cve-2023-52864
Vulnerability from cvelistv5
Published
2024-05-21 15:31
Modified
2024-12-19 08:27
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: platform/x86: wmi: Fix opening of char device Since commit fa1f68db6ca7 ("drivers: misc: pass miscdevice pointer via file private data"), the miscdevice stores a pointer to itself inside filp->private_data, which means that private_data will not be NULL when wmi_char_open() is called. This might cause memory corruption should wmi_char_open() be unable to find its driver, something which can happen when the associated WMI device is deleted in wmi_free_devices(). Fix the problem by using the miscdevice pointer to retrieve the WMI device data associated with a char device using container_of(). This also avoids wmi_char_open() picking a wrong WMI device bound to a driver with the same name as the original driver.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/36d85fa7ae0d6be651c1a745191fa7ef055db43e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44a96796d25809502c75771d40ee693c2e44724e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cf098e937dd125c0317a0d6f261ac2a950a233d6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d426a2955e45a95b2282764105fcfb110a540453
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e0bf076b734a2fab92d8fddc2b8b03462eee7097
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/eba9ac7abab91c8f6d351460239108bef5e7a0b6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb7b06b59c6887659c6ed0ecd3110835eecbb6a3
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/36d85fa7ae0d6be651c1a745191fa7ef055db43e
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/44a96796d25809502c75771d40ee693c2e44724e
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cf098e937dd125c0317a0d6f261ac2a950a233d6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d426a2955e45a95b2282764105fcfb110a540453
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e0bf076b734a2fab92d8fddc2b8b03462eee7097
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/eba9ac7abab91c8f6d351460239108bef5e7a0b6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fb7b06b59c6887659c6ed0ecd3110835eecbb6a3
Impacted products
Vendor Product Version
Linux Linux Version: 4.15
Show details on NVD website

To clipboard 

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