0x49/0x120 The root case here is alloc_ordered_workqueue() fails, but cfg80211_unregister_netdevice() or unregister_netdev() not be called in error handling path. To fix add unregister_netdev goto lable to add the unregister operation in error handling path.
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Meta Information
Published
2025-09-17
Last Modified
2025-12-09
Generated
2026-06-16
AI Q&A
2025-09-17
EPSS Evaluated
2026-06-15
NVD
CVE-2022-50361
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.17 (inc) to 6.1.16 (exc)
linux linux_kernel From 6.2 (inc) to 6.2.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability in the Linux kernel's wilc1000 wifi driver occurs because the function unregister_netdev() is missing in the error handling path of wilc_netdev_ifc_init(). When alloc_ordered_workqueue() fails, the network device is not properly unregistered, leading to a kernel bug and invalid opcode error. The fix involves adding the missing unregister_netdev() call to ensure proper cleanup during error handling.

Impact Analysis

This vulnerability can cause a kernel crash (kernel BUG) due to improper error handling in the wifi driver, potentially leading to system instability or denial of service on affected Linux systems using the wilc1000 driver.

Mitigation Strategies

The vulnerability is due to a missing unregister_netdev() call in the error handling path of the wilc1000 driver initialization. Immediate mitigation would involve updating the Linux kernel to a version where this issue is fixed, as the fix adds the missing unregister_netdev() call in the error handling path. There are no specific workaround commands or steps provided.

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