CVE-2023-52864
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
platform/x86: wmi: Fix opening of char device
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | cf098e937dd125c0317a0d6f261ac2a950a233d6 | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | 9fb0eed09e1470cd4021ff52b2b9dfcbcee4c203 | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | d426a2955e45a95b2282764105fcfb110a540453 | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | e0bf076b734a2fab92d8fddc2b8b03462eee7097 | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | 44a96796d25809502c75771d40ee693c2e44724e | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | 36d85fa7ae0d6be651c1a745191fa7ef055db43e | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | fb7b06b59c6887659c6ed0ecd3110835eecbb6a3 | Unavailable | None listed |
| 44b6b7661132b1b0e5fd3147ded66f1e4a817ca9 | affected | git | eba9ac7abab91c8f6d351460239108bef5e7a0b6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.15 | Unavailable | None listed |
| 4.19.299 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.261 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.201 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.139 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.63 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.5.12 | unaffected | semver | Unavailable | 6.5.* | None listed |
| 6.6.2 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.7 | unaffected | original_commit_for_fix | Unavailable | * | None listed |